./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/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_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/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_330c267a-f24e-447f-9f35-e3626919402c/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 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:52:38,415 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:52:38,479 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 06:52:38,484 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:52:38,485 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:52:38,507 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:52:38,507 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:52:38,508 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:52:38,508 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:52:38,509 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:52:38,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:52:38,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:52:38,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:52:38,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:52:38,512 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:52:38,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:52:38,513 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:52:38,513 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:52:38,514 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:52:38,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:52:38,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:52:38,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:52:38,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:52:38,517 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:52:38,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:52:38,517 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:52:38,518 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:52:38,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:52:38,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:52:38,519 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:52:38,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:52:38,520 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:52:38,520 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:52:38,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:52:38,520 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:52:38,520 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:52:38,521 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:52:38,521 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:52:38,521 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:52:38,521 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_330c267a-f24e-447f-9f35-e3626919402c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c [2023-11-29 06:52:38,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:52:38,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:52:38,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:52:38,768 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:52:38,769 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:52:38,770 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2023-11-29 06:52:41,523 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:52:41,918 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:52:41,918 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2023-11-29 06:52:41,948 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/data/6ee3d44b0/8f035760d6a0483b880557640f49f309/FLAGed132b357 [2023-11-29 06:52:41,961 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/data/6ee3d44b0/8f035760d6a0483b880557640f49f309 [2023-11-29 06:52:41,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:52:41,965 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:52:41,966 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:52:41,966 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:52:41,971 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:52:41,972 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:52:41" (1/1) ... [2023-11-29 06:52:41,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4908d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:41, skipping insertion in model container [2023-11-29 06:52:41,973 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:52:41" (1/1) ... [2023-11-29 06:52:42,046 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:52:42,264 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_330c267a-f24e-447f-9f35-e3626919402c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2023-11-29 06:52:42,271 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_330c267a-f24e-447f-9f35-e3626919402c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2023-11-29 06:52:43,236 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,237 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,238 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,239 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,240 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,255 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,256 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,258 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,259 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,261 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,262 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,262 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,263 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,616 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-29 06:52:43,617 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-29 06:52:43,618 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-29 06:52:43,619 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-29 06:52:43,620 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-29 06:52:43,621 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-29 06:52:43,621 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-29 06:52:43,622 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-29 06:52:43,622 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-29 06:52:43,623 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-29 06:52:43,771 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,772 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,778 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,785 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,850 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,851 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,851 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,852 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,852 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,853 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,853 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,854 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,855 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,855 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,856 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,856 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,857 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,860 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,860 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,861 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,861 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,865 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,865 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,874 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,875 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,875 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:52:43,922 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:52:43,937 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_330c267a-f24e-447f-9f35-e3626919402c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2023-11-29 06:52:43,938 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_330c267a-f24e-447f-9f35-e3626919402c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2023-11-29 06:52:43,982 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,983 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,983 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,984 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,984 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,991 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,991 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,992 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,993 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,994 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,994 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,995 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:43,995 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,027 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-29 06:52:44,028 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-29 06:52:44,028 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-29 06:52:44,029 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-29 06:52:44,030 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-29 06:52:44,030 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-29 06:52:44,031 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-29 06:52:44,031 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-29 06:52:44,032 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-29 06:52:44,032 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-29 06:52:44,068 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,068 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,069 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,074 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,080 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] [2023-11-29 06:52:44,104 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,104 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,105 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,105 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,106 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,106 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,106 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,107 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,107 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,107 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,108 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,108 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,108 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,109 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,109 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,109 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,109 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,111 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,112 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,118 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,119 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,119 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:52:44,126 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:52:44,295 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:52:44,295 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:52:44,295 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:52:44,296 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:52:44,296 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:52:44,296 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:52:44,296 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:52:44,296 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:52:44,296 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:52:44,297 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:52:44,297 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:52:44,297 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:52:44,297 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:52:44,297 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:52:44,297 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:52:44,303 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:52:44,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:44 WrapperNode [2023-11-29 06:52:44,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:52:44,305 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:52:44,305 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:52:44,305 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:52:44,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:44" (1/1) ... [2023-11-29 06:52:44,422 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:44" (1/1) ... [2023-11-29 06:52:44,486 INFO L138 Inliner]: procedures = 696, calls = 1888, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 925 [2023-11-29 06:52:44,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:52:44,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:52:44,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:52:44,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:52:44,498 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:44" (1/1) ... [2023-11-29 06:52:44,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:44" (1/1) ... [2023-11-29 06:52:44,506 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:44" (1/1) ... [2023-11-29 06:52:44,577 INFO L175 MemorySlicer]: Split 335 memory accesses to 7 slices as follows [2, 17, 236, 18, 56, 3, 3]. 70 percent of accesses are in the largest equivalence class. The 251 initializations are split as follows [2, 4, 236, 5, 0, 1, 3]. The 14 writes are split as follows [0, 3, 0, 6, 4, 1, 0]. [2023-11-29 06:52:44,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:44" (1/1) ... [2023-11-29 06:52:44,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:44" (1/1) ... [2023-11-29 06:52:44,613 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:44" (1/1) ... [2023-11-29 06:52:44,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:44" (1/1) ... [2023-11-29 06:52:44,629 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:44" (1/1) ... [2023-11-29 06:52:44,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:44" (1/1) ... [2023-11-29 06:52:44,650 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:52:44,651 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:52:44,651 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:52:44,651 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:52:44,652 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:44" (1/1) ... [2023-11-29 06:52:44,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:52:44,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:44,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:52:44,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:52:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2023-11-29 06:52:44,709 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2023-11-29 06:52:44,710 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-29 06:52:44,710 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-29 06:52:44,710 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-29 06:52:44,710 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-29 06:52:44,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:52:44,710 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-29 06:52:44,710 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-29 06:52:44,710 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-29 06:52:44,710 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-29 06:52:44,710 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-29 06:52:44,711 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-29 06:52:44,711 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-29 06:52:44,711 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-29 06:52:44,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 06:52:44,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 06:52:44,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 06:52:44,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 06:52:44,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 06:52:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 06:52:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 06:52:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-29 06:52:44,712 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-29 06:52:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 06:52:44,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 06:52:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 06:52:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:52:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 06:52:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 06:52:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 06:52:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 06:52:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 06:52:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-29 06:52:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-29 06:52:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-29 06:52:44,714 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-29 06:52:44,714 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-29 06:52:44,714 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-29 06:52:44,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:52:44,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:52:44,714 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-29 06:52:44,715 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-29 06:52:44,715 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-29 06:52:44,715 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-29 06:52:44,715 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-29 06:52:44,715 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-29 06:52:44,715 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-29 06:52:44,716 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-29 06:52:44,716 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-29 06:52:44,716 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-29 06:52:44,716 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 06:52:44,716 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 06:52:44,716 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-29 06:52:44,717 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-29 06:52:44,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:52:44,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 06:52:44,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 06:52:44,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 06:52:44,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 06:52:44,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 06:52:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-29 06:52:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-29 06:52:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-29 06:52:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-29 06:52:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-29 06:52:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-29 06:52:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-29 06:52:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-29 06:52:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-29 06:52:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-29 06:52:44,718 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-29 06:52:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-29 06:52:44,719 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-29 06:52:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-29 06:52:44,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-29 06:52:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 06:52:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 06:52:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 06:52:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 06:52:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 06:52:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 06:52:44,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 06:52:44,720 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-29 06:52:44,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-29 06:52:44,720 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-29 06:52:44,720 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-29 06:52:44,720 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-29 06:52:44,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-29 06:52:44,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:52:44,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 06:52:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 06:52:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 06:52:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 06:52:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 06:52:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 06:52:45,041 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:52:45,043 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:52:46,042 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:52:46,153 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:52:46,153 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-29 06:52:46,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:52:46 BoogieIcfgContainer [2023-11-29 06:52:46,154 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:52:46,157 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:52:46,157 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:52:46,160 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:52:46,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:52:41" (1/3) ... [2023-11-29 06:52:46,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b1068e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:52:46, skipping insertion in model container [2023-11-29 06:52:46,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:44" (2/3) ... [2023-11-29 06:52:46,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b1068e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:52:46, skipping insertion in model container [2023-11-29 06:52:46,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:52:46" (3/3) ... [2023-11-29 06:52:46,163 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2023-11-29 06:52:46,178 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:52:46,179 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 06:52:46,231 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:52:46,237 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;@24022168, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:52:46,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 06:52:46,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 319 states, 179 states have (on average 1.3016759776536313) internal successors, (233), 182 states have internal predecessors, (233), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 06:52:46,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 06:52:46,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:46,258 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 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] [2023-11-29 06:52:46,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:52:46,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:46,263 INFO L85 PathProgramCache]: Analyzing trace with hash -397418944, now seen corresponding path program 1 times [2023-11-29 06:52:46,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:46,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149070325] [2023-11-29 06:52:46,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:46,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:46,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:52:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:46,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:52:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:46,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:52:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:46,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:52:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:46,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:52:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:46,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:52:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:46,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 06:52:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:46,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:52:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:46,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:52:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:46,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 06:52:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:46,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 06:52:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:46,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 06:52:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:46,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 06:52:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:46,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 06:52:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:46,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 06:52:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:46,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 06:52:46,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:46,955 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-11-29 06:52:46,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:46,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149070325] [2023-11-29 06:52:46,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149070325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:52:46,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:52:46,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:52:46,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702897898] [2023-11-29 06:52:46,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:52:46,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:52:46,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:46,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:52:46,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:52:46,990 INFO L87 Difference]: Start difference. First operand has 319 states, 179 states have (on average 1.3016759776536313) internal successors, (233), 182 states have internal predecessors, (233), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 06:52:49,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:49,531 INFO L93 Difference]: Finished difference Result 761 states and 1300 transitions. [2023-11-29 06:52:49,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:52:49,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 96 [2023-11-29 06:52:49,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:49,559 INFO L225 Difference]: With dead ends: 761 [2023-11-29 06:52:49,559 INFO L226 Difference]: Without dead ends: 448 [2023-11-29 06:52:49,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:52:49,571 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 256 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:49,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 329 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 06:52:49,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2023-11-29 06:52:49,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 316. [2023-11-29 06:52:49,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 178 states have (on average 1.252808988764045) internal successors, (223), 180 states have internal predecessors, (223), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2023-11-29 06:52:49,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 447 transitions. [2023-11-29 06:52:49,677 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 447 transitions. Word has length 96 [2023-11-29 06:52:49,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:49,678 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 447 transitions. [2023-11-29 06:52:49,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 06:52:49,679 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 447 transitions. [2023-11-29 06:52:49,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 06:52:49,684 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:49,685 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 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] [2023-11-29 06:52:49,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:52:49,685 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:52:49,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:49,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1798619826, now seen corresponding path program 1 times [2023-11-29 06:52:49,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:49,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578186459] [2023-11-29 06:52:49,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:49,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:50,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:52:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:50,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:52:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:50,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:52:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:50,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:52:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:50,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:52:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:50,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:52:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:50,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 