./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:30:49,654 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:30:49,763 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 22:30:49,769 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:30:49,770 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:30:49,807 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:30:49,808 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:30:49,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:30:49,810 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:30:49,817 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:30:49,817 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:30:49,818 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:30:49,819 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:30:49,821 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:30:49,821 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:30:49,822 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:30:49,822 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:30:49,822 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:30:49,823 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:30:49,823 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:30:49,824 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:30:49,825 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:30:49,825 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:30:49,825 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:30:49,826 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:30:49,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:30:49,827 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:30:49,828 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:30:49,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:30:49,830 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:30:49,831 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:30:49,831 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:30:49,831 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:30:49,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:30:49,832 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:30:49,832 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:30:49,832 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:30:49,833 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:30:49,833 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:30:49,833 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_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e [2023-11-23 22:30:50,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:30:50,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:30:50,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:30:50,196 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:30:50,197 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:30:50,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2023-11-23 22:30:53,320 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:30:53,926 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:30:53,927 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2023-11-23 22:30:53,969 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/data/02f22a6cc/5e45e4e580104a5ea6f4f95bcbad996b/FLAGbe7fd42ed [2023-11-23 22:30:53,987 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/data/02f22a6cc/5e45e4e580104a5ea6f4f95bcbad996b [2023-11-23 22:30:53,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:30:53,996 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:30:53,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:30:53,998 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:30:54,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:30:54,006 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:30:53" (1/1) ... [2023-11-23 22:30:54,007 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e97935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:54, skipping insertion in model container [2023-11-23 22:30:54,008 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:30:53" (1/1) ... [2023-11-23 22:30:54,144 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:30:54,472 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_52b05d8e-bdfa-418c-8693-cf87275c08d7/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2023-11-23 22:30:54,482 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_52b05d8e-bdfa-418c-8693-cf87275c08d7/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2023-11-23 22:30:55,764 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:55,765 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:55,765 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:55,766 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:55,768 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:55,783 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:55,784 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:55,786 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:55,787 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:55,789 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:55,790 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:55,791 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:55,792 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,332 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 22:30:56,333 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 22:30:56,335 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 22:30:56,336 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 22:30:56,339 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 22:30:56,340 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 22:30:56,341 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 22:30:56,342 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 22:30:56,343 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 22:30:56,344 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 22:30:56,591 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,600 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,698 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,699 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,700 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,701 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,701 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,702 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,703 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,704 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,705 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,705 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,706 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,707 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,707 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,711 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,712 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,712 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,713 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,722 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,722 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,739 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,743 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,743 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,771 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,775 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,776 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:30:56,841 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:30:56,866 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_52b05d8e-bdfa-418c-8693-cf87275c08d7/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2023-11-23 22:30:56,869 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_52b05d8e-bdfa-418c-8693-cf87275c08d7/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2023-11-23 22:30:56,942 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,942 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,943 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,944 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,945 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,954 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,955 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,956 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,957 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,959 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,961 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,962 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:56,962 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,015 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 22:30:57,016 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 22:30:57,018 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 22:30:57,019 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 22:30:57,020 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 22:30:57,021 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 22:30:57,021 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 22:30:57,022 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 22:30:57,022 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 22:30:57,023 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 22:30:57,075 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,082 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7771-7782] [2023-11-23 22:30:57,107 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,108 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,108 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,109 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,109 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,109 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,110 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,110 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,110 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,111 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,111 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,111 