06:52:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:50,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:52:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:50,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:52:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:50,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 06:52:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:50,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 06:52:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:50,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 06:52:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:50,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 06:52:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:50,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 06:52:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:50,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 06:52:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:50,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 06:52:50,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:50,366 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-29 06:52:50,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:50,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578186459] [2023-11-29 06:52:50,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578186459] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:52:50,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774776779] [2023-11-29 06:52:50,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:50,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:50,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:50,371 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:50,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:52:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:50,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 2175 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:52:50,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:50,941 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-11-29 06:52:50,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:52:50,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774776779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:52:50,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:52:50,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-11-29 06:52:50,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833345848] [2023-11-29 06:52:50,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:52:50,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:52:50,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:50,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:52:50,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:52:50,945 INFO L87 Difference]: Start difference. First operand 316 states and 447 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 06:52:51,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:51,220 INFO L93 Difference]: Finished difference Result 395 states and 550 transitions. [2023-11-29 06:52:51,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:52:51,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 96 [2023-11-29 06:52:51,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:51,225 INFO L225 Difference]: With dead ends: 395 [2023-11-29 06:52:51,225 INFO L226 Difference]: Without dead ends: 317 [2023-11-29 06:52:51,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:52:51,228 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 0 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:51,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 835 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:52:51,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-11-29 06:52:51,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2023-11-29 06:52:51,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 179 states have (on average 1.2513966480446927) internal successors, (224), 181 states have internal predecessors, (224), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2023-11-29 06:52:51,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 448 transitions. [2023-11-29 06:52:51,270 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 448 transitions. Word has length 96 [2023-11-29 06:52:51,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:51,271 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 448 transitions. [2023-11-29 06:52:51,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 06:52:51,271 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 448 transitions. [2023-11-29 06:52:51,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 06:52:51,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:51,276 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 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] [2023-11-29 06:52:51,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:52:51,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:51,479 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:52:51,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:51,480 INFO L85 PathProgramCache]: Analyzing trace with hash 37371445, now seen corresponding path program 1 times [2023-11-29 06:52:51,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:51,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073644952] [2023-11-29 06:52:51,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:51,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:51,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:52:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:51,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:52:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:51,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:52:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:51,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:52:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:52,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:52:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:52,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:52:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:52,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 06:52:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:52,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:52:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:52,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:52:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:52,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 06:52:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:52,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 06:52:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:52,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 06:52:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:52,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 06:52:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:52,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 06:52:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:52,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 06:52:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:52,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 06:52:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:52,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 06:52:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:52,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 06:52:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:52,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-29 06:52:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:52,197 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 06:52:52,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:52,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073644952] [2023-11-29 06:52:52,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073644952] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:52:52,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413953455] [2023-11-29 06:52:52,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:52,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:52,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:52,199 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:52,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:52:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:52,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:52:52,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:52,839 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-11-29 06:52:52,840 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:52:52,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413953455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:52:52,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:52:52,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-11-29 06:52:52,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138687799] [2023-11-29 06:52:52,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:52:52,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:52:52,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:52,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:52:52,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:52:52,842 INFO L87 Difference]: Start difference. First operand 317 states and 448 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-29 06:52:53,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:53,269 INFO L93 Difference]: Finished difference Result 605 states and 865 transitions. [2023-11-29 06:52:53,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:52:53,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 115 [2023-11-29 06:52:53,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:53,275 INFO L225 Difference]: With dead ends: 605 [2023-11-29 06:52:53,275 INFO L226 Difference]: Without dead ends: 319 [2023-11-29 06:52:53,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:52:53,278 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 44 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:53,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 1535 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:52:53,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-11-29 06:52:53,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2023-11-29 06:52:53,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 180 states have (on average 1.25) internal successors, (225), 183 states have internal predecessors, (225), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (119), 111 states have call predecessors, (119), 111 states have call successors, (119) [2023-11-29 06:52:53,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 457 transitions. [2023-11-29 06:52:53,307 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 457 transitions. Word has length 115 [2023-11-29 06:52:53,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:53,308 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 457 transitions. [2023-11-29 06:52:53,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-29 06:52:53,308 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 457 transitions. [2023-11-29 06:52:53,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 06:52:53,311 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:53,311 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 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] [2023-11-29 06:52:53,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 06:52:53,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:53,512 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:52:53,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:53,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1276196470, now seen corresponding path program 1 times [2023-11-29 06:52:53,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:53,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959555031] [2023-11-29 06:52:53,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:53,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:53,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:52:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:53,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:52:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:53,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:52:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:53,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:52:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:53,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:52:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:53,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:52:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:53,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 06:52:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:53,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:52:53,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:53,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:52:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:54,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 06:52:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:54,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:52:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:54,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 06:52:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:54,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-29 06:52:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:54,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 06:52:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:54,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-29 06:52:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:54,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 06:52:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:54,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 06:52:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:54,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 06:52:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:54,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 06:52:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:54,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-29 06:52:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:54,177 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2023-11-29 06:52:54,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:54,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959555031] [2023-11-29 06:52:54,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959555031] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:52:54,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815376220] [2023-11-29 06:52:54,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:54,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:54,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:54,179 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:54,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:52:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:54,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 2349 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:52:54,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:54,858 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-11-29 06:52:54,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:52:54,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815376220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:52:54,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:52:54,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-11-29 06:52:54,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802153528] [2023-11-29 06:52:54,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:52:54,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:52:54,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:54,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:52:54,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:52:54,861 INFO L87 Difference]: Start difference. First operand 319 states and 457 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 06:52:55,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:55,525 INFO L93 Difference]: Finished difference Result 628 states and 920 transitions. [2023-11-29 06:52:55,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:52:55,527 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 123 [2023-11-29 06:52:55,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:55,532 INFO L225 Difference]: With dead ends: 628 [2023-11-29 06:52:55,532 INFO L226 Difference]: Without dead ends: 340 [2023-11-29 06:52:55,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:52:55,538 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 96 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2211 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:55,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2211 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:52:55,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-11-29 06:52:55,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 338. [2023-11-29 06:52:55,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 196 states have (on average 1.260204081632653) internal successors, (247), 199 states have internal predecessors, (247), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2023-11-29 06:52:55,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 494 transitions. [2023-11-29 06:52:55,589 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 494 transitions. Word has length 123 [2023-11-29 06:52:55,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:55,591 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 494 transitions. [2023-11-29 06:52:55,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 06:52:55,592 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 494 transitions. [2023-11-29 06:52:55,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-29 06:52:55,594 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:55,594 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 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] [2023-11-29 06:52:55,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:52:55,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-29 06:52:55,795 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:52:55,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:55,796 INFO L85 PathProgramCache]: Analyzing trace with hash 843859322, now seen corresponding path program 1 times [2023-11-29 06:52:55,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:55,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750463458] [2023-11-29 06:52:55,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:55,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:55,882 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:52:55,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1105107036] [2023-11-29 06:52:55,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:55,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:55,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:55,886 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:55,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:52:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:56,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 2488 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:52:56,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:56,544 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-11-29 06:52:56,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:52:56,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:56,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750463458] [2023-11-29 06:52:56,545 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:52:56,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105107036] [2023-11-29 06:52:56,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105107036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:52:56,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:52:56,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:52:56,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57802666] [2023-11-29 06:52:56,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:52:56,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:52:56,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:56,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:52:56,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:52:56,547 INFO L87 Difference]: Start difference. First operand 338 states and 494 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-29 06:52:57,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:57,150 INFO L93 Difference]: Finished difference Result 651 states and 968 transitions. [2023-11-29 06:52:57,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:52:57,151 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 136 [2023-11-29 06:52:57,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:57,155 INFO L225 Difference]: With dead ends: 651 [2023-11-29 06:52:57,155 INFO L226 Difference]: Without dead ends: 344 [2023-11-29 06:52:57,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:52:57,158 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 63 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:57,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1882 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:52:57,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-11-29 06:52:57,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 338. [2023-11-29 06:52:57,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 196 states have (on average 1.260204081632653) internal successors, (247), 199 states have internal predecessors, (247), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2023-11-29 06:52:57,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 494 transitions. [2023-11-29 06:52:57,188 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 494 transitions. Word has length 136 [2023-11-29 06:52:57,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:57,189 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 494 transitions. [2023-11-29 06:52:57,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-29 06:52:57,189 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 494 transitions. [2023-11-29 06:52:57,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 06:52:57,192 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:57,192 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:52:57,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 06:52:57,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:57,393 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:52:57,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:57,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1745306280, now seen corresponding path program 1 times [2023-11-29 06:52:57,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:57,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541907765] [2023-11-29 06:52:57,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:57,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:57,472 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:52:57,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [842354619] [2023-11-29 06:52:57,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:57,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:57,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:57,473 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:57,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 06:52:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:57,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 2557 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:52:57,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:58,010 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-11-29 06:52:58,010 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:52:58,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:58,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541907765] [2023-11-29 06:52:58,011 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:52:58,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842354619] [2023-11-29 06:52:58,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842354619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:52:58,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:52:58,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:52:58,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312790631] [2023-11-29 06:52:58,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:52:58,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:52:58,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:58,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:52:58,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:52:58,014 INFO L87 Difference]: Start difference. First operand 338 states and 494 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 06:52:58,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:58,262 INFO L93 Difference]: Finished difference Result 653 states and 978 transitions. [2023-11-29 06:52:58,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:52:58,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 152 [2023-11-29 06:52:58,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:58,266 INFO L225 Difference]: With dead ends: 653 [2023-11-29 06:52:58,267 INFO L226 Difference]: Without dead ends: 346 [2023-11-29 06:52:58,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:52:58,270 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 3 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:58,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1247 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:52:58,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2023-11-29 06:52:58,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 342. [2023-11-29 06:52:58,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 200 states have (on average 1.255) internal successors, (251), 203 states have internal predecessors, (251), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2023-11-29 06:52:58,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 498 transitions. [2023-11-29 06:52:58,300 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 498 transitions. Word has length 152 [2023-11-29 06:52:58,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:58,301 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 498 transitions. [2023-11-29 06:52:58,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 06:52:58,301 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 498 transitions. [2023-11-29 06:52:58,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 06:52:58,304 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:58,304 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:52:58,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 06:52:58,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:58,505 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:52:58,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:58,505 INFO L85 PathProgramCache]: Analyzing trace with hash 2057034842, now seen corresponding path program 1 times [2023-11-29 06:52:58,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:58,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782248414] [2023-11-29 06:52:58,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:58,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:58,582 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:52:58,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1355375056] [2023-11-29 06:52:58,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:58,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:58,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:58,584 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:58,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 06:52:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:59,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 2552 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:52:59,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:59,248 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-11-29 06:52:59,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:52:59,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:59,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782248414] [2023-11-29 06:52:59,249 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:52:59,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355375056] [2023-11-29 06:52:59,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355375056] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:52:59,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:52:59,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:52:59,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280890291] [2023-11-29 06:52:59,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:52:59,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:52:59,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:59,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:52:59,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:52:59,251 INFO L87 Difference]: Start difference. First operand 342 states and 498 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2023-11-29 06:52:59,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:59,997 INFO L93 Difference]: Finished difference Result 671 states and 987 transitions. [2023-11-29 06:52:59,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:52:59,998 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 152 [2023-11-29 06:52:59,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:53:00,002 INFO L225 Difference]: With dead ends: 671 [2023-11-29 06:53:00,002 INFO L226 Difference]: Without dead ends: 360 [2023-11-29 06:53:00,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:53:00,005 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 123 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 2529 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:53:00,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 2529 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:53:00,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-11-29 06:53:00,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 342. [2023-11-29 06:53:00,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 200 states have (on average 1.255) internal successors, (251), 203 states have internal predecessors, (251), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2023-11-29 06:53:00,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 498 transitions. [2023-11-29 06:53:00,034 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 498 transitions. Word has length 152 [2023-11-29 06:53:00,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:53:00,035 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 498 transitions. [2023-11-29 06:53:00,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2023-11-29 06:53:00,035 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 498 transitions. [2023-11-29 06:53:00,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-29 06:53:00,038 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:53:00,038 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 06:53:00,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 06:53:00,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:53:00,239 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:53:00,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:53:00,240 INFO L85 PathProgramCache]: Analyzing trace with hash -615519952, now seen corresponding path program 1 times [2023-11-29 06:53:00,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:53:00,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642249073] [2023-11-29 06:53:00,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:00,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:53:00,305 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:53:00,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1256037181] [2023-11-29 06:53:00,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:00,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:53:00,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:53:00,307 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:53:00,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 06:53:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:00,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 2691 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:53:00,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:53:00,925 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 06:53:00,926 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:53:00,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:53:00,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642249073] [2023-11-29 06:53:00,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:53:00,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256037181] [2023-11-29 06:53:00,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256037181] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:53:00,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:53:00,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:53:00,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962362507] [2023-11-29 06:53:00,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:53:00,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:53:00,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:53:00,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:53:00,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:53:00,928 INFO L87 Difference]: Start difference. First operand 342 states and 498 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-29 06:53:01,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:53:01,456 INFO L93 Difference]: Finished difference Result 629 states and 929 transitions. [2023-11-29 06:53:01,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:53:01,456 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 165 [2023-11-29 06:53:01,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:53:01,460 INFO L225 Difference]: With dead ends: 629 [2023-11-29 06:53:01,460 INFO L226 Difference]: Without dead ends: 344 [2023-11-29 06:53:01,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:53:01,463 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 98 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:53:01,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 2241 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:53:01,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-11-29 06:53:01,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2023-11-29 06:53:01,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 201 states have (on average 1.2537313432835822) internal successors, (252), 205 states have internal predecessors, (252), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2023-11-29 06:53:01,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 505 transitions. [2023-11-29 06:53:01,485 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 505 transitions. Word has length 165 [2023-11-29 06:53:01,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:53:01,486 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 505 transitions. [2023-11-29 06:53:01,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-29 06:53:01,486 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 505 transitions. [2023-11-29 06:53:01,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-29 06:53:01,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:53:01,488 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:53:01,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 06:53:01,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:53:01,689 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:53:01,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:53:01,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1337622523, now seen corresponding path program 1 times [2023-11-29 06:53:01,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:53:01,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633612378] [2023-11-29 06:53:01,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:01,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:53:01,756 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:53:01,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2138222501] [2023-11-29 06:53:01,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:01,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:53:01,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:53:01,757 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:53:01,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 06:53:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:02,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 2741 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:53:02,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:53:02,475 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-11-29 06:53:02,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:53:02,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:53:02,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633612378] [2023-11-29 06:53:02,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:53:02,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138222501] [2023-11-29 06:53:02,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138222501] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:53:02,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:53:02,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:53:02,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901841918] [2023-11-29 06:53:02,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:53:02,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:53:02,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:53:02,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:53:02,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:53:02,480 INFO L87 Difference]: Start difference. First operand 344 states and 505 transitions. Second operand has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-29 06:53:03,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:53:03,368 INFO L93 Difference]: Finished difference Result 649 states and 965 transitions. [2023-11-29 06:53:03,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:53:03,368 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 173 [2023-11-29 06:53:03,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:53:03,372 INFO L225 Difference]: With dead ends: 649 [2023-11-29 06:53:03,373 INFO L226 Difference]: Without dead ends: 362 [2023-11-29 06:53:03,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:53:03,376 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 150 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:53:03,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 2875 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:53:03,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2023-11-29 06:53:03,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 360. [2023-11-29 06:53:03,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 216 states have (on average 1.2592592592592593) internal successors, (272), 219 states have internal predecessors, (272), 116 states have call successors, (116), 24 states have call predecessors, (116), 26 states have return successors, (139), 116 states have call predecessors, (139), 114 states have call successors, (139) [2023-11-29 06:53:03,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 527 transitions. [2023-11-29 06:53:03,405 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 527 transitions. Word has length 173 [2023-11-29 06:53:03,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:53:03,405 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 527 transitions. [2023-11-29 06:53:03,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-29 06:53:03,406 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 527 transitions. [2023-11-29 06:53:03,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-29 06:53:03,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:53:03,409 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:53:03,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 06:53:03,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:53:03,611 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:53:03,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:53:03,612 INFO L85 PathProgramCache]: Analyzing trace with hash -599062957, now seen corresponding path program 1 times [2023-11-29 06:53:03,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:53:03,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805252132] [2023-11-29 06:53:03,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:03,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:53:03,689 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:53:03,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1174522075] [2023-11-29 06:53:03,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:03,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:53:03,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:53:03,691 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:53:03,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 06:53:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:04,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 2880 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:53:04,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:53:04,371 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-11-29 06:53:04,371 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:53:04,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:53:04,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805252132] [2023-11-29 06:53:04,372 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:53:04,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174522075] [2023-11-29 06:53:04,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174522075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:53:04,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:53:04,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:53:04,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384705504] [2023-11-29 06:53:04,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:53:04,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:53:04,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:53:04,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:53:04,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:53:04,375 INFO L87 Difference]: Start difference. First operand 360 states and 527 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-29 06:53:05,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:53:05,019 INFO L93 Difference]: Finished difference Result 669 states and 996 transitions. [2023-11-29 06:53:05,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:53:05,019 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 186 [2023-11-29 06:53:05,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:53:05,022 INFO L225 Difference]: With dead ends: 669 [2023-11-29 06:53:05,023 INFO L226 Difference]: Without dead ends: 366 [2023-11-29 06:53:05,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:53:05,025 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 117 mSDsluCounter, 2179 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:53:05,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 2570 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:53:05,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-11-29 06:53:05,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 360. [2023-11-29 06:53:05,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 216 states have (on average 1.2592592592592593) internal successors, (272), 219 states have internal predecessors, (272), 116 states have call successors, (116), 24 states have call predecessors, (116), 26 states have return successors, (139), 116 states have call predecessors, (139), 114 states have call successors, (139) [2023-11-29 06:53:05,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 527 transitions. [2023-11-29 06:53:05,045 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 527 transitions. Word has length 186 [2023-11-29 06:53:05,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:53:05,045 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 527 transitions. [2023-11-29 06:53:05,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-29 06:53:05,046 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 527 transitions. [2023-11-29 06:53:05,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-11-29 06:53:05,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:53:05,049 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:53:05,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-29 06:53:05,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:53:05,249 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:53:05,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:53:05,250 INFO L85 PathProgramCache]: Analyzing trace with hash -429075093, now seen corresponding path program 2 times [2023-11-29 06:53:05,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:53:05,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246368462] [2023-11-29 06:53:05,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:05,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:53:05,329 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:53:05,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1448523580] [2023-11-29 06:53:05,329 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:53:05,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:53:05,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:53:05,330 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:53:05,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 06:53:06,251 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:53:06,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:53:06,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 3083 conjuncts, 323 conjunts are in the unsatisfiable core [2023-11-29 06:53:06,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:53:07,845 INFO L224 Elim1Store]: Index analysis took 212 ms [2023-11-29 06:53:10,138 INFO L349 Elim1Store]: treesize reduction 532, result has 50.0 percent of original size [2023-11-29 06:53:10,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 134 select indices, 134 select index equivalence classes, 8778 disjoint index pairs (out of 8911 index pairs), introduced 134 new quantified variables, introduced 133 case distinctions, treesize of input 671 treesize of output 935 [2023-11-29 06:53:33,216 WARN L667 sPolynomialRelations]: Constructing 2147483647(two to the power of 133 dual juncts. [2023-11-29 06:53:33,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:53:33,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246368462] [2023-11-29 06:53:33,217 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:53:33,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448523580] [2023-11-29 06:53:33,217 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-11-29 06:53:33,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 06:53:33,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 06:53:33,418 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.OutOfMemoryError: Requested array size exceeds VM limit at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:669) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildBoundConstraint(DualJunctionTir.java:541) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne(DualJunctionTir.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminate(DualJunctionTir.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:543) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:522) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:515) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:326) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:298) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) [2023-11-29 06:53:33,420 INFO L158 Benchmark]: Toolchain (without parser) took 51455.31ms. Allocated memory was 140.5MB in the beginning and 826.3MB in the end (delta: 685.8MB). Free memory was 91.1MB in the beginning and 260.4MB in the end (delta: -169.4MB). Peak memory consumption was 518.1MB. Max. memory is 16.1GB. [2023-11-29 06:53:33,420 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 140.5MB. Free memory is still 112.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:53:33,420 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2337.97ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 91.1MB in the beginning and 64.3MB in the end (delta: 26.8MB). Peak memory consumption was 68.1MB. Max. memory is 16.1GB. [2023-11-29 06:53:33,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 182.40ms. Allocated memory is still 169.9MB. Free memory was 64.3MB in the beginning and 110.0MB in the end (delta: -45.7MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2023-11-29 06:53:33,421 INFO L158 Benchmark]: Boogie Preprocessor took 162.32ms. Allocated memory is still 169.9MB. Free memory was 110.0MB in the beginning and 90.0MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 06:53:33,421 INFO L158 Benchmark]: RCFGBuilder took 1503.19ms. Allocated memory was 169.9MB in the beginning and 226.5MB in the end (delta: 56.6MB). Free memory was 90.0MB in the beginning and 114.0MB in the end (delta: -24.0MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. [2023-11-29 06:53:33,422 INFO L158 Benchmark]: TraceAbstraction took 47262.42ms. Allocated memory was 226.5MB in the beginning and 826.3MB in the end (delta: 599.8MB). Free memory was 113.0MB in the beginning and 260.4MB in the end (delta: -147.5MB). Peak memory consumption was 453.8MB. Max. memory is 16.1GB. [2023-11-29 06:53:33,423 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 140.5MB. Free memory is still 112.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2337.97ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 91.1MB in the beginning and 64.3MB in the end (delta: 26.8MB). Peak memory consumption was 68.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 182.40ms. Allocated memory is still 169.9MB. Free memory was 64.3MB in the beginning and 110.0MB in the end (delta: -45.7MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 162.32ms. Allocated memory is still 169.9MB. Free memory was 110.0MB in the beginning and 90.0MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * RCFGBuilder took 1503.19ms. Allocated memory was 169.9MB in the beginning and 226.5MB in the end (delta: 56.6MB). Free memory was 90.0MB in the beginning and 114.0MB in the end (delta: -24.0MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. * TraceAbstraction took 47262.42ms. Allocated memory was 226.5MB in the beginning and 826.3MB in the end (delta: 599.8MB). Free memory was 113.0MB in the beginning and 260.4MB in the end (delta: -147.5MB). Peak memory consumption was 453.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7776]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: OutOfMemoryError: Requested array size exceeds VM limit de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: OutOfMemoryError: Requested array size exceeds VM limit: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:669) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-29 06:53:33,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/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_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/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 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:53:35,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:53:35,471 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-29 06:53:35,499 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:53:35,500 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:53:35,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:53:35,530 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:53:35,531 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:53:35,531 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:53:35,532 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:53:35,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:53:35,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:53:35,534 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:53:35,535 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:53:35,535 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:53:35,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:53:35,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:53:35,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:53:35,538 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:53:35,538 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:53:35,539 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:53:35,541 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 06:53:35,541 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 06:53:35,542 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 06:53:35,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:53:35,543 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:53:35,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:53:35,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:53:35,544 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:53:35,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:53:35,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:53:35,545 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:53:35,545 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:53:35,545 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:53:35,546 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 06:53:35,546 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 06:53:35,547 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:53:35,547 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:53:35,548 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:53:35,548 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:53:35,548 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:53:35,549 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 06:53:35,549 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_330c267a-f24e-447f-9f35-e3626919402c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c [2023-11-29 06:53:35,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:53:35,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:53:35,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:53:35,866 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:53:35,866 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:53:35,867 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2023-11-29 06:53:38,591 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:53:39,021 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:53:39,022 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2023-11-29 06:53:39,052 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/data/a3ef30256/615f6e1ba0174b98ab1603bb35a10bb3/FLAG31b471130 [2023-11-29 06:53:39,065 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/data/a3ef30256/615f6e1ba0174b98ab1603bb35a10bb3 [2023-11-29 06:53:39,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:53:39,069 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:53:39,070 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:53:39,070 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:53:39,075 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:53:39,076 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:53:39" (1/1) ... [2023-11-29 06:53:39,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60aa92a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:39, skipping insertion in model container [2023-11-29 06:53:39,077 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:53:39" (1/1) ... [2023-11-29 06:53:39,233 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:53:39,453 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_330c267a-f24e-447f-9f35-e3626919402c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2023-11-29 06:53:39,459 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_330c267a-f24e-447f-9f35-e3626919402c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2023-11-29 06:53:40,099 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,100 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,101 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,102 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,103 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,118 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,119 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,121 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,121 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,123 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,124 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,125 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,125 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,457 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-29 06:53:40,459 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-29 06:53:40,460 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-29 06:53:40,461 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-29 06:53:40,463 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-29 06:53:40,464 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-29 06:53:40,465 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-29 06:53:40,466 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-29 06:53:40,467 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-29 06:53:40,468 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-29 06:53:40,639 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,640 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,645 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,652 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,715 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,716 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,717 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,717 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,717 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,718 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,718 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,719 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,719 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,720 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,720 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,720 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,721 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,723 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,724 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,724 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,724 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,728 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,728 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,735 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,736 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,737 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:53:40,786 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 06:53:40,827 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:53:40,839 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_330c267a-f24e-447f-9f35-e3626919402c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2023-11-29 06:53:40,840 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_330c267a-f24e-447f-9f35-e3626919402c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2023-11-29 06:53:40,878 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,878 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,879 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,879 