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,111 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,112 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,112 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,113 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,113 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,115 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,115 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,121 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,122 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,122 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,127 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,127 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,128 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:30:57,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:30:57,377 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:30:57,378 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:30:57,378 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:30:57,378 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:30:57,379 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:30:57,379 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:30:57,379 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:30:57,379 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:30:57,380 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:30:57,380 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:30:57,380 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:30:57,380 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:30:57,380 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:30:57,380 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:30:57,380 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:30:57,388 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:30:57,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57 WrapperNode [2023-11-23 22:30:57,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:30:57,392 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:30:57,393 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:30:57,393 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:30:57,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,507 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,615 INFO L138 Inliner]: procedures = 696, calls = 1922, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1063 [2023-11-23 22:30:57,616 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:30:57,616 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:30:57,616 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:30:57,617 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:30:57,628 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,637 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,822 INFO L189 HeapSplitter]: Split 384 memory accesses to 8 slices as follows [2, 262, 3, 0, 13, 17, 84, 3] [2023-11-23 22:30:57,826 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,826 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,893 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,901 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,925 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,946 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:30:57,947 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:30:57,948 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:30:57,948 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:30:57,949 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (1/1) ... [2023-11-23 22:30:57,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:30:57,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:57,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:30:58,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:30:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-23 22:30:58,026 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-23 22:30:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-23 22:30:58,027 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-23 22:30:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:30:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-23 22:30:58,027 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-23 22:30:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-23 22:30:58,027 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-23 22:30:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 22:30:58,027 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 22:30:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-23 22:30:58,028 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-23 22:30:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-23 22:30:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-23 22:30:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-23 22:30:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-23 22:30:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-23 22:30:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-23 22:30:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-23 22:30:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-23 22:30:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 22:30:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 22:30:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 22:30:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 22:30:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 22:30:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 22:30:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 22:30:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 22:30:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 22:30:58,030 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 22:30:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 22:30:58,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 22:30:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2023-11-23 22:30:58,030 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2023-11-23 22:30:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:30:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:30:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 22:30:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 22:30:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 22:30:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 22:30:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 22:30:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 22:30:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 22:30:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-23 22:30:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-23 22:30:58,031 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-23 22:30:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-23 22:30:58,032 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-23 22:30:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:30:58,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:30:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 22:30:58,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 22:30:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 22:30:58,032 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 22:30:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-23 22:30:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-23 22:30:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-23 22:30:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-23 22:30:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-23 22:30:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-23 22:30:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-23 22:30:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-23 22:30:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-23 22:30:58,033 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-23 22:30:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-23 22:30:58,033 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-23 22:30:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-23 22:30:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-23 22:30:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-23 22:30:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-23 22:30:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-23 22:30:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-23 22:30:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-23 22:30:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-11-23 22:30:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-11-23 22:30:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2023-11-23 22:30:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-23 22:30:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-23 22:30:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-23 22:30:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-23 22:30:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-23 22:30:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-11-23 22:30:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-11-23 22:30:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2023-11-23 22:30:58,035 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 22:30:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 22:30:58,036 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-23 22:30:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-23 22:30:58,036 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-11-23 22:30:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-11-23 22:30:58,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:30:58,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 22:30:58,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 22:30:58,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 22:30:58,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 22:30:58,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 22:30:58,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 22:30:58,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 