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,880 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,885 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,886 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,887 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,887 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,888 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,889 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,889 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,890 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,924 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-29 06:53:40,925 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-29 06:53:40,926 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-29 06:53:40,927 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-29 06:53:40,928 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-29 06:53:40,928 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-29 06:53:40,929 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-29 06:53:40,929 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-29 06:53:40,930 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-29 06:53:40,930 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-29 06:53:40,968 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,969 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,970 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,974 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,998 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:40,999 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,000 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,000 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,000 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,001 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,001 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,002 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,002 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,002 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,003 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,003 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,003 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,004 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,004 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,005 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,005 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,007 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,008 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,014 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,015 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,015 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:53:41,036 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:53:41,067 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_330c267a-f24e-447f-9f35-e3626919402c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2023-11-29 06:53:41,068 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_330c267a-f24e-447f-9f35-e3626919402c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2023-11-29 06:53:41,108 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,108 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,109 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,109 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,110 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,116 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,117 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,117 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,118 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,119 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,120 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,120 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,120 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,159 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-29 06:53:41,160 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-29 06:53:41,160 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-29 06:53:41,161 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-29 06:53:41,162 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-29 06:53:41,163 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-29 06:53:41,163 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-29 06:53:41,164 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-29 06:53:41,164 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-29 06:53:41,165 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-29 06:53:41,200 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,200 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,201 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,205 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,211 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] [2023-11-29 06:53:41,226 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,227 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,227 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,227 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,228 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,228 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,228 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,229 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,229 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,230 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,230 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,230 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,231 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,231 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,232 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,232 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,233 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,235 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,236 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,241 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,242 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,242 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:53:41,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:53:41,506 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:53:41,506 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:53:41,506 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:53:41,506 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:53:41,507 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:53:41,507 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:53:41,507 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:53:41,507 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:53:41,507 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:53:41,507 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:53:41,507 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:53:41,507 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:53:41,507 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:53:41,508 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:53:41,508 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:53:41,516 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:53:41,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:41 WrapperNode [2023-11-29 06:53:41,516 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:53:41,517 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:53:41,517 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:53:41,518 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:53:41,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:41" (1/1) ... [2023-11-29 06:53:41,602 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:41" (1/1) ... [2023-11-29 06:53:41,679 INFO L138 Inliner]: procedures = 716, calls = 1888, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 914 [2023-11-29 06:53:41,679 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:53:41,680 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:53:41,680 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:53:41,680 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:53:41,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:41" (1/1) ... [2023-11-29 06:53:41,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:41" (1/1) ... [2023-11-29 06:53:41,702 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:41" (1/1) ... [2023-11-29 06:53:41,781 INFO L175 MemorySlicer]: Split 335 memory accesses to 7 slices as follows [2, 236, 3, 17, 18, 56, 3]. 70 percent of accesses are in the largest equivalence class. The 251 initializations are split as follows [2, 236, 1, 4, 5, 0, 3]. The 14 writes are split as follows [0, 0, 1, 3, 6, 4, 0]. [2023-11-29 06:53:41,781 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:41" (1/1) ... [2023-11-29 06:53:41,782 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:41" (1/1) ... [2023-11-29 06:53:41,822 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:41" (1/1) ... [2023-11-29 06:53:41,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:41" (1/1) ... [2023-11-29 06:53:41,845 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:41" (1/1) ... [2023-11-29 06:53:41,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:41" (1/1) ... [2023-11-29 06:53:41,870 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:53:41,871 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:53:41,872 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:53:41,872 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:53:41,872 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:41" (1/1) ... [2023-11-29 06:53:41,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:53:41,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:53:41,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:53:41,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:53:41,934 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2023-11-29 06:53:41,934 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2023-11-29 06:53:41,934 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-29 06:53:41,935 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-29 06:53:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-29 06:53:41,935 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-29 06:53:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:53:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-29 06:53:41,935 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-29 06:53:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-29 06:53:41,935 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-29 06:53:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-29 06:53:41,936 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-29 06:53:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 06:53:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 06:53:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 06:53:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 06:53:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-29 06:53:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-11-29 06:53:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-11-29 06:53:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-11-29 06:53:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-11-29 06:53:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-11-29 06:53:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-11-29 06:53:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2023-11-29 06:53:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2023-11-29 06:53:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2023-11-29 06:53:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#0 [2023-11-29 06:53:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#1 [2023-11-29 06:53:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#2 [2023-11-29 06:53:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#3 [2023-11-29 06:53:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#4 [2023-11-29 06:53:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#5 [2023-11-29 06:53:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#6 [2023-11-29 06:53:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-29 06:53:41,938 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-29 06:53:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-29 06:53:41,938 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-29 06:53:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 06:53:41,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 06:53:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-29 06:53:41,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-29 06:53:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 06:53:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:53:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 06:53:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 06:53:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 06:53:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 06:53:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 06:53:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-29 06:53:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-29 06:53:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-29 06:53:41,940 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-29 06:53:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-29 06:53:41,940 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-29 06:53:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:53:41,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:53:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-29 06:53:41,940 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-29 06:53:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 06:53:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 06:53:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 06:53:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 06:53:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-11-29 06:53:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-11-29 06:53:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2023-11-29 06:53:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2023-11-29 06:53:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2023-11-29 06:53:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2023-11-29 06:53:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3 [2023-11-29 06:53:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4 [2023-11-29 06:53:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#5 [2023-11-29 06:53:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#6 [2023-11-29 06:53:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-29 06:53:41,942 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-29 06:53:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-29 06:53:41,942 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-29 06:53:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-29 06:53:41,942 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-29 06:53:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-29 06:53:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-29 06:53:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 06:53:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 06:53:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-29 06:53:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-29 06:53:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:53:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 06:53:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 06:53:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 06:53:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 06:53:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 06:53:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-29 06:53:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-29 06:53:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2023-11-29 06:53:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2023-11-29 06:53:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2023-11-29 06:53:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#3 [2023-11-29 06:53:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#4 [2023-11-29 06:53:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#5 [2023-11-29 06:53:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#6 [2023-11-29 06:53:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-11-29 06:53:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-11-29 06:53:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-11-29 06:53:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-11-29 06:53:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-11-29 06:53:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-11-29 06:53:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2023-11-29 06:53:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-29 06:53:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-29 06:53:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-29 06:53:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-29 06:53:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-29 06:53:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-29 06:53:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-29 06:53:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-29 06:53:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-29 06:53:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-29 06:53:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-29 06:53:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-29 06:53:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-29 06:53:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-29 06:53:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-29 06:53:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-29 06:53:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-29 06:53:42,297 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:53:42,300 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:53:44,506 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:53:44,700 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:53:44,701 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-29 06:53:44,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:53:44 BoogieIcfgContainer [2023-11-29 06:53:44,701 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:53:44,704 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:53:44,704 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:53:44,707 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:53:44,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:53:39" (1/3) ... [2023-11-29 06:53:44,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8334e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:53:44, skipping insertion in model container [2023-11-29 06:53:44,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:41" (2/3) ... [2023-11-29 06:53:44,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8334e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:53:44, skipping insertion in model container [2023-11-29 06:53:44,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:53:44" (3/3) ... [2023-11-29 06:53:44,710 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2023-11-29 06:53:44,728 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:53:44,729 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 06:53:44,785 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:53:44,791 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;@4c7fe81b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:53:44,791 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 06:53:44,797 INFO L276 IsEmpty]: Start isEmpty. Operand has 316 states, 176 states have (on average 1.3068181818181819) internal successors, (230), 179 states have internal predecessors, (230), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 06:53:44,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 06:53:44,812 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:53:44,813 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 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] [2023-11-29 06:53:44,814 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:53:44,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:53:44,818 INFO L85 PathProgramCache]: Analyzing trace with hash -843813417, now seen corresponding path program 1 times [2023-11-29 06:53:44,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:53:44,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355584968] [2023-11-29 06:53:44,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:44,836 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:53:44,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:53:44,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:53:44,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 06:53:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:45,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 1305 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:53:45,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:53:45,824 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-11-29 06:53:45,824 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:53:45,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:53:45,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355584968] [2023-11-29 06:53:45,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355584968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:53:45,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:53:45,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:53:45,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700729707] [2023-11-29 06:53:45,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:53:45,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:53:45,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:53:45,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:53:45,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:53:45,866 INFO L87 Difference]: Start difference. First operand has 316 states, 176 states have (on average 1.3068181818181819) internal successors, (230), 179 states have internal predecessors, (230), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 06:53:48,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:53:50,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:53:52,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:53:53,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:53:53,104 INFO L93 Difference]: Finished difference Result 625 states and 1005 transitions. [2023-11-29 06:53:53,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:53:53,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 96 [2023-11-29 06:53:53,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:53:53,120 INFO L225 Difference]: With dead ends: 625 [2023-11-29 06:53:53,120 INFO L226 Difference]: Without dead ends: 315 [2023-11-29 06:53:53,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:53:53,131 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 44 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:53:53,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1526 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-11-29 06:53:53,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-29 06:53:53,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2023-11-29 06:53:53,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 176 states have (on average 1.2556818181818181) internal successors, (221), 179 states have internal predecessors, (221), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (119), 111 states have call predecessors, (119), 111 states have call successors, (119) [2023-11-29 06:53:53,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 453 transitions. [2023-11-29 06:53:53,209 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 453 transitions. Word has length 96 [2023-11-29 06:53:53,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:53:53,210 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 453 transitions. [2023-11-29 06:53:53,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 06:53:53,211 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 453 transitions. [2023-11-29 06:53:53,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 06:53:53,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:53:53,218 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 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] [2023-11-29 06:53:53,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:53:53,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:53:53,423 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:53:53,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:53:53,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1072342056, now seen corresponding path program 1 times [2023-11-29 06:53:53,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:53:53,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727773616] [2023-11-29 06:53:53,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:53,426 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:53:53,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:53:53,428 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:53:53,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 06:53:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:54,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 1335 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:53:54,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:53:54,342 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-11-29 06:53:54,342 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:53:54,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:53:54,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1727773616] [2023-11-29 06:53:54,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1727773616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:53:54,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:53:54,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:53:54,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309230447] [2023-11-29 06:53:54,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:53:54,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:53:54,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:53:54,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:53:54,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:53:54,346 INFO L87 Difference]: Start difference. First operand 315 states and 453 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-29 06:53:56,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:53:58,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:01,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:03,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:05,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:06,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:06,835 INFO L93 Difference]: Finished difference Result 620 states and 912 transitions. [2023-11-29 06:54:06,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:54:06,836 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 104 [2023-11-29 06:54:06,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:06,842 INFO L225 Difference]: With dead ends: 620 [2023-11-29 06:54:06,842 INFO L226 Difference]: Without dead ends: 336 [2023-11-29 06:54:06,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:54:06,846 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 96 mSDsluCounter, 1811 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:06,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2193 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2023-11-29 06:54:06,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-11-29 06:54:06,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 334. [2023-11-29 06:54:06,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 192 states have (on average 1.265625) internal successors, (243), 195 states have internal predecessors, (243), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2023-11-29 06:54:06,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 490 transitions. [2023-11-29 06:54:06,891 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 490 transitions. Word has length 104 [2023-11-29 06:54:06,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:06,892 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 490 transitions. [2023-11-29 06:54:06,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-29 06:54:06,892 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 490 transitions. [2023-11-29 06:54:06,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 06:54:06,896 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:06,896 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 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 06:54:06,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 06:54:07,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:54:07,097 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:54:07,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:07,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1116500767, now seen corresponding path program 1 times [2023-11-29 06:54:07,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:54:07,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280215111] [2023-11-29 06:54:07,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:07,100 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:54:07,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:54:07,101 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:54:07,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 06:54:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:07,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:54:07,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:08,094 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-11-29 06:54:08,094 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:54:08,094 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:54:08,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280215111] [2023-11-29 06:54:08,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280215111] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:54:08,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:54:08,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:54:08,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812604863] [2023-11-29 06:54:08,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:54:08,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:54:08,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:54:08,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:54:08,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:54:08,097 INFO L87 Difference]: Start difference. First operand 334 states and 490 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-29 06:54:10,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:12,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:15,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:17,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:18,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:18,011 INFO L93 Difference]: Finished difference Result 643 states and 960 transitions. [2023-11-29 06:54:18,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:54:18,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 117 [2023-11-29 06:54:18,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:18,016 INFO L225 Difference]: With dead ends: 643 [2023-11-29 06:54:18,016 INFO L226 Difference]: Without dead ends: 340 [2023-11-29 06:54:18,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:54:18,019 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 63 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:18,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1867 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2023-11-29 06:54:18,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-11-29 06:54:18,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 334. [2023-11-29 06:54:18,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 192 states have (on average 1.265625) internal successors, (243), 195 states have internal predecessors, (243), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2023-11-29 06:54:18,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 490 transitions. [2023-11-29 06:54:18,048 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 490 transitions. Word has length 117 [2023-11-29 06:54:18,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:18,049 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 490 transitions. [2023-11-29 06:54:18,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-29 06:54:18,050 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 490 transitions. [2023-11-29 06:54:18,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-29 06:54:18,052 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:18,053 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:18,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 06:54:18,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:54:18,253 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:54:18,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:18,254 INFO L85 PathProgramCache]: Analyzing trace with hash -2126758147, now seen corresponding path program 1 times [2023-11-29 06:54:18,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:54:18,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760785523] [2023-11-29 06:54:18,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:18,256 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:54:18,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:54:18,257 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:54:18,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 06:54:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:19,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 1490 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:54:19,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:19,391 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-29 06:54:19,391 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:54:19,391 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:54:19,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760785523] [2023-11-29 06:54:19,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760785523] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:54:19,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:54:19,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:54:19,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354056513] [2023-11-29 06:54:19,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:54:19,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:54:19,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:54:19,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:54:19,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:54:19,393 INFO L87 Difference]: Start difference. First operand 334 states and 490 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 06:54:21,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:24,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:26,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:28,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:30,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:33,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:34,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:34,660 INFO L93 Difference]: Finished difference Result 665 states and 985 transitions. [2023-11-29 06:54:34,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:54:34,661 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 133 [2023-11-29 06:54:34,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:34,664 INFO L225 Difference]: With dead ends: 665 [2023-11-29 06:54:34,665 INFO L226 Difference]: Without dead ends: 362 [2023-11-29 06:54:34,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:54:34,668 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 135 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:34,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2545 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 15.1s Time] [2023-11-29 06:54:34,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2023-11-29 06:54:34,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 346. [2023-11-29 06:54:34,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 202 states have (on average 1.2722772277227723) internal successors, (257), 205 states have internal predecessors, (257), 116 states have call successors, (116), 25 states have call predecessors, (116), 26 states have return successors, (133), 115 states have call predecessors, (133), 114 states have call successors, (133) [2023-11-29 06:54:34,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 506 transitions. [2023-11-29 06:54:34,693 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 506 transitions. Word has length 133 [2023-11-29 06:54:34,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:34,694 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 506 transitions. [2023-11-29 06:54:34,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 06:54:34,694 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 506 transitions. [2023-11-29 06:54:34,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 06:54:34,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:34,697 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:34,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-29 06:54:34,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:54:34,898 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:54:34,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:34,898 INFO L85 PathProgramCache]: Analyzing trace with hash -2036214362, now seen corresponding path program 1 times [2023-11-29 06:54:34,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:54:34,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1689082936] [2023-11-29 06:54:34,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:34,900 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:54:34,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:54:34,901 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:54:34,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 06:54:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:35,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 1600 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:54:35,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:36,534 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2023-11-29 06:54:36,534 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:54:36,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:54:36,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1689082936] [2023-11-29 06:54:36,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1689082936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:54:36,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:54:36,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:54:36,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857114696] [2023-11-29 06:54:36,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:54:36,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:54:36,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:54:36,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:54:36,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:54:36,537 INFO L87 Difference]: Start difference. First operand 346 states and 506 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-29 06:54:38,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:41,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:54:43,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:45,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:48,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:51,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:51,682 INFO L93 Difference]: Finished difference Result 687 states and 1028 transitions. [2023-11-29 06:54:51,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:54:51,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 146 [2023-11-29 06:54:51,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:51,688 INFO L225 Difference]: With dead ends: 687 [2023-11-29 06:54:51,688 INFO L226 Difference]: Without dead ends: 372 [2023-11-29 06:54:51,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:54:51,691 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 18 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1916 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:51,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 1916 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2023-11-29 06:54:51,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-11-29 06:54:51,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 354. [2023-11-29 06:54:51,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 210 states have (on average 1.2714285714285714) internal successors, (267), 213 states have internal predecessors, (267), 116 states have call successors, (116), 25 states have call predecessors, (116), 26 states have return successors, (133), 115 states have call predecessors, (133), 114 states have call successors, (133) [2023-11-29 06:54:51,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 516 transitions. [2023-11-29 06:54:51,727 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 516 transitions. Word has length 146 [2023-11-29 06:54:51,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:51,728 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 516 transitions. [2023-11-29 06:54:51,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-29 06:54:51,728 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 516 transitions. [2023-11-29 06:54:51,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 06:54:51,730 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:51,731 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:51,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 06:54:51,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:54:51,931 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:54:51,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:51,932 INFO L85 PathProgramCache]: Analyzing trace with hash -497874332, now seen corresponding path program 1 times [2023-11-29 06:54:51,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:54:51,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589378209] [2023-11-29 06:54:51,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:51,933 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:54:51,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:54:51,934 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:54:51,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 06:54:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:52,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 1598 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 06:54:52,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:57,746 WARN L876 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_25| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_1| (_ BitVec 64))) (not (= (select (select |c_#memory_$Pointer$#5.base| |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_25|) (bvadd |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_1| (_ bv80 64))) (_ bv0 64)))) (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_25| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_1| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$#5.offset| |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_25|) (bvadd |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_1| (_ bv80 64))))))) is different from true [2023-11-29 06:55:02,000 WARN L876 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_26| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_2| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$#5.offset| |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_26|) (bvadd |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_2| (_ bv80 64)))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_26| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_2| (_ BitVec 64))) (not (= (select (select |c_#memory_$Pointer$#5.base| |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_26|) (bvadd |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_2| (_ bv80 64))) (_ bv0 64))))) is different from true [2023-11-29 06:55:02,214 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 31 treesize of output 19 [2023-11-29 06:55:02,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-29 06:55:02,273 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 4 not checked. [2023-11-29 06:55:02,274 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:07,032 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:55:07,032 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 30 treesize of output 29 [2023-11-29 06:55:07,075 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2023-11-29 06:55:07,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19 [2023-11-29 06:55:07,214 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 06:55:07,215 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:55:07,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1589378209] [2023-11-29 06:55:07,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1589378209] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:55:07,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:55:07,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 14 [2023-11-29 06:55:07,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002206732] [2023-11-29 06:55:07,216 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:07,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:55:07,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:55:07,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:55:07,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=108, Unknown=2, NotChecked=42, Total=182 [2023-11-29 06:55:07,217 INFO L87 Difference]: Start difference. First operand 354 states and 516 transitions. Second operand has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-29 06:55:10,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:12,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:15,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:18,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:20,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:23,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:26,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:28,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:31,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:37,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:41,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:45,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:49,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:53,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:55,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:55,918 INFO L93 Difference]: Finished difference Result 767 states and 1139 transitions. [2023-11-29 06:55:55,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 06:55:55,920 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 146 [2023-11-29 06:55:55,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:55,924 INFO L225 Difference]: With dead ends: 767 [2023-11-29 06:55:55,924 INFO L226 Difference]: Without dead ends: 440 [2023-11-29 06:55:55,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 277 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=138, Invalid=420, Unknown=2, NotChecked=90, Total=650 [2023-11-29 06:55:55,927 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 156 mSDsluCounter, 2936 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 18 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 3352 SdHoareTripleChecker+Invalid, 2053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 1170 IncrementalHoareTripleChecker+Unchecked, 47.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:55,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 3352 Invalid, 2053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 860 Invalid, 5 Unknown, 1170 Unchecked, 47.7s Time] [2023-11-29 06:55:55,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2023-11-29 06:55:55,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 400. [2023-11-29 06:55:55,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 245 states have (on average 1.2693877551020407) internal successors, (311), 248 states have internal predecessors, (311), 124 states have call successors, (124), 28 states have call predecessors, (124), 29 states have return successors, (151), 123 states have call predecessors, (151), 122 states have call successors, (151) [2023-11-29 06:55:55,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 586 transitions. [2023-11-29 06:55:55,953 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 586 transitions. Word has length 146 [2023-11-29 06:55:55,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:55,954 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 586 transitions. [2023-11-29 06:55:55,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-29 06:55:55,954 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 586 transitions. [2023-11-29 06:55:55,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 06:55:55,956 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:55,957 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:55,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-29 06:55:56,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:55:56,157 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:55:56,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:56,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1782685067, now seen corresponding path program 1 times [2023-11-29 06:55:56,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:55:56,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246538242] [2023-11-29 06:55:56,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:56,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:55:56,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:55:56,160 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:55:56,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 06:55:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:57,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 1601 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:55:57,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:57,390 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-29 06:55:57,391 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:55:57,391 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:55:57,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246538242] [2023-11-29 06:55:57,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246538242] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:55:57,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:55:57,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:55:57,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535076783] [2023-11-29 06:55:57,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:55:57,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:55:57,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:55:57,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:55:57,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:55:57,393 INFO L87 Difference]: Start difference. First operand 400 states and 586 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 06:56:00,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:02,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:05,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:08,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:10,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:11,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:11,686 INFO L93 Difference]: Finished difference Result 726 states and 1082 transitions. [2023-11-29 06:56:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:56:11,687 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 149 [2023-11-29 06:56:11,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:11,691 INFO L225 Difference]: With dead ends: 726 [2023-11-29 06:56:11,691 INFO L226 Difference]: Without dead ends: 402 [2023-11-29 06:56:11,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:56:11,693 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 91 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 2227 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:11,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 2227 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 14.2s Time] [2023-11-29 06:56:11,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2023-11-29 06:56:11,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2023-11-29 06:56:11,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 246 states have (on average 1.2682926829268293) internal successors, (312), 250 states have internal predecessors, (312), 124 states have call successors, (124), 28 states have call predecessors, (124), 30 states have return successors, (157), 123 states have call predecessors, (157), 122 states have call successors, (157) [2023-11-29 06:56:11,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 593 transitions. [2023-11-29 06:56:11,718 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 593 transitions. Word has length 149 [2023-11-29 06:56:11,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:11,719 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 593 transitions. [2023-11-29 06:56:11,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 06:56:11,719 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 593 transitions. [2023-11-29 06:56:11,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-29 06:56:11,721 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:11,721 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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 06:56:11,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-29 06:56:11,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:56:11,922 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:11,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:11,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1257684261, now seen corresponding path program 1 times [2023-11-29 06:56:11,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:56:11,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940590389] [2023-11-29 06:56:11,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:11,924 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:56:11,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:56:11,925 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:56:11,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 06:56:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:13,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 1881 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:56:13,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:56:13,675 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-11-29 06:56:13,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:56:13,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:56:13,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940590389] [2023-11-29 06:56:13,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940590389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:13,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:13,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:56:13,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947492412] [2023-11-29 06:56:13,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:13,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:56:13,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:56:13,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:56:13,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:56:13,678 INFO L87 Difference]: Start difference. First operand 402 states and 593 transitions. Second operand has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-29 06:56:16,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:18,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:21,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:24,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:26,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:29,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:30,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:30,852 INFO L93 Difference]: Finished difference Result 731 states and 1097 transitions. [2023-11-29 06:56:30,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:56:30,854 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 191 [2023-11-29 06:56:30,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:30,858 INFO L225 Difference]: With dead ends: 731 [2023-11-29 06:56:30,858 INFO L226 Difference]: Without dead ends: 405 [2023-11-29 06:56:30,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:56:30,861 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 110 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 2553 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:30,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 2553 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 17.0s Time] [2023-11-29 06:56:30,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2023-11-29 06:56:30,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 403. [2023-11-29 06:56:30,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 247 states have (on average 1.2672064777327936) internal successors, (313), 251 states have internal predecessors, (313), 124 states have call successors, (124), 28 states have call predecessors, (124), 30 states have return successors, (157), 123 states have call predecessors, (157), 122 states have call successors, (157) [2023-11-29 06:56:30,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 594 transitions. [2023-11-29 06:56:30,895 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 594 transitions. Word has length 191 [2023-11-29 06:56:30,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:30,895 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 594 transitions. [2023-11-29 06:56:30,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-29 06:56:30,896 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 594 transitions. [2023-11-29 06:56:30,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-11-29 06:56:30,899 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:30,900 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 06:56:30,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-29 06:56:31,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:56:31,100 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:31,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:31,101 INFO L85 PathProgramCache]: Analyzing trace with hash -787809869, now seen corresponding path program 1 times [2023-11-29 06:56:31,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:56:31,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378387508] [2023-11-29 06:56:31,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:31,104 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:56:31,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:56:31,105 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:56:31,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-29 06:56:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:32,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 1866 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:56:32,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:56:33,049 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 06:56:33,050 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:56:33,050 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:56:33,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378387508] [2023-11-29 