22:30:58,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-23 22:30:58,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 22:30:58,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 22:30:58,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 22:30:58,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 22:30:58,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 22:30:58,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 22:30:58,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 22:30:58,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-23 22:30:58,038 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-23 22:30:58,038 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-23 22:30:58,038 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 22:30:58,038 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 22:30:58,038 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 22:30:58,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 22:30:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 22:30:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 22:30:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 22:30:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 22:30:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 22:30:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 22:30:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 22:30:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 22:30:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-23 22:30:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-23 22:30:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 22:30:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 22:30:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 22:30:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 22:30:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:30:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 22:30:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 22:30:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 22:30:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 22:30:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 22:30:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 22:30:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 22:30:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2023-11-23 22:30:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2023-11-23 22:30:58,439 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:30:58,442 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:31:00,330 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:31:00,475 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:31:00,475 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-23 22:31:00,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:31:00 BoogieIcfgContainer [2023-11-23 22:31:00,476 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:31:00,478 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:31:00,479 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:31:00,482 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:31:00,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:30:53" (1/3) ... [2023-11-23 22:31:00,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ca039b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:31:00, skipping insertion in model container [2023-11-23 22:31:00,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:57" (2/3) ... [2023-11-23 22:31:00,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ca039b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:31:00, skipping insertion in model container [2023-11-23 22:31:00,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:31:00" (3/3) ... [2023-11-23 22:31:00,490 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_remove_harness.i [2023-11-23 22:31:00,513 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:31:00,513 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 22:31:00,615 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:31:00,630 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;@771f717d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:31:00,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 22:31:00,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 423 states, 233 states have (on average 1.296137339055794) internal successors, (302), 238 states have internal predecessors, (302), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2023-11-23 22:31:00,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-23 22:31:00,687 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:00,689 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:00,690 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:31:00,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:00,698 INFO L85 PathProgramCache]: Analyzing trace with hash 493416870, now seen corresponding path program 1 times [2023-11-23 22:31:00,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:00,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300622359] [2023-11-23 22:31:00,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:00,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:01,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:31:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:01,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:31:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:01,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:31:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:01,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 22:31:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:01,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 22:31:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:01,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:31:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:01,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 22:31:01,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:01,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 22:31:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:02,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:31:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:02,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 22:31:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:02,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 22:31:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:02,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 22:31:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:02,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:31:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:02,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 22:31:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:02,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:31:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:02,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 22:31:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:02,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 22:31:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:02,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 22:31:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:02,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 22:31:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:02,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 22:31:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:02,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-23 22:31:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:02,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-23 22:31:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:02,436 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-23 22:31:02,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:02,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300622359] [2023-11-23 22:31:02,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300622359] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:02,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:02,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:31:02,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004111670] [2023-11-23 22:31:02,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:02,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:31:02,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:02,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:31:02,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:31:02,486 INFO L87 Difference]: Start difference. First operand has 423 states, 233 states have (on average 1.296137339055794) internal successors, (302), 238 states have internal predecessors, (302), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 22:31:07,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:07,591 INFO L93 Difference]: Finished difference Result 1259 states and 2406 transitions. [2023-11-23 22:31:07,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:31:07,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 128 [2023-11-23 22:31:07,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:07,623 INFO L225 Difference]: With dead ends: 1259 [2023-11-23 22:31:07,624 INFO L226 Difference]: Without dead ends: 842 [2023-11-23 22:31:07,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:31:07,650 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 599 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 1817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 904 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:07,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 1242 Invalid, 1817 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [904 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-23 22:31:07,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2023-11-23 22:31:07,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 420. [2023-11-23 22:31:07,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 232 states have (on average 1.25) internal successors, (290), 235 states have internal predecessors, (290), 160 states have call