06:56:33,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [378387508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:33,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:33,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:56:33,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966278975] [2023-11-29 06:56:33,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:33,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:56:33,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:56:33,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:56:33,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:56:33,053 INFO L87 Difference]: Start difference. First operand 403 states and 594 transitions. Second operand has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2023-11-29 06:56:35,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:38,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:41,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:43,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:46,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:49,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:52,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:55,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:57,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:57,077 INFO L93 Difference]: Finished difference Result 730 states and 1089 transitions. [2023-11-29 06:56:57,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:56:57,078 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) Word has length 205 [2023-11-29 06:56:57,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:57,081 INFO L225 Difference]: With dead ends: 730 [2023-11-29 06:56:57,082 INFO L226 Difference]: Without dead ends: 403 [2023-11-29 06:56:57,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:56:57,084 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 182 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 3203 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:57,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 3203 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 23.9s Time] [2023-11-29 06:56:57,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-11-29 06:56:57,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 400. [2023-11-29 06:56:57,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 245 states have (on average 1.2693877551020407) internal successors, (311), 248 states have internal predecessors, (311), 124 states have call successors, (124), 28 states have call predecessors, (124), 29 states have return successors, (149), 123 states have call predecessors, (149), 122 states have call successors, (149) [2023-11-29 06:56:57,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 584 transitions. [2023-11-29 06:56:57,115 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 584 transitions. Word has length 205 [2023-11-29 06:56:57,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:57,116 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 584 transitions. [2023-11-29 06:56:57,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2023-11-29 06:56:57,117 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 584 transitions. [2023-11-29 06:56:57,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-11-29 06:56:57,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:57,121 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:56:57,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-29 06:56:57,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:56:57,322 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:57,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:57,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1979337686, now seen corresponding path program 1 times [2023-11-29 06:56:57,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:56:57,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200984117] [2023-11-29 06:56:57,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:57,324 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:56:57,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:56:57,325 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:56:57,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 06:56:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:59,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 1976 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:56:59,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:56:59,465 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2023-11-29 06:56:59,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:56:59,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:56:59,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200984117] [2023-11-29 06:56:59,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1200984117] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:59,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:59,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:56:59,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370823992] [2023-11-29 06:56:59,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:59,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:56:59,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:56:59,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:56:59,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:56:59,467 INFO L87 Difference]: Start difference. First operand 400 states and 584 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2023-11-29 06:57:02,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:05,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:07,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:10,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:13,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:17,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:20,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:21,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:21,563 INFO L93 Difference]: Finished difference Result 718 states and 1063 transitions. [2023-11-29 06:57:21,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:57:21,565 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) Word has length 218 [2023-11-29 06:57:21,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:21,569 INFO L225 Difference]: With dead ends: 718 [2023-11-29 06:57:21,569 INFO L226 Difference]: Without dead ends: 402 [2023-11-29 06:57:21,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:57:21,571 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 119 mSDsluCounter, 2557 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:21,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 2948 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 22.0s Time] [2023-11-29 06:57:21,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2023-11-29 06:57:21,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2023-11-29 06:57:21,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 246 states have (on average 1.2682926829268293) internal successors, (312), 250 states have internal predecessors, (312), 124 states have call successors, (124), 28 states have call predecessors, (124), 30 states have return successors, (153), 123 states have call predecessors, (153), 122 states have call successors, (153) [2023-11-29 06:57:21,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 589 transitions. [2023-11-29 06:57:21,592 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 589 transitions. Word has length 218 [2023-11-29 06:57:21,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:21,593 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 589 transitions. [2023-11-29 06:57:21,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2023-11-29 06:57:21,593 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 589 transitions. [2023-11-29 06:57:21,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2023-11-29 06:57:21,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:21,596 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:57:21,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-29 06:57:21,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:57:21,797 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:57:21,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:21,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1050348075, now seen corresponding path program 1 times [2023-11-29 06:57:21,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:57:21,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619982315] [2023-11-29 06:57:21,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:21,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:57:21,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:57:21,802 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:57:21,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-29 06:57:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:24,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 2187 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:57:24,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:57:24,049 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2023-11-29 06:57:24,050 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:57:24,050 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:57:24,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619982315] [2023-11-29 06:57:24,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619982315] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:57:24,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:57:24,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:57:24,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742608648] [2023-11-29 06:57:24,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:57:24,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:57:24,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:57:24,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:57:24,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:57:24,052 INFO L87 Difference]: Start difference. First operand 402 states and 589 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-29 06:57:26,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:29,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:30,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:30,100 INFO L93 Difference]: Finished difference Result 551 states and 790 transitions. [2023-11-29 06:57:30,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:57:30,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 249 [2023-11-29 06:57:30,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:30,105 INFO L225 Difference]: With dead ends: 551 [2023-11-29 06:57:30,105 INFO L226 Difference]: Without dead ends: 403 [2023-11-29 06:57:30,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:57:30,107 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 0 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:30,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 829 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-11-29 06:57:30,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-11-29 06:57:30,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2023-11-29 06:57:30,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 247 states have (on average 1.2672064777327936) internal successors, (313), 251 states have internal predecessors, (313), 124 states have call successors, (124), 28 states have call predecessors, (124), 30 states have return successors, (153), 123 states have call predecessors, (153), 122 states have call successors, (153) [2023-11-29 06:57:30,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 590 transitions. [2023-11-29 06:57:30,139 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 590 transitions. Word has length 249 [2023-11-29 06:57:30,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:30,139 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 590 transitions. [2023-11-29 06:57:30,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-29 06:57:30,140 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 590 transitions. [2023-11-29 06:57:30,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-29 06:57:30,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:30,143 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:57:30,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-29 06:57:30,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:57:30,343 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:57:30,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:30,344 INFO L85 PathProgramCache]: Analyzing trace with hash 2016300725, now seen corresponding path program 1 times [2023-11-29 06:57:30,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:57:30,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [237854708] [2023-11-29 06:57:30,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:30,347 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:57:30,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:57:30,348 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:57:30,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-29 06:57:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:32,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 2269 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:57:32,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:57:32,127 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2023-11-29 06:57:32,128 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:57:32,128 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:57:32,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [237854708] [2023-11-29 06:57:32,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [237854708] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:57:32,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:57:32,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:57:32,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596595802] [2023-11-29 06:57:32,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:57:32,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:57:32,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:57:32,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:57:32,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:57:32,140 INFO L87 Difference]: Start difference. First operand 403 states and 590 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-29 06:57:34,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:37,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:40,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:41,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:41,080 INFO L93 Difference]: Finished difference Result 763 states and 1159 transitions. [2023-11-29 06:57:41,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:57:41,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 264 [2023-11-29 06:57:41,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:41,085 INFO L225 Difference]: With dead ends: 763 [2023-11-29 06:57:41,085 INFO L226 Difference]: Without dead ends: 407 [2023-11-29 06:57:41,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:57:41,088 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 6 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:41,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1232 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2023-11-29 06:57:41,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-11-29 06:57:41,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 404. [2023-11-29 06:57:41,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 248 states have (on average 1.2661290322580645) internal successors, (314), 252 states have internal predecessors, (314), 124 states have call successors, (124), 28 states have call predecessors, (124), 30 states have return successors, (153), 123 states have call predecessors, (153), 122 states have call successors, (153) [2023-11-29 06:57:41,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 591 transitions. [2023-11-29 06:57:41,110 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 591 transitions. Word has length 264 [2023-11-29 06:57:41,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:41,110 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 591 transitions. [2023-11-29 06:57:41,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-29 06:57:41,111 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 591 transitions. [2023-11-29 06:57:41,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-11-29 06:57:41,112 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:41,113 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:57:41,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-29 06:57:41,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:57:41,313 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:57:41,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:41,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1774514162, now seen corresponding path program 1 times [2023-11-29 06:57:41,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:57:41,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566924644] [2023-11-29 06:57:41,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:41,316 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:57:41,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:57:41,317 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:57:41,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-29 06:57:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:42,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 2051 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:57:42,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:57:42,982 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-29 06:57:42,982 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:57:42,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:57:42,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566924644] [2023-11-29 06:57:42,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566924644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:57:42,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:57:42,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:57:42,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286973625] [2023-11-29 06:57:42,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:57:42,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:57:42,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:57:42,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:57:42,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:57:42,984 INFO L87 Difference]: Start difference. First operand 404 states and 591 transitions. Second operand has 10 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 3 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-29 06:57:46,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:49,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:51,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:54,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:57,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:00,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:03,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:06,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:09,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:10,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:58:10,262 INFO L93 Difference]: Finished difference Result 752 states and 1117 transitions. [2023-11-29 06:58:10,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:58:10,262 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 3 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 238 [2023-11-29 06:58:10,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:58:10,267 INFO L225 Difference]: With dead ends: 752 [2023-11-29 06:58:10,267 INFO L226 Difference]: Without dead ends: 421 [2023-11-29 06:58:10,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:58:10,269 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 5 mSDsluCounter, 3086 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3482 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:58:10,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3482 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 27.2s Time] [2023-11-29 06:58:10,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2023-11-29 06:58:10,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 416. [2023-11-29 06:58:10,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 257 states have (on average 1.2568093385214008) internal successors, (323), 262 states have internal predecessors, (323), 124 states have call successors, (124), 28 states have call predecessors, (124), 33 states have return successors, (168), 125 states have call predecessors, (168), 122 states have call successors, (168) [2023-11-29 06:58:10,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 615 transitions. [2023-11-29 06:58:10,298 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 615 transitions. Word has length 238 [2023-11-29 06:58:10,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:58:10,298 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 615 transitions. [2023-11-29 06:58:10,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 3 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-29 06:58:10,298 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 615 transitions. [2023-11-29 06:58:10,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-29 06:58:10,300 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:58:10,300 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:58:10,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-11-29 06:58:10,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:58:10,501 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:58:10,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:58:10,502 INFO L85 PathProgramCache]: Analyzing trace with hash -736928332, now seen corresponding path program 1 times [2023-11-29 06:58:10,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:58:10,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118468385] [2023-11-29 06:58:10,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:58:10,504 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:58:10,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:58:10,505 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:58:10,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-29 06:58:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:12,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 2036 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:58:12,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:58:12,915 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2023-11-29 06:58:12,916 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:58:12,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:58:12,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118468385] [2023-11-29 06:58:12,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118468385] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:58:12,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:58:12,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 06:58:12,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561321902] [2023-11-29 06:58:12,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:58:12,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:58:12,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:58:12,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:58:12,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:58:12,918 INFO L87 Difference]: Start difference. First operand 416 states and 615 transitions. Second operand has 11 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 6 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2023-11-29 06:58:16,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:19,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:21,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:24,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:26,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:29,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:32,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:34,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:37,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:39,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:58:39,440 INFO L93 Difference]: Finished difference Result 767 states and 1148 transitions. [2023-11-29 06:58:39,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:58:39,441 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 6 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) Word has length 234 [2023-11-29 06:58:39,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:58:39,445 INFO L225 Difference]: With dead ends: 767 [2023-11-29 06:58:39,446 INFO L226 Difference]: Without dead ends: 436 [2023-11-29 06:58:39,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:58:39,449 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 171 mSDsluCounter, 3160 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 3534 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:58:39,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 3534 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 26.4s Time] [2023-11-29 06:58:39,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2023-11-29 06:58:39,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2023-11-29 06:58:39,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 274 states have (on average 1.2627737226277371) internal successors, (346), 278 states have internal predecessors, (346), 125 states have call successors, (125), 28 states have call predecessors, (125), 33 states have return successors, (170), 127 states have call predecessors, (170), 123 states have call successors, (170) [2023-11-29 06:58:39,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 641 transitions. [2023-11-29 06:58:39,481 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 641 transitions. Word has length 234 [2023-11-29 06:58:39,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:58:39,488 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 641 transitions. [2023-11-29 06:58:39,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 6 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2023-11-29 06:58:39,489 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 641 transitions. [2023-11-29 06:58:39,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-11-29 06:58:39,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:58:39,491 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:58:39,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-11-29 06:58:39,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:58:39,695 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:58:39,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:58:39,696 INFO L85 PathProgramCache]: Analyzing trace with hash 390906016, now seen corresponding path program 1 times [2023-11-29 06:58:39,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:58:39,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089224573] [2023-11-29 06:58:39,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:58:39,698 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:58:39,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:58:39,699 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:58:39,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-29 06:58:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:42,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 2256 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:58:42,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:58:42,400 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2023-11-29 06:58:42,400 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:58:42,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:58:42,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2089224573] [2023-11-29 06:58:42,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2089224573] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:58:42,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:58:42,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:58:42,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995735755] [2023-11-29 06:58:42,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:58:42,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:58:42,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:58:42,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:58:42,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:58:42,404 INFO L87 Difference]: Start difference. First operand 434 states and 641 transitions. Second operand has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-29 06:58:45,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:48,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:51,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:53,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:56,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:58,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:01,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:04,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:05,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:59:05,720 INFO L93 Difference]: Finished difference Result 789 states and 1181 transitions. [2023-11-29 06:59:05,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:59:05,721 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 260 [2023-11-29 06:59:05,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:59:05,724 INFO L225 Difference]: With dead ends: 789 [2023-11-29 06:59:05,725 INFO L226 Difference]: Without dead ends: 440 [2023-11-29 06:59:05,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:59:05,727 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 138 mSDsluCounter, 2872 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 3256 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:59:05,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 3256 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 23.2s Time] [2023-11-29 06:59:05,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2023-11-29 06:59:05,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 434. [2023-11-29 06:59:05,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 274 states have (on average 1.2627737226277371) internal successors, (346), 278 states have internal predecessors, (346), 125 states have call successors, (125), 28 states have call predecessors, (125), 33 states have return successors, (170), 127 states have call predecessors, (170), 123 states have call successors, (170) [2023-11-29 06:59:05,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 641 transitions. [2023-11-29 06:59:05,751 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 641 transitions. Word has length 260 [2023-11-29 06:59:05,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:59:05,751 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 641 transitions. [2023-11-29 06:59:05,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-29 06:59:05,752 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 641 transitions. [2023-11-29 06:59:05,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-11-29 06:59:05,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:59:05,754 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:59:05,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-11-29 06:59:05,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:59:05,955 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:59:05,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:59:05,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1355580354, now seen corresponding path program 1 times [2023-11-29 06:59:05,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:59:05,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113076455] [2023-11-29 06:59:05,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:05,958 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:59:05,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:59:05,958 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:59:05,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-29 06:59:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:07,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 2010 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:59:07,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:59:07,579 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 198 proven. 1 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2023-11-29 06:59:07,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:59:07,898 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2023-11-29 06:59:07,898 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:59:07,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113076455] [2023-11-29 06:59:07,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2113076455] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:59:07,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:59:07,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 06:59:07,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101717262] [2023-11-29 06:59:07,899 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:59:07,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:59:07,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:59:07,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:59:07,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:59:07,900 INFO L87 Difference]: Start difference. First operand 434 states and 641 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-11-29 06:59:10,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:13,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:16,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:19,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:22,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:23,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:59:23,583 INFO L93 Difference]: Finished difference Result 836 states and 1297 transitions. [2023-11-29 06:59:23,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:59:23,584 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 242 [2023-11-29 06:59:23,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:59:23,587 INFO L225 Difference]: With dead ends: 836 [2023-11-29 06:59:23,587 INFO L226 Difference]: Without dead ends: 446 [2023-11-29 06:59:23,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:59:23,589 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 18 mSDsluCounter, 1644 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2059 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:59:23,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2059 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 15.5s Time] [2023-11-29 06:59:23,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2023-11-29 06:59:23,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 440. [2023-11-29 06:59:23,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 280 states have (on average 1.2678571428571428) internal successors, (355), 284 states have internal predecessors, (355), 125 states have call successors, (125), 28 states have call predecessors, (125), 33 states have return successors, (170), 127 states have call predecessors, (170), 123 states have call successors, (170) [2023-11-29 06:59:23,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 650 transitions. [2023-11-29 06:59:23,621 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 650 transitions. Word has length 242 [2023-11-29 06:59:23,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:59:23,622 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 650 transitions. [2023-11-29 06:59:23,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-11-29 06:59:23,622 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 650 transitions. [2023-11-29 06:59:23,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-11-29 06:59:23,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:59:23,625 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:59:23,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-11-29 06:59:23,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:59:23,826 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:59:23,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:59:23,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1502196607, now seen corresponding path program 1 times [2023-11-29 06:59:23,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:59:23,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746189166] [2023-11-29 06:59:23,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:23,828 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:59:23,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:59:23,829 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:59:23,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-29 06:59:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:25,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 1993 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:59:25,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:59:25,944 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2023-11-29 06:59:25,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:59:25,944 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:59:25,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746189166] [2023-11-29 06:59:25,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1746189166] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:59:25,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:59:25,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:59:25,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102810635] [2023-11-29 06:59:25,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:59:25,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:59:25,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:59:25,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:59:25,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:59:25,946 INFO L87 Difference]: Start difference. First operand 440 states and 650 transitions. Second operand has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-29 06:59:28,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:31,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:33,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:36,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:39,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:42,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:43,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:59:43,221 INFO L93 Difference]: Finished difference Result 771 states and 1144 transitions. [2023-11-29 06:59:43,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:59:43,223 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) Word has length 236 [2023-11-29 06:59:43,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:59:43,226 INFO L225 Difference]: With dead ends: 771 [2023-11-29 06:59:43,226 INFO L226 Difference]: Without dead ends: 442 [2023-11-29 06:59:43,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:59:43,228 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 105 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:59:43,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 2584 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 17.2s Time] [2023-11-29 06:59:43,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-11-29 06:59:43,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2023-11-29 06:59:43,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 281 states have (on average 1.2669039145907472) internal successors, (356), 286 states have internal predecessors, (356), 125 states have call successors, (125), 28 states have call predecessors, (125), 34 states have return successors, (172), 127 states have call predecessors, (172), 123 states have call successors, (172) [2023-11-29 06:59:43,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 653 transitions. [2023-11-29 06:59:43,249 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 653 transitions. Word has length 236 [2023-11-29 06:59:43,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:59:43,249 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 653 transitions. [2023-11-29 06:59:43,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-29 06:59:43,250 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 653 transitions. [2023-11-29 06:59:43,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-11-29 06:59:43,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:59:43,252 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:59:43,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-11-29 06:59:43,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:59:43,453 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:59:43,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:59:43,453 INFO L85 PathProgramCache]: Analyzing trace with hash -482939945, now seen corresponding path program 1 times [2023-11-29 06:59:43,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:59:43,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391384314] [2023-11-29 06:59:43,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:43,455 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:59:43,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:59:43,456 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:59:43,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-11-29 06:59:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:45,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 2052 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:59:45,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:59:45,181 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 209 proven. 16 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2023-11-29 06:59:45,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:59:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2023-11-29 06:59:46,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:59:46,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391384314] [2023-11-29 06:59:46,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391384314] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:59:46,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:59:46,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 06:59:46,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940544538] [2023-11-29 06:59:46,069 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:59:46,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:59:46,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:59:46,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:59:46,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:59:46,071 INFO L87 Difference]: Start difference. First operand 442 states and 653 transitions. Second operand has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-11-29 06:59:49,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:51,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:54,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:58,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:01,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:04,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:07,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:09,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:09,624 INFO L93 Difference]: Finished difference Result 870 states and 1375 transitions. [2023-11-29 07:00:09,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 07:00:09,626 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 256 [2023-11-29 07:00:09,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:09,630 INFO L225 Difference]: With dead ends: 870 [2023-11-29 07:00:09,630 INFO L226 Difference]: Without dead ends: 472 [2023-11-29 07:00:09,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2023-11-29 07:00:09,634 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 69 mSDsluCounter, 2518 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 2939 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:09,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 2939 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 22.4s Time] [2023-11-29 07:00:09,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2023-11-29 07:00:09,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 454. [2023-11-29 07:00:09,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 293 states have (on average 1.2764505119453924) internal successors, (374), 298 states have internal predecessors, (374), 125 states have call successors, (125), 28 states have call predecessors, (125), 34 states have return successors, (172), 127 states have call predecessors, (172), 123 states have call successors, (172) [2023-11-29 07:00:09,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 671 transitions. [2023-11-29 07:00:09,669 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 671 transitions. Word has length 256 [2023-11-29 07:00:09,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:09,670 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 671 transitions. [2023-11-29 07:00:09,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-11-29 07:00:09,670 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 671 transitions. [2023-11-29 07:00:09,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-11-29 07:00:09,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:09,673 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-29 07:00:09,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-11-29 07:00:09,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:00:09,874 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:00:09,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:09,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1698071534, now seen corresponding path program 2 times [2023-11-29 07:00:09,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:00:09,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022645104] [2023-11-29 07:00:09,877 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:00:09,877 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:00:09,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:00:09,879 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:00:09,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-11-29 07:00:13,464 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:00:13,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:00:13,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 2186 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 07:00:13,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:00:14,020 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 235 proven. 100 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2023-11-29 07:00:14,020 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:00:16,565 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 0 proven. 107 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2023-11-29 07:00:16,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:00:16,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022645104] [2023-11-29 07:00:16,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022645104] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:00:16,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:00:16,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 07:00:16,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571975081] [2023-11-29 07:00:16,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:00:16,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 07:00:16,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:00:16,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 07:00:16,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 07:00:16,569 INFO L87 Difference]: Start difference. First operand 454 states and 671 transitions. Second operand has 26 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 26 states have internal predecessors, (148), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-11-29 07:00:19,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:22,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:24,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:27,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:30,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:33,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:36,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:39,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:42,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:45,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:48,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:51,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:04,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:04,312 INFO L93 Difference]: Finished difference Result 930 states and 1519 transitions. [2023-11-29 07:01:04,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 07:01:04,314 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 26 states have internal predecessors, (148), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 281 [2023-11-29 07:01:04,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:04,318 INFO L225 Difference]: With dead ends: 930 [2023-11-29 07:01:04,318 INFO L226 Difference]: Without dead ends: 520 [2023-11-29 07:01:04,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=479, Invalid=853, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 07:01:04,321 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 271 mSDsluCounter, 4776 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 5209 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:04,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 5209 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 38.1s Time] [2023-11-29 07:01:04,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-11-29 07:01:04,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 478. [2023-11-29 07:01:04,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 317 states have (on average 1.2933753943217665) internal successors, (410), 322 states have internal predecessors, (410), 125 states have call successors, (125), 28 states have call predecessors, (125), 34 states have return successors, (172), 127 states have call predecessors, (172), 123 states have call successors, (172) [2023-11-29 07:01:04,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 707 transitions. [2023-11-29 07:01:04,349 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 707 transitions. Word has length 281 [2023-11-29 07:01:04,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:04,349 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 707 transitions. [2023-11-29 07:01:04,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 26 states have internal predecessors, (148), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-11-29 07:01:04,350 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 707 transitions. [2023-11-29 07:01:04,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-11-29 07:01:04,351 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:04,352 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-29 07:01:04,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-11-29 07:01:04,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:01:04,552 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:01:04,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:04,553 INFO L85 PathProgramCache]: Analyzing trace with hash -911835886, now seen corresponding path program 1 times [2023-11-29 07:01:04,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:01:04,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581886622] [2023-11-29 07:01:04,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:04,555 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:01:04,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:01:04,555 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:01:04,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-11-29 07:01:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:06,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 2023 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:01:06,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:06,887 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-11-29 07:01:06,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:06,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:01:06,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581886622] [2023-11-29 07:01:06,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [581886622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:06,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:06,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 07:01:06,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233923286] [2023-11-29 07:01:06,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:06,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:01:06,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:01:06,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:01:06,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:01:06,890 INFO L87 Difference]: Start difference. First operand 478 states and 707 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 6 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-29 07:01:09,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:12,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:14,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:17,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:20,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:23,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:25,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:28,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:30,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:30,270 INFO L93 Difference]: Finished difference Result 848 states and 1259 transitions. [2023-11-29 07:01:30,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:01:30,271 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 6 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 244 [2023-11-29 07:01:30,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:30,275 INFO L225 Difference]: With dead ends: 848 [2023-11-29 07:01:30,275 INFO L226 Difference]: Without dead ends: 481 [2023-11-29 07:01:30,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:01:30,277 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 157 mSDsluCounter, 2814 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 3189 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:30,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 3189 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 23.2s Time] [2023-11-29 07:01:30,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-11-29 07:01:30,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 479. [2023-11-29 07:01:30,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 318 states have (on average 1.2924528301886793) internal successors, (411), 323 states have internal predecessors, (411), 125 states have call successors, (125), 28 states have call predecessors, (125), 34 states have return successors, (172), 127 states have call predecessors, (172), 123 states have call successors, (172) [2023-11-29 07:01:30,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 708 transitions. [2023-11-29 07:01:30,302 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 708 transitions. Word has length 244 [2023-11-29 07:01:30,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:30,302 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 708 transitions. [2023-11-29 07:01:30,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 6 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-29 07:01:30,303 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 708 transitions. [2023-11-29 07:01:30,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-11-29 07:01:30,304 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:30,305 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:30,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-11-29 07:01:30,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:01:30,505 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:01:30,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:30,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1077957185, now seen corresponding path program 2 times [2023-11-29 07:01:30,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:01:30,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441836124] [2023-11-29 07:01:30,508 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:01:30,508 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:01:30,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:01:30,508 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:01:30,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-11-29 07:01:34,910 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:01:34,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:01:35,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 2133 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:01:35,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:35,244 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2023-11-29 07:01:35,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:35,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:01:35,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441836124] [2023-11-29 07:01:35,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [441836124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:35,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:35,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 07:01:35,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220536733] [2023-11-29 07:01:35,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:35,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:01:35,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:01:35,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:01:35,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:01:35,247 INFO L87 Difference]: Start difference. First operand 479 states and 708 transitions. Second operand has 9 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-29 07:01:38,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:41,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:43,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:46,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:48,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:51,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:54,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:55,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:55,281 INFO L93 Difference]: Finished difference Result 850 states and 1259 transitions. [2023-11-29 07:01:55,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:01:55,282 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 257 [2023-11-29 07:01:55,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:55,285 INFO L225 Difference]: With dead ends: 850 [2023-11-29 07:01:55,285 INFO L226 Difference]: Without dead ends: 482 [2023-11-29 07:01:55,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:01:55,287 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 124 mSDsluCounter, 2515 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 2900 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:55,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 2900 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 19.9s Time] [2023-11-29 07:01:55,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2023-11-29 07:01:55,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 476. [2023-11-29 07:01:55,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 316 states have (on average 1.2943037974683544) internal successors, (409), 320 states have internal predecessors, (409), 125 states have call successors, (125), 28 states have call predecessors, (125), 33 states have return successors, (168), 127 states have call predecessors, (168), 123 states have call successors, (168) [2023-11-29 07:01:55,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 702 transitions. [2023-11-29 07:01:55,311 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 702 transitions. Word has length 257 [2023-11-29 07:01:55,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:55,311 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 702 transitions. [2023-11-29 07:01:55,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-29 07:01:55,312 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 702 transitions. [2023-11-29 07:01:55,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2023-11-29 07:01:55,314 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:55,314 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:55,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2023-11-29 07:01:55,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:01:55,515 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:01:55,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:55,515 INFO L85 PathProgramCache]: Analyzing trace with hash -743741077, now seen corresponding path program 1 times [2023-11-29 07:01:55,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:01:55,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453929630] [2023-11-29 07:01:55,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:55,518 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:01:55,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:01:55,519 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:01:55,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-11-29 07:01:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:57,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 2387 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 07:01:57,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:58,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 280 proven. 