successors, (160), 27 states have call predecessors, (160), 26 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2023-11-23 22:31:07,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 608 transitions. [2023-11-23 22:31:07,841 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 608 transitions. Word has length 128 [2023-11-23 22:31:07,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:07,842 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 608 transitions. [2023-11-23 22:31:07,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 22:31:07,842 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 608 transitions. [2023-11-23 22:31:07,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-23 22:31:07,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:07,848 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:07,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:31:07,848 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:31:07,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:07,849 INFO L85 PathProgramCache]: Analyzing trace with hash 926342663, now seen corresponding path program 1 times [2023-11-23 22:31:07,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:07,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984951273] [2023-11-23 22:31:07,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:07,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:08,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:31:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:08,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:31:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:08,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:31:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:08,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 22:31:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:08,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 22:31:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:08,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:31:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:08,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 22:31:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 22:31:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:31:09,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 22:31:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 22:31:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 22:31:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:31:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 22:31:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:31:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 22:31:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 22:31:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 22:31:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 22:31:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 22:31:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-23 22:31:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-23 22:31:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-23 22:31:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-23 22:31:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-23 22:31:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,564 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2023-11-23 22:31:09,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:09,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984951273] [2023-11-23 22:31:09,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984951273] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:09,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967388840] [2023-11-23 22:31:09,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:09,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:09,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:09,568 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:09,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:31:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:10,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 2856 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:31:10,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:10,481 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-23 22:31:10,481 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:31:10,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967388840] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:10,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:31:10,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-23 22:31:10,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508609935] [2023-11-23 22:31:10,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:10,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:31:10,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:10,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:31:10,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 22:31:10,505 INFO L87 Difference]: Start difference. First operand 420 states and 608 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-23 22:31:12,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:12,206 INFO L93 Difference]: Finished difference Result 811 states and 1190 transitions. [2023-11-23 22:31:12,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:31:12,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 145 [2023-11-23 22:31:12,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:12,212 INFO L225 Difference]: With dead ends: 811 [2023-11-23 22:31:12,213 INFO L226 Difference]: Without dead ends: 422 [2023-11-23 22:31:12,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:31:12,218 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 66 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:12,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 2104 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-23 22:31:12,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2023-11-23 22:31:12,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2023-11-23 22:31:12,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 233 states have (on average 1.2489270386266094) internal successors, (291), 237 states have internal predecessors, (291), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (171), 158 states have call predecessors, (171), 158 states have call successors, (171) [2023-11-23 22:31:12,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 622 transitions. [2023-11-23 22:31:12,284 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 622 transitions. Word has length 145 [2023-11-23 22:31:12,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:12,286 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 622 transitions. [2023-11-23 22:31:12,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-23 22:31:12,287 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 622 transitions. [2023-11-23 22:31:12,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-23 22:31:12,291 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:12,291 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:12,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:12,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:12,518 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:31:12,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:12,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1867065304, now seen corresponding path program 1 times [2023-11-23 22:31:12,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:12,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167439895] [2023-11-23 22:31:12,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:12,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:13,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:31:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:13,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:31:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:13,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:31:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:13,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 22:31:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:13,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 22:31:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:13,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:31:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:13,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 22:31:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:13,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 22:31:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:13,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:31:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:13,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 22:31:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:14,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 22:31:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:14,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 22:31:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:14,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 22:31:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:14,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:31:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:14,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 22:31:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:14,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:31:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:14,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 22:31:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:14,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 22:31:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:14,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-23 22:31:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:14,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 22:31:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:14,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 22:31:14,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:14,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-23 22:31:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:14,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 22:31:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:14,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 22:31:14,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:14,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-23 22:31:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:14,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-23 22:31:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:14,282 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2023-11-23 22:31:14,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:14,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167439895] [2023-11-23 22:31:14,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167439895] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:14,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750322995] [2023-11-23 22:31:14,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:14,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:14,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:14,284 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:14,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 22:31:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:15,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 2962 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:31:15,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:15,303 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-23 22:31:15,304 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:31:15,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750322995] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:15,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:31:15,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2023-11-23 22:31:15,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942926182] [2023-11-23 22:31:15,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:15,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:31:15,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:15,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:31:15,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2023-11-23 22:31:15,307 INFO L87 Difference]: Start difference. First operand 422 states and 622 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2023-11-23 22:31:17,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:17,353 INFO L93 Difference]: Finished difference Result 834 states and 1261 transitions. [2023-11-23 22:31:17,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:31:17,354 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 153 [2023-11-23 22:31:17,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:17,361 INFO L225 Difference]: With dead ends: 834 [2023-11-23 22:31:17,361 INFO L226 Difference]: Without dead ends: 443 [2023-11-23 22:31:17,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2023-11-23 22:31:17,366 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 117 mSDsluCounter, 2511 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:17,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 3044 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-23 22:31:17,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-11-23 22:31:17,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 441. [2023-11-23 22:31:17,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 249 states have (on average 1.2570281124497993) internal successors, (313), 253 states have internal predecessors, (313), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2023-11-23 22:31:17,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 665 transitions. [2023-11-23 22:31:17,434 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 665 transitions. Word has length 153 [2023-11-23 22:31:17,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:17,434 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 665 transitions. [2023-11-23 22:31:17,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2023-11-23 22:31:17,435 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 665 transitions. [2023-11-23 22:31:17,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-23 22:31:17,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:17,438 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:17,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:17,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:17,664 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:31:17,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:17,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1198408920, now seen corresponding path program 1 times [2023-11-23 22:31:17,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:17,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769750957] [2023-11-23 22:31:17,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:17,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:17,879 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:31:17,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1120580539] [2023-11-23 22:31:17,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:17,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:17,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:17,884 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:17,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 22:31:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:18,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 3157 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:31:18,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:18,842 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-23 22:31:18,843 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:31:18,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:18,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769750957] [2023-11-23 22:31:18,843 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:31:18,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120580539] [2023-11-23 22:31:18,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120580539] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:18,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:18,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:31:18,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803565631] [2023-11-23 22:31:18,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:18,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:31:18,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:18,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:31:18,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:31:18,847 INFO L87 Difference]: Start difference. First operand 441 states and 665 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-23 22:31:20,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:20,239 INFO L93 Difference]: Finished difference Result 857 states and 1320 transitions. [2023-11-23 22:31:20,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:31:20,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 166 [2023-11-23 22:31:20,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:20,246 INFO L225 Difference]: With dead ends: 857 [2023-11-23 22:31:20,246 INFO L226 Difference]: Without dead ends: 447 [2023-11-23 22:31:20,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:31:20,251 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 85 mSDsluCounter, 2051 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 2598 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:20,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 2598 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 22:31:20,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-11-23 22:31:20,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2023-11-23 22:31:20,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 249 states have (on average 1.2570281124497993) internal successors, (313), 253 states have internal predecessors, (313), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2023-11-23 22:31:20,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 665 transitions. [2023-11-23 22:31:20,310 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 665 transitions. Word has length 166 [2023-11-23 22:31:20,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:20,312 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 665 transitions. [2023-11-23 22:31:20,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-23 22:31:20,312 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 665 transitions. [2023-11-23 22:31:20,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-11-23 22:31:20,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:20,317 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:20,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:20,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:20,544 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:31:20,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:20,545 INFO L85 PathProgramCache]: Analyzing trace with hash -2075113782, now seen corresponding path program 1 times [2023-11-23 22:31:20,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:20,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898499598] [2023-11-23 22:31:20,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:20,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:20,716 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:31:20,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [813609022] [2023-11-23 22:31:20,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:20,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:20,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:20,718 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:20,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 22:31:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:21,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 3280 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 22:31:21,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:21,854 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-23 22:31:21,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:31:21,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:21,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898499598] [2023-11-23 22:31:21,855 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:31:21,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813609022] [2023-11-23 22:31:21,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813609022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:21,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:21,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 22:31:21,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821050931] [2023-11-23 22:31:21,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:21,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:31:21,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:21,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:31:21,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:31:21,858 INFO L87 Difference]: Start difference. First operand 441 states and 665 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2023-11-23 22:31:24,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:24,700 INFO L93 Difference]: Finished difference Result 867 states and 1324 transitions. [2023-11-23 22:31:24,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 22:31:24,701 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 182 [2023-11-23 22:31:24,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:24,708 INFO L225 Difference]: With dead ends: 867 [2023-11-23 22:31:24,708 INFO L226 Difference]: Without dead ends: 457 [2023-11-23 22:31:24,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:31:24,714 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 145 mSDsluCounter, 2971 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 3495 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:24,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 3495 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-23 22:31:24,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-23 22:31:24,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 441. [2023-11-23 22:31:24,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 249 states have (on average 1.2570281124497993) internal successors, (313), 253 states have internal predecessors, (313), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2023-11-23 22:31:24,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 665 transitions. [2023-11-23 22:31:24,774 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 665 transitions. Word has length 182 [2023-11-23 22:31:24,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:24,775 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 665 transitions. [2023-11-23 22:31:24,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2023-11-23 22:31:24,775 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 665 transitions. [2023-11-23 22:31:24,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-11-23 22:31:24,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:24,779 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:24,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:24,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:24,992 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:31:24,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:24,993 INFO L85 PathProgramCache]: Analyzing trace with hash -127763510, now seen corresponding path program 2 times [2023-11-23 22:31:24,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:24,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745636780] [2023-11-23 22:31:24,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:24,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:25,202 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:31:25,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1062919499] [2023-11-23 22:31:25,206 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:31:25,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:25,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:25,207 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:25,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 22:31:26,749 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 22:31:26,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:31:26,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 3475 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 22:31:26,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:26,823 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 22:31:26,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2023-11-23 22:31:27,028 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-11-23 22:31:27,028 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:31:27,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:27,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745636780] [2023-11-23 22:31:27,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:31:27,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062919499] [2023-11-23 22:31:27,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062919499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:27,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:27,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:31:27,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200431330] [2023-11-23 22:31:27,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:27,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:31:27,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:27,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:31:27,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:31:27,033 INFO L87 Difference]: Start difference. First operand 441 states and 665 transitions. Second operand has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-23 22:31:28,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:28,517 INFO L93 Difference]: Finished difference Result 819 states and 1254 transitions. [2023-11-23 22:31:28,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:31:28,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 195 [2023-11-23 22:31:28,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:28,527 INFO L225 Difference]: With dead ends: 819 [2023-11-23 22:31:28,527 INFO L226 Difference]: Without dead ends: 443 [2023-11-23 22:31:28,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:31:28,532 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 76 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:28,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 2626 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-23 22:31:28,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-11-23 22:31:28,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2023-11-23 22:31:28,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 250 states have (on average 1.256) internal successors, (314), 255 states have internal predecessors, (314), 162 states have call successors, (162), 27 states have call predecessors, (162), 29 states have return successors, (201), 161 states have call predecessors, (201), 160 states have call successors, (201) [2023-11-23 22:31:28,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 677 transitions. [2023-11-23 22:31:28,594 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 677 transitions. Word has length 195 [2023-11-23 22:31:28,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:28,596 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 677 transitions. [2023-11-23 22:31:28,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-23 22:31:28,597 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 677 transitions. [2023-11-23 22:31:28,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-11-23 22:31:28,600 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:28,601 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:28,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:28,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:28,812 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:31:28,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:28,812 INFO L85 PathProgramCache]: Analyzing trace with hash 379526939, now seen corresponding path program 1 times [2023-11-23 22:31:28,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:28,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254545373] [2023-11-23 22:31:28,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:28,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:29,034 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:31:29,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [164409808] [2023-11-23 22:31:29,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:29,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:29,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:29,036 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:29,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 22:31:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:30,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 3581 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 22:31:30,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:30,192 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-23 22:31:30,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:31:30,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:30,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254545373] [2023-11-23 22:31:30,193 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:31:30,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164409808] [2023-11-23 22:31:30,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164409808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:30,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:30,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 22:31:30,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519717747] [2023-11-23 22:31:30,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:30,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:31:30,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:30,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:31:30,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:31:30,197 INFO L87 Difference]: Start difference. First operand 443 states and 677 transitions. Second operand has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 8 states have internal predecessors, (83), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-23 22:31:33,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:33,056 INFO L93 Difference]: Finished difference Result 837 states and 1298 transitions. [2023-11-23 22:31:33,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 22:31:33,057 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 8 states have internal predecessors, (83), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 203 [2023-11-23 22:31:33,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:33,064 INFO L225 Difference]: With dead ends: 837 [2023-11-23 22:31:33,064 INFO L226 Difference]: Without dead ends: 459 [2023-11-23 22:31:33,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 22:31:33,069 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 112 mSDsluCounter, 3072 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 3618 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:33,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 3618 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-23 22:31:33,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2023-11-23 22:31:33,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 457. [2023-11-23 22:31:33,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 263 states have (on average 1.2623574144486691) internal successors, (332), 267 states have internal predecessors, (332), 163 states have call successors, (163), 27 states have call predecessors, (163), 29 states have return successors, (202), 163 states have call predecessors, (202), 161 states have call successors, (202) [2023-11-23 22:31:33,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 697 transitions. [2023-11-23 22:31:33,122 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 697 transitions. Word has length 203 [2023-11-23 22:31:33,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:33,123 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 697 transitions. [2023-11-23 22:31:33,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 8 states have internal predecessors, (83), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-23 22:31:33,124 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 697 transitions. [2023-11-23 22:31:33,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-23 22:31:33,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:33,127 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:33,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:33,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:33,344 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:31:33,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:33,344 INFO L85 PathProgramCache]: Analyzing trace with hash -291827149, now seen corresponding path program 2 times [2023-11-23 22:31:33,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:33,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842918344] [2023-11-23 22:31:33,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:33,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:33,559 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:31:33,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1308285317] [2023-11-23 22:31:33,560 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:31:33,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:33,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:33,562 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:33,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 22:31:34,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 22:31:34,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:31:34,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 3776 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 22:31:34,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:35,035 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2023-11-23 22:31:35,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:31:35,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:35,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842918344] [2023-11-23 22:31:35,036 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:31:35,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308285317] [2023-11-23 22:31:35,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308285317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:35,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:35,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 22:31:35,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688250925] [2023-11-23 22:31:35,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:35,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:31:35,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:35,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:31:35,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:31:35,043 INFO L87 Difference]: Start difference. First operand 457 states and 697 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-23 22:31:36,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:36,868 INFO L93 Difference]: Finished difference Result 855 states and 1332 transitions. [2023-11-23 22:31:36,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 22:31:36,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 216 [2023-11-23 22:31:36,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:36,874 INFO L225 Difference]: With dead ends: 855 [2023-11-23 22:31:36,874 INFO L226 Difference]: Without dead ends: 463 [2023-11-23 22:31:36,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-23 22:31:36,879 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 95 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:36,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 3111 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-23 22:31:36,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2023-11-23 22:31:36,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 457. [2023-11-23 22:31:36,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 263 states have (on average 1.2623574144486691) internal successors, (332), 267 states have internal predecessors, (332), 163 states have call successors, (163), 27 states have call predecessors, (163), 29 states have return successors, (202), 163 states have call predecessors, (202), 161 states have call successors, (202) [2023-11-23 22:31:36,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 697 transitions. [2023-11-23 22:31:36,929 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 697 transitions. Word has length 216 [2023-11-23 22:31:36,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:36,930 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 697 transitions. [2023-11-23 22:31:36,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-23 22:31:36,931 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 697 transitions. [2023-11-23 22:31:36,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-11-23 22:31:36,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:36,934 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 22:31:36,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:37,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:37,161 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:31:37,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:37,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1868415189, now seen corresponding path program 1 times [2023-11-23 22:31:37,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:37,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105526091] [2023-11-23 22:31:37,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:37,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:37,335 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:31:37,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1273226441] [2023-11-23 22:31:37,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:37,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:37,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:37,337 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:37,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b05d8e-bdfa-418c-8693-cf87275c08d7/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 22:31:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:38,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 3899 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 22:31:38,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:38,561 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2023-11-23 22:31:38,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:31:38,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:38,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105526091] [2023-11-23 22:31:38,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:31:38,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273226441] [2023-11-23 22:31:38,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273226441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:38,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:38,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 22:31:38,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802114697] [2023-11-23 22:31:38,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:38,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:31:38,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:38,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:31:38,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:31:38,565 INFO L87 Difference]: Start difference. First operand 457 states and 697 transitions. Second operand has 9 states, 8 states have (on average 11.75) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 5 states have call predecessors, (28), 6 states have call successors, (28)