484 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2023-11-29 07:01:58,687 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:05,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 0 proven. 492 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2023-11-29 07:02:05,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:02:05,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453929630] [2023-11-29 07:02:05,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453929630] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:02:05,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:02:05,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-29 07:02:05,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125114930] [2023-11-29 07:02:05,809 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:05,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-29 07:02:05,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:02:05,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-29 07:02:05,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=658, Invalid=1792, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 07:02:05,813 INFO L87 Difference]: Start difference. First operand 476 states and 702 transitions. Second operand has 50 states, 50 states have (on average 3.88) internal successors, (194), 50 states have internal predecessors, (194), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-11-29 07:02:08,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:11,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:13,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:16,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:19,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:22,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:25,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:28,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:31,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:34,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:37,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:40,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:43,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:45,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:48,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:51,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:53,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:56,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:59,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:03:01,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:03:04,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:03:07,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:03:10,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:03:12,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:03:15,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:03:18,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:04:06,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:04:06,819 INFO L93 Difference]: Finished difference Result 1022 states and 1729 transitions. [2023-11-29 07:04:06,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-29 07:04:06,820 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 3.88) internal successors, (194), 50 states have internal predecessors, (194), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 334 [2023-11-29 07:04:06,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:04:06,825 INFO L225 Difference]: With dead ends: 1022 [2023-11-29 07:04:06,825 INFO L226 Difference]: Without dead ends: 590 [2023-11-29 07:04:06,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 683 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 44.0s TimeCoverageRelationStatistics Valid=1406, Invalid=3016, Unknown=0, NotChecked=0, Total=4422 [2023-11-29 07:04:06,830 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 904 mSDsluCounter, 11221 mSDsCounter, 0 mSdLazyCounter, 3619 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 11678 SdHoareTripleChecker+Invalid, 3624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:04:06,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 11678 Invalid, 3624 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 3619 Invalid, 0 Unknown, 0 Unchecked, 83.7s Time] [2023-11-29 07:04:06,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2023-11-29 07:04:06,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 512. [2023-11-29 07:04:06,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 352 states have (on average 1.3153409090909092) internal successors, (463), 356 states have internal predecessors, (463), 125 states have call successors, (125), 28 states have call predecessors, (125), 33 states have return successors, (168), 127 states have call predecessors, (168), 123 states have call successors, (168) [2023-11-29 07:04:06,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 756 transitions. [2023-11-29 07:04:06,910 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 756 transitions. Word has length 334 [2023-11-29 07:04:06,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:04:06,910 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 756 transitions. [2023-11-29 07:04:06,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.88) internal successors, (194), 50 states have internal predecessors, (194), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-11-29 07:04:06,911 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 756 transitions. [2023-11-29 07:04:06,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2023-11-29 07:04:06,913 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:04:06,914 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:06,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-11-29 07:04:07,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:04:07,114 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:04:07,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:04:07,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1317089511, now seen corresponding path program 1 times [2023-11-29 07:04:07,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:04:07,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482386268] [2023-11-29 07:04:07,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:04:07,117 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:04:07,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:04:07,118 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:04:07,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-11-29 07:04:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:04:09,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 2176 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 07:04:09,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:04:09,911 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2023-11-29 07:04:09,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:04:09,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:04:09,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482386268] [2023-11-29 07:04:09,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482386268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:04:09,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:04:09,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 07:04:09,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283848108] [2023-11-29 07:04:09,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:04:09,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 07:04:09,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:04:09,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 07:04:09,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:04:09,914 INFO L87 Difference]: Start difference. First operand 512 states and 756 transitions. Second operand has 11 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 6 states have call predecessors, (26), 7 states have call successors, (26) [2023-11-29 07:04:12,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:04:15,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:04:17,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:04:20,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:04:23,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:04:25,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:04:28,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:04:30,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:04:33,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:04:35,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:04:35,609 INFO L93 Difference]: Finished difference Result 913 states and 1352 transitions. [2023-11-29 07:04:35,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 07:04:35,611 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 6 states have call predecessors, (26), 7 states have call successors, (26) Word has length 273 [2023-11-29 07:04:35,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:04:35,614 INFO L225 Difference]: With dead ends: 913 [2023-11-29 07:04:35,614 INFO L226 Difference]: Without dead ends: 512 [2023-11-29 07:04:35,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2023-11-29 07:04:35,617 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 196 mSDsluCounter, 3159 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 3534 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:04:35,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 3534 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 25.5s Time] [2023-11-29 07:04:35,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-11-29 07:04:35,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 512. [2023-11-29 07:04:35,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 352 states have (on average 1.3153409090909092) internal successors, (463), 356 states have internal predecessors, (463), 125 states have call successors, (125), 28 states have call predecessors, (125), 33 states have return successors, (166), 127 states have call predecessors, (166), 123 states have call successors, (166) [2023-11-29 07:04:35,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 754 transitions. [2023-11-29 07:04:35,644 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 754 transitions. Word has length 273 [2023-11-29 07:04:35,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:04:35,644 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 754 transitions. [2023-11-29 07:04:35,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 6 states have call predecessors, (26), 7 states have call successors, (26) [2023-11-29 07:04:35,645 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 754 transitions. [2023-11-29 07:04:35,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-11-29 07:04:35,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:04:35,647 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:35,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-11-29 07:04:35,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:04:35,847 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:04:35,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:04:35,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1605130958, now seen corresponding path program 2 times [2023-11-29 07:04:35,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:04:35,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1931856132] [2023-11-29 07:04:35,850 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:04:35,850 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:04:35,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:04:35,851 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:04:35,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-11-29 07:04:40,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:04:40,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:04:40,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 2286 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:04:40,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:04:41,195 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2023-11-29 07:04:41,195 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:04:41,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:04:41,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1931856132] [2023-11-29 07:04:41,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1931856132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:04:41,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:04:41,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 07:04:41,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85612069] [2023-11-29 07:04:41,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:04:41,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:04:41,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:04:41,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:04:41,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:04:41,207 INFO L87 Difference]: Start difference. First operand 512 states and 754 transitions. Second operand has 10 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 6 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 6 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-29 07:04:44,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:04:47,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:04:49,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:04:52,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:04:55,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:04:58,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:05:01,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:05:04,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:05:05,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:05,998 INFO L93 Difference]: Finished difference Result 919 states and 1360 transitions. [2023-11-29 07:05:05,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:05:05,999 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 6 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 6 states have call predecessors, (24), 5 states have call successors, (24) Word has length 286 [2023-11-29 07:05:05,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:06,003 INFO L225 Difference]: With dead ends: 919 [2023-11-29 07:05:06,003 INFO L226 Difference]: Without dead ends: 523 [2023-11-29 07:05:06,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:05:06,007 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 100 mSDsluCounter, 2930 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 3315 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:06,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 3315 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 24.6s Time] [2023-11-29 07:05:06,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-11-29 07:05:06,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2023-11-29 07:05:06,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 357 states have (on average 1.3137254901960784) internal successors, (469), 361 states have internal predecessors, (469), 130 states have call successors, (130), 29 states have call predecessors, (130), 34 states have return successors, (171), 132 states have call predecessors, (171), 128 states have call successors, (171) [2023-11-29 07:05:06,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 770 transitions. [2023-11-29 07:05:06,053 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 770 transitions. Word has length 286 [2023-11-29 07:05:06,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:06,054 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 770 transitions. [2023-11-29 07:05:06,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 6 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 6 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-29 07:05:06,054 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 770 transitions. [2023-11-29 07:05:06,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2023-11-29 07:05:06,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:06,057 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:05:06,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-11-29 07:05:06,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:05:06,258 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:05:06,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:06,258 INFO L85 PathProgramCache]: Analyzing trace with hash 510640828, now seen corresponding path program 1 times [2023-11-29 07:05:06,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:05:06,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458478344] [2023-11-29 07:05:06,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:06,261 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:05:06,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:05:06,270 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:05:06,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-11-29 07:05:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:09,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 2562 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:05:09,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:09,615 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2023-11-29 07:05:09,615 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:05:09,615 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:05:09,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458478344] [2023-11-29 07:05:09,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458478344] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:05:09,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:05:09,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 07:05:09,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088393519] [2023-11-29 07:05:09,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:05:09,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:05:09,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:05:09,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:05:09,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:05:09,617 INFO L87 Difference]: Start difference. First operand 523 states and 770 transitions. Second operand has 6 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-29 07:05:12,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:05:15,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:05:17,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:05:20,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:05:23,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:05:23,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:23,834 INFO L93 Difference]: Finished difference Result 976 states and 1463 transitions. [2023-11-29 07:05:23,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:05:23,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 318 [2023-11-29 07:05:23,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:23,838 INFO L225 Difference]: With dead ends: 976 [2023-11-29 07:05:23,838 INFO L226 Difference]: Without dead ends: 557 [2023-11-29 07:05:23,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:05:23,841 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 53 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:23,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 2187 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 14.1s Time] [2023-11-29 07:05:23,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2023-11-29 07:05:23,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 524. [2023-11-29 07:05:23,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 358 states have (on average 1.312849162011173) internal successors, (470), 362 states have internal predecessors, (470), 130 states have call successors, (130), 29 states have call predecessors, (130), 34 states have return successors, (171), 132 states have call predecessors, (171), 128 states have call successors, (171) [2023-11-29 07:05:23,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 771 transitions. [2023-11-29 07:05:23,882 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 771 transitions. Word has length 318 [2023-11-29 07:05:23,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:23,882 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 771 transitions. [2023-11-29 07:05:23,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-29 07:05:23,882 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 771 transitions. [2023-11-29 07:05:23,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2023-11-29 07:05:23,884 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:23,885 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:05:23,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-11-29 07:05:24,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:05:24,085 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:05:24,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:24,086 INFO L85 PathProgramCache]: Analyzing trace with hash -254904988, now seen corresponding path program 1 times [2023-11-29 07:05:24,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:05:24,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751023894] [2023-11-29 07:05:24,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:24,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:05:24,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:05:24,089 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:05:24,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-11-29 07:05:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:34,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 2506 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:05:34,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:34,990 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:05:34,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 132 treesize of output 36 [2023-11-29 07:05:37,356 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2023-11-29 07:05:37,357 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:05:37,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:05:37,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751023894] [2023-11-29 07:05:37,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751023894] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:05:37,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:05:37,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 07:05:37,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541435507] [2023-11-29 07:05:37,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:05:37,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:05:37,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:05:37,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:05:37,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:05:37,359 INFO L87 Difference]: Start difference. First operand 524 states and 771 transitions. Second operand has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-29 07:05:40,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:05:42,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:05:45,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:05:48,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:05:50,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:05:53,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:05:55,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:06:00,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:06:03,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:03,412 INFO L93 Difference]: Finished difference Result 986 states and 1464 transitions. [2023-11-29 07:06:03,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:06:03,414 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 312 [2023-11-29 07:06:03,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:03,417 INFO L225 Difference]: With dead ends: 986 [2023-11-29 07:06:03,418 INFO L226 Difference]: Without dead ends: 532 [2023-11-29 07:06:03,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:06:03,420 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 21 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 2475 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:03,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 2475 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 25.8s Time] [2023-11-29 07:06:03,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-11-29 07:06:03,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 528. [2023-11-29 07:06:03,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 362 states have (on average 1.3093922651933703) internal successors, (474), 366 states have internal predecessors, (474), 130 states have call successors, (130), 29 states have call predecessors, (130), 34 states have return successors, (171), 132 states have call predecessors, (171), 128 states have call successors, (171) [2023-11-29 07:06:03,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 775 transitions. [2023-11-29 07:06:03,453 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 775 transitions. Word has length 312 [2023-11-29 07:06:03,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:03,454 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 775 transitions. [2023-11-29 07:06:03,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-29 07:06:03,454 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 775 transitions. [2023-11-29 07:06:03,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-11-29 07:06:03,456 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:03,456 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:06:03,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2023-11-29 07:06:03,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:03,657 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:06:03,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:03,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1718115110, now seen corresponding path program 1 times [2023-11-29 07:06:03,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:06:03,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696323679] [2023-11-29 07:06:03,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:03,659 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:03,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:06:03,660 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:06:03,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c267a-f24e-447f-9f35-e3626919402c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-11-29 07:06:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:19,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 2538 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 07:06:19,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:20,469 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2023-11-29 07:06:20,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:20,470 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:06:20,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696323679] [2023-11-29 07:06:20,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696323679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:20,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:20,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 07:06:20,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924336207] [2023-11-29 07:06:20,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:20,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:06:20,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:06:20,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:06:20,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:06:20,472 INFO L87 Difference]: Start difference. First operand 528 states and 775 transitions. Second operand has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 7 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2023-11-29 07:06:23,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:06:26,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:06:29,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:06:32,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:06:35,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:06:38,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:06:42,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:06:44,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:06:47,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []