./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_either_harness.i --full-output --preprocessor.use.memory.slicer true --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version abd6749d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_either_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 07:39:39,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 07:39:39,806 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 07:39:39,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 07:39:39,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 07:39:39,823 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 07:39:39,824 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 07:39:39,824 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 07:39:39,824 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 07:39:39,825 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 07:39:39,825 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 07:39:39,825 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 07:39:39,826 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 07:39:39,826 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 07:39:39,826 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 07:39:39,827 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 07:39:39,827 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 07:39:39,827 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 07:39:39,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 07:39:39,828 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 07:39:39,828 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 07:39:39,829 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 07:39:39,829 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 07:39:39,829 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 07:39:39,830 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 07:39:39,830 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 07:39:39,830 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 07:39:39,830 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 07:39:39,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:39:39,831 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 07:39:39,831 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 07:39:39,832 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 07:39:39,832 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 07:39:39,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 07:39:39,832 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 07:39:39,833 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 07:39:39,833 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 07:39:39,833 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 07:39:39,833 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 07:39:39,833 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-23 07:39:40,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 07:39:40,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 07:39:40,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 07:39:40,062 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 07:39:40,062 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 07:39:40,063 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2023-11-23 07:39:41,140 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 07:39:41,556 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 07:39:41,557 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2023-11-23 07:39:41,584 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e5b73546/95b234f6f74e486391f50ee5464b9bea/FLAG84e92dcfc [2023-11-23 07:39:41,598 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e5b73546/95b234f6f74e486391f50ee5464b9bea [2023-11-23 07:39:41,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 07:39:41,604 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 07:39:41,606 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 07:39:41,606 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 07:39:41,610 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 07:39:41,610 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:39:41" (1/1) ... [2023-11-23 07:39:41,611 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45315f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:41, skipping insertion in model container [2023-11-23 07:39:41,611 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:39:41" (1/1) ... [2023-11-23 07:39:41,700 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 07:39:41,878 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2023-11-23 07:39:41,883 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2023-11-23 07:39:42,330 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,333 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,333 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,334 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,335 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,352 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,353 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,354 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,355 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,356 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,356 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,357 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,357 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,558 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:39:42,559 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:39:42,560 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:39:42,561 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:39:42,561 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:39:42,562 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:39:42,562 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:39:42,563 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:39:42,563 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:39:42,563 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:39:42,662 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,663 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,666 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,671 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,708 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,708 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,709 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,709 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,709 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,709 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,710 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,711 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,711 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,711 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,712 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,712 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,712 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,714 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,715 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,715 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,715 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,717 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,718 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,722 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,723 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,723 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:39:42,774 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 07:39:42,791 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2023-11-23 07:39:42,791 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2023-11-23 07:39:42,834 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,841 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,841 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,842 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,843 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,850 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,854 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,855 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,855 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,857 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,857 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,857 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,858 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,886 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:39:42,892 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:39:42,893 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:39:42,894 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:39:42,894 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:39:42,895 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:39:42,895 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:39:42,895 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:39:42,896 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:39:42,896 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:39:42,921 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,931 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,932 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,935 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] [2023-11-23 07:39:42,975 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,976 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,976 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,976 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,976 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,976 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,977 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,977 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,977 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,977 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,977 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,978 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,978 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,978 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,978 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,979 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,979 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,980 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,980 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,983 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,984 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:42,984 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:43,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:39:43,316 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:43,317 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:43,317 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:43,317 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:43,317 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:43,317 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:43,317 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:43,317 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:43,317 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:43,318 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:43,318 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:43,318 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:43,318 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:43,318 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:43,318 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:43,324 INFO L206 MainTranslator]: Completed translation [2023-11-23 07:39:43,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:43 WrapperNode [2023-11-23 07:39:43,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 07:39:43,325 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 07:39:43,325 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 07:39:43,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 07:39:43,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:43" (1/1) ... [2023-11-23 07:39:43,418 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:43" (1/1) ... [2023-11-23 07:39:43,475 INFO L138 Inliner]: procedures = 696, calls = 1888, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 925 [2023-11-23 07:39:43,476 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 07:39:43,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 07:39:43,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 07:39:43,483 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 07:39:43,491 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:43" (1/1) ... [2023-11-23 07:39:43,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:43" (1/1) ... [2023-11-23 07:39:43,508 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:43" (1/1) ... [2023-11-23 07:39:43,583 INFO L188 MemorySlicer]: Split 335 memory accesses to 7 slices as follows [2, 3, 236, 56, 18, 17, 3]. 70 percent of accesses are in the largest equivalence class. The 251 initializations are split as follows [2, 1, 236, 0, 5, 4, 3]. The 14 writes are split as follows [0, 1, 0, 4, 6, 3, 0]. [2023-11-23 07:39:43,584 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:43" (1/1) ... [2023-11-23 07:39:43,585 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:43" (1/1) ... [2023-11-23 07:39:43,619 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:43" (1/1) ... [2023-11-23 07:39:43,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:43" (1/1) ... [2023-11-23 07:39:43,629 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:43" (1/1) ... [2023-11-23 07:39:43,633 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:43" (1/1) ... [2023-11-23 07:39:43,643 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 07:39:43,644 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 07:39:43,644 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 07:39:43,644 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 07:39:43,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:43" (1/1) ... [2023-11-23 07:39:43,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:39:43,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:43,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 07:39:43,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 07:39:43,724 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2023-11-23 07:39:43,724 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2023-11-23 07:39:43,725 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-23 07:39:43,725 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-23 07:39:43,725 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-23 07:39:43,725 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-23 07:39:43,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 07:39:43,725 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-23 07:39:43,725 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-23 07:39:43,725 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-23 07:39:43,725 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-23 07:39:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 07:39:43,726 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 07:39:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-23 07:39:43,726 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-23 07:39:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 07:39:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 07:39:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 07:39:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 07:39:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 07:39:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 07:39:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 07:39:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 07:39:43,727 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 07:39:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 07:39:43,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 07:39:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 07:39:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 07:39:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 07:39:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 07:39:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 07:39:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 07:39:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 07:39:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 07:39:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 07:39:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-23 07:39:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-23 07:39:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-23 07:39:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-23 07:39:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 07:39:43,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 07:39:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 07:39:43,734 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 07:39:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 07:39:43,734 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 07:39:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-23 07:39:43,734 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-23 07:39:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-23 07:39:43,735 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-23 07:39:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-23 07:39:43,735 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-23 07:39:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 07:39:43,735 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 07:39:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-23 07:39:43,735 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-23 07:39:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 07:39:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 07:39:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 07:39:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 07:39:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 07:39:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 07:39:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 07:39:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 07:39:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 07:39:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 07:39:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 07:39:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 07:39:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 07:39:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 07:39:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 07:39:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-23 07:39:43,737 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-23 07:39:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 07:39:43,737 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 07:39:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 07:39:43,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 07:39:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 07:39:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 07:39:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 07:39:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 07:39:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 07:39:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 07:39:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 07:39:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-23 07:39:43,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-23 07:39:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 07:39:43,739 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 07:39:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 07:39:43,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 07:39:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 07:39:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 07:39:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 07:39:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 07:39:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 07:39:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 07:39:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 07:39:43,992 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 07:39:43,994 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 07:39:44,719 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 07:39:44,807 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 07:39:44,807 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-23 07:39:44,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:39:44 BoogieIcfgContainer [2023-11-23 07:39:44,808 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 07:39:44,811 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 07:39:44,811 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 07:39:44,813 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 07:39:44,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:39:41" (1/3) ... [2023-11-23 07:39:44,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3051576f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:39:44, skipping insertion in model container [2023-11-23 07:39:44,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:43" (2/3) ... [2023-11-23 07:39:44,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3051576f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:39:44, skipping insertion in model container [2023-11-23 07:39:44,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:39:44" (3/3) ... [2023-11-23 07:39:44,818 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2023-11-23 07:39:44,834 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 07:39:44,834 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 07:39:44,889 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 07:39:44,899 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;@27447dd6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 07:39:44,899 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 07:39:44,904 INFO L276 IsEmpty]: Start isEmpty. Operand has 319 states, 179 states have (on average 1.3016759776536313) internal successors, (233), 182 states have internal predecessors, (233), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-23 07:39:44,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-23 07:39:44,919 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:44,920 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:44,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:44,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:44,925 INFO L85 PathProgramCache]: Analyzing trace with hash -397418944, now seen corresponding path program 1 times [2023-11-23 07:39:44,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:44,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330409478] [2023-11-23 07:39:44,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:44,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:45,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:39:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:45,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:39:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:45,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:45,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:39:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:45,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:39:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:45,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:45,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:39:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:45,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:39:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:45,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:45,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:39:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:45,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:39:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:45,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 07:39:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:45,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 07:39:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:45,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 07:39:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:45,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 07:39:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:45,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 07:39:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:45,851 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-11-23 07:39:45,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:45,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330409478] [2023-11-23 07:39:45,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330409478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:45,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:45,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:39:45,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769628747] [2023-11-23 07:39:45,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:45,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:39:45,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:45,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:39:45,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:39:45,887 INFO L87 Difference]: Start difference. First operand has 319 states, 179 states have (on average 1.3016759776536313) internal successors, (233), 182 states have internal predecessors, (233), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 07:39:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:48,012 INFO L93 Difference]: Finished difference Result 740 states and 1252 transitions. [2023-11-23 07:39:48,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 07:39:48,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 96 [2023-11-23 07:39:48,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:48,040 INFO L225 Difference]: With dead ends: 740 [2023-11-23 07:39:48,046 INFO L226 Difference]: Without dead ends: 427 [2023-11-23 07:39:48,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:39:48,060 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 238 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:48,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 415 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-23 07:39:48,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-11-23 07:39:48,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 316. [2023-11-23 07:39:48,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 178 states have (on average 1.252808988764045) internal successors, (223), 180 states have internal predecessors, (223), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2023-11-23 07:39:48,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 447 transitions. [2023-11-23 07:39:48,188 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 447 transitions. Word has length 96 [2023-11-23 07:39:48,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:48,188 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 447 transitions. [2023-11-23 07:39:48,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 07:39:48,189 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 447 transitions. [2023-11-23 07:39:48,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-23 07:39:48,192 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:48,192 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:48,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 07:39:48,193 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:48,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:48,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1798619826, now seen corresponding path program 1 times [2023-11-23 07:39:48,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:48,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182363609] [2023-11-23 07:39:48,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:48,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:48,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:39:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:48,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:39:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:48,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:48,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:39:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:48,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:39:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:48,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:48,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:39:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:48,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:39:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:48,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:48,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:39:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:48,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:39:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:48,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 07:39:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:48,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 07:39:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:48,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 07:39:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:48,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 07:39:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:48,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 07:39:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:48,809 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-23 07:39:48,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:48,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182363609] [2023-11-23 07:39:48,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182363609] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:39:48,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099195787] [2023-11-23 07:39:48,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:48,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:48,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:48,812 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:48,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 07:39:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:49,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 2431 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 07:39:49,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:49,378 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-11-23 07:39:49,379 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:49,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099195787] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:49,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:39:49,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-11-23 07:39:49,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959153208] [2023-11-23 07:39:49,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:49,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 07:39:49,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:49,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 07:39:49,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:39:49,382 INFO L87 Difference]: Start difference. First operand 316 states and 447 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 07:39:49,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:49,596 INFO L93 Difference]: Finished difference Result 395 states and 550 transitions. [2023-11-23 07:39:49,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 07:39:49,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 96 [2023-11-23 07:39:49,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:49,599 INFO L225 Difference]: With dead ends: 395 [2023-11-23 07:39:49,599 INFO L226 Difference]: Without dead ends: 317 [2023-11-23 07:39:49,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:39:49,600 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 0 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:49,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 835 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:39:49,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-11-23 07:39:49,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2023-11-23 07:39:49,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 179 states have (on average 1.2513966480446927) internal successors, (224), 181 states have internal predecessors, (224), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2023-11-23 07:39:49,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 448 transitions. [2023-11-23 07:39:49,626 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 448 transitions. Word has length 96 [2023-11-23 07:39:49,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:49,627 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 448 transitions. [2023-11-23 07:39:49,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 07:39:49,627 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 448 transitions. [2023-11-23 07:39:49,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-23 07:39:49,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:49,630 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:49,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:49,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:49,846 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:49,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:49,846 INFO L85 PathProgramCache]: Analyzing trace with hash 37371445, now seen corresponding path program 1 times [2023-11-23 07:39:49,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:49,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361933237] [2023-11-23 07:39:49,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:49,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:39:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:39:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:39:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:39:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:39:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:39:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:39:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:39:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 07:39:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 07:39:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 07:39:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 07:39:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 07:39:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-23 07:39:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 07:39:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 07:39:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,519 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-23 07:39:50,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:50,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361933237] [2023-11-23 07:39:50,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361933237] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:39:50,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859069159] [2023-11-23 07:39:50,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:50,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:50,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:50,521 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:50,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 07:39:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:50,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 2635 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 07:39:50,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:51,034 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-11-23 07:39:51,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:51,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859069159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:51,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:39:51,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-11-23 07:39:51,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075356247] [2023-11-23 07:39:51,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:51,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:39:51,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:51,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:39:51,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:39:51,038 INFO L87 Difference]: Start difference. First operand 317 states and 448 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 07:39:51,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:51,367 INFO L93 Difference]: Finished difference Result 605 states and 865 transitions. [2023-11-23 07:39:51,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:39:51,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 115 [2023-11-23 07:39:51,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:51,370 INFO L225 Difference]: With dead ends: 605 [2023-11-23 07:39:51,370 INFO L226 Difference]: Without dead ends: 319 [2023-11-23 07:39:51,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:39:51,372 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 44 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:51,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 1535 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 07:39:51,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-11-23 07:39:51,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2023-11-23 07:39:51,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 180 states have (on average 1.25) internal successors, (225), 183 states have internal predecessors, (225), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (119), 111 states have call predecessors, (119), 111 states have call successors, (119) [2023-11-23 07:39:51,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 457 transitions. [2023-11-23 07:39:51,394 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 457 transitions. Word has length 115 [2023-11-23 07:39:51,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:51,395 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 457 transitions. [2023-11-23 07:39:51,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 07:39:51,395 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 457 transitions. [2023-11-23 07:39:51,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-23 07:39:51,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:51,397 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:51,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:51,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-23 07:39:51,612 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:51,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:51,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1276196470, now seen corresponding path program 1 times [2023-11-23 07:39:51,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:51,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812916240] [2023-11-23 07:39:51,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:51,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:51,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:39:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:51,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:39:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:51,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:39:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:39:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:39:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:39:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:39:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:39:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 07:39:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 07:39:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:39:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 07:39:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 07:39:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 07:39:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 07:39:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-23 07:39:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-23 07:39:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,316 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2023-11-23 07:39:52,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:52,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812916240] [2023-11-23 07:39:52,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812916240] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:39:52,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741650596] [2023-11-23 07:39:52,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:52,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:52,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:52,318 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:52,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 07:39:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:52,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 2733 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 07:39:52,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:52,870 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-11-23 07:39:52,870 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:52,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741650596] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:52,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:39:52,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-11-23 07:39:52,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077690313] [2023-11-23 07:39:52,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:52,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:39:52,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:52,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:39:52,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:39:52,872 INFO L87 Difference]: Start difference. First operand 319 states and 457 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-23 07:39:53,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:53,339 INFO L93 Difference]: Finished difference Result 628 states and 920 transitions. [2023-11-23 07:39:53,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:39:53,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 123 [2023-11-23 07:39:53,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:53,342 INFO L225 Difference]: With dead ends: 628 [2023-11-23 07:39:53,342 INFO L226 Difference]: Without dead ends: 340 [2023-11-23 07:39:53,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:39:53,345 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 80 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:53,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 2281 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 07:39:53,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-11-23 07:39:53,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 338. [2023-11-23 07:39:53,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 196 states have (on average 1.260204081632653) internal successors, (247), 199 states have internal predecessors, (247), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2023-11-23 07:39:53,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 494 transitions. [2023-11-23 07:39:53,373 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 494 transitions. Word has length 123 [2023-11-23 07:39:53,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:53,374 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 494 transitions. [2023-11-23 07:39:53,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-23 07:39:53,374 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 494 transitions. [2023-11-23 07:39:53,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-23 07:39:53,376 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:53,376 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:53,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:53,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:53,592 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:53,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:53,593 INFO L85 PathProgramCache]: Analyzing trace with hash 843859322, now seen corresponding path program 1 times [2023-11-23 07:39:53,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:53,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645603432] [2023-11-23 07:39:53,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:53,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:53,655 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:53,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [502496651] [2023-11-23 07:39:53,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:53,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:53,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:53,673 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:53,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 07:39:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:54,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 2920 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 07:39:54,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:54,245 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-11-23 07:39:54,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:54,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:54,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645603432] [2023-11-23 07:39:54,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:54,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502496651] [2023-11-23 07:39:54,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502496651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:54,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:54,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:39:54,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880253568] [2023-11-23 07:39:54,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:54,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:39:54,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:54,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:39:54,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:39:54,248 INFO L87 Difference]: Start difference. First operand 338 states and 494 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-23 07:39:54,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:54,570 INFO L93 Difference]: Finished difference Result 651 states and 968 transitions. [2023-11-23 07:39:54,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:39:54,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 136 [2023-11-23 07:39:54,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:54,588 INFO L225 Difference]: With dead ends: 651 [2023-11-23 07:39:54,588 INFO L226 Difference]: Without dead ends: 344 [2023-11-23 07:39:54,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 131 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 07:39:54,591 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 63 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:54,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1882 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 07:39:54,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-11-23 07:39:54,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 338. [2023-11-23 07:39:54,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 196 states have (on average 1.260204081632653) internal successors, (247), 199 states have internal predecessors, (247), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2023-11-23 07:39:54,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 494 transitions. [2023-11-23 07:39:54,612 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 494 transitions. Word has length 136 [2023-11-23 07:39:54,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:54,614 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 494 transitions. [2023-11-23 07:39:54,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-23 07:39:54,614 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 494 transitions. [2023-11-23 07:39:54,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-23 07:39:54,617 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:54,617 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:54,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:54,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:54,832 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:54,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:54,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1745306280, now seen corresponding path program 1 times [2023-11-23 07:39:54,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:54,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265543393] [2023-11-23 07:39:54,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:54,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:54,966 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:54,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [327748679] [2023-11-23 07:39:54,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:54,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:54,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:54,981 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:55,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 07:39:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:55,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 3037 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 07:39:55,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:55,515 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-11-23 07:39:55,516 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:55,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:55,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265543393] [2023-11-23 07:39:55,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:55,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327748679] [2023-11-23 07:39:55,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327748679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:55,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:55,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:39:55,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208607661] [2023-11-23 07:39:55,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:55,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:39:55,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:55,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:39:55,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:39:55,518 INFO L87 Difference]: Start difference. First operand 338 states and 494 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 07:39:55,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:55,692 INFO L93 Difference]: Finished difference Result 653 states and 978 transitions. [2023-11-23 07:39:55,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:39:55,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 152 [2023-11-23 07:39:55,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:55,695 INFO L225 Difference]: With dead ends: 653 [2023-11-23 07:39:55,695 INFO L226 Difference]: Without dead ends: 346 [2023-11-23 07:39:55,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:39:55,697 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 3 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:55,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1247 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:39:55,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2023-11-23 07:39:55,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 342. [2023-11-23 07:39:55,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 200 states have (on average 1.255) internal successors, (251), 203 states have internal predecessors, (251), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2023-11-23 07:39:55,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 498 transitions. [2023-11-23 07:39:55,754 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 498 transitions. Word has length 152 [2023-11-23 07:39:55,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:55,754 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 498 transitions. [2023-11-23 07:39:55,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 07:39:55,755 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 498 transitions. [2023-11-23 07:39:55,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-23 07:39:55,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:55,756 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:55,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-23 07:39:55,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:55,975 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:55,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:55,975 INFO L85 PathProgramCache]: Analyzing trace with hash 2057034842, now seen corresponding path program 1 times [2023-11-23 07:39:55,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:55,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869693959] [2023-11-23 07:39:55,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:55,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:56,021 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:56,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1392867019] [2023-11-23 07:39:56,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:56,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:56,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:56,023 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:56,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 07:39:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:56,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 3032 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 07:39:56,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:56,638 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-11-23 07:39:56,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:56,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:56,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869693959] [2023-11-23 07:39:56,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:56,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392867019] [2023-11-23 07:39:56,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392867019] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:56,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:56,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:39:56,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727041200] [2023-11-23 07:39:56,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:56,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:39:56,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:56,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:39:56,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:39:56,641 INFO L87 Difference]: Start difference. First operand 342 states and 498 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2023-11-23 07:39:57,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:57,193 INFO L93 Difference]: Finished difference Result 671 states and 987 transitions. [2023-11-23 07:39:57,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:39:57,194 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 152 [2023-11-23 07:39:57,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:57,196 INFO L225 Difference]: With dead ends: 671 [2023-11-23 07:39:57,196 INFO L226 Difference]: Without dead ends: 360 [2023-11-23 07:39:57,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:39:57,199 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 123 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 2529 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:57,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 2529 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:39:57,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-11-23 07:39:57,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 342. [2023-11-23 07:39:57,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 200 states have (on average 1.255) internal successors, (251), 203 states have internal predecessors, (251), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2023-11-23 07:39:57,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 498 transitions. [2023-11-23 07:39:57,215 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 498 transitions. Word has length 152 [2023-11-23 07:39:57,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:57,217 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 498 transitions. [2023-11-23 07:39:57,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2023-11-23 07:39:57,217 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 498 transitions. [2023-11-23 07:39:57,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-23 07:39:57,218 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:57,218 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:57,244 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-23 07:39:57,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:57,446 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:57,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:57,446 INFO L85 PathProgramCache]: Analyzing trace with hash -615519952, now seen corresponding path program 1 times [2023-11-23 07:39:57,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:57,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166227295] [2023-11-23 07:39:57,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:57,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:57,515 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:57,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [514321372] [2023-11-23 07:39:57,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:57,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:57,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:57,532 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:57,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 07:39:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:58,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 3219 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 07:39:58,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:58,205 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-23 07:39:58,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:58,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:58,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166227295] [2023-11-23 07:39:58,206 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:58,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514321372] [2023-11-23 07:39:58,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514321372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:58,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:58,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 07:39:58,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20424376] [2023-11-23 07:39:58,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:58,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:39:58,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:58,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:39:58,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:39:58,208 INFO L87 Difference]: Start difference. First operand 342 states and 498 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-23 07:39:58,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:58,661 INFO L93 Difference]: Finished difference Result 629 states and 929 transitions. [2023-11-23 07:39:58,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:39:58,662 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 165 [2023-11-23 07:39:58,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:58,664 INFO L225 Difference]: With dead ends: 629 [2023-11-23 07:39:58,664 INFO L226 Difference]: Without dead ends: 344 [2023-11-23 07:39:58,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:39:58,666 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 98 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:58,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 2241 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 07:39:58,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-11-23 07:39:58,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2023-11-23 07:39:58,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 201 states have (on average 1.2537313432835822) internal successors, (252), 205 states have internal predecessors, (252), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2023-11-23 07:39:58,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 505 transitions. [2023-11-23 07:39:58,682 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 505 transitions. Word has length 165 [2023-11-23 07:39:58,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:58,682 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 505 transitions. [2023-11-23 07:39:58,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-23 07:39:58,683 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 505 transitions. [2023-11-23 07:39:58,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-23 07:39:58,684 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:58,684 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:58,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:58,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:58,902 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:58,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:58,902 INFO L85 PathProgramCache]: Analyzing trace with hash -599062957, now seen corresponding path program 1 times [2023-11-23 07:39:58,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:58,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573601223] [2023-11-23 07:39:58,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:58,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:58,972 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:58,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1748538589] [2023-11-23 07:39:58,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:58,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:58,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:58,988 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:59,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 07:39:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:59,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 3504 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 07:39:59,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:59,670 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-11-23 07:39:59,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:59,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:59,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573601223] [2023-11-23 07:39:59,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:59,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748538589] [2023-11-23 07:39:59,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748538589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:59,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:59,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:39:59,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898622207] [2023-11-23 07:39:59,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:59,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:39:59,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:59,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:39:59,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:39:59,678 INFO L87 Difference]: Start difference. First operand 344 states and 505 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-23 07:40:00,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:00,233 INFO L93 Difference]: Finished difference Result 634 states and 944 transitions. [2023-11-23 07:40:00,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:40:00,233 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 186 [2023-11-23 07:40:00,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:00,235 INFO L225 Difference]: With dead ends: 634 [2023-11-23 07:40:00,235 INFO L226 Difference]: Without dead ends: 347 [2023-11-23 07:40:00,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:40:00,237 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 117 mSDsluCounter, 2179 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:00,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 2570 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:40:00,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-11-23 07:40:00,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 345. [2023-11-23 07:40:00,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 202 states have (on average 1.2524752475247525) internal successors, (253), 206 states have internal predecessors, (253), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2023-11-23 07:40:00,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 506 transitions. [2023-11-23 07:40:00,287 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 506 transitions. Word has length 186 [2023-11-23 07:40:00,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:00,287 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 506 transitions. [2023-11-23 07:40:00,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-23 07:40:00,288 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 506 transitions. [2023-11-23 07:40:00,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-11-23 07:40:00,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:00,289 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:00,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:00,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-23 07:40:00,490 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:00,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:00,490 INFO L85 PathProgramCache]: Analyzing trace with hash -429075093, now seen corresponding path program 2 times [2023-11-23 07:40:00,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:00,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319539971] [2023-11-23 07:40:00,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:00,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:00,546 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:00,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [78499490] [2023-11-23 07:40:00,546 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:40:00,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:00,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:00,547 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:00,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 07:40:01,407 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:40:01,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:40:01,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 3803 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 07:40:01,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:01,502 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-23 07:40:01,502 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:01,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:01,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319539971] [2023-11-23 07:40:01,503 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:01,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78499490] [2023-11-23 07:40:01,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78499490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:01,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:01,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 07:40:01,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138506366] [2023-11-23 07:40:01,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:01,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:40:01,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:01,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:40:01,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:40:01,506 INFO L87 Difference]: Start difference. First operand 345 states and 506 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 7 states have internal predecessors, (63), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-23 07:40:02,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:02,072 INFO L93 Difference]: Finished difference Result 626 states and 928 transitions. [2023-11-23 07:40:02,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:40:02,073 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 7 states have internal predecessors, (63), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 215 [2023-11-23 07:40:02,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:02,075 INFO L225 Difference]: With dead ends: 626 [2023-11-23 07:40:02,075 INFO L226 Difference]: Without dead ends: 347 [2023-11-23 07:40:02,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:40:02,077 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 125 mSDsluCounter, 2572 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 2966 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:02,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 2966 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:40:02,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-11-23 07:40:02,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2023-11-23 07:40:02,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 203 states have (on average 1.251231527093596) internal successors, (254), 208 states have internal predecessors, (254), 115 states have call successors, (115), 24 states have call predecessors, (115), 27 states have return successors, (142), 114 states have call predecessors, (142), 113 states have call successors, (142) [2023-11-23 07:40:02,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 511 transitions. [2023-11-23 07:40:02,092 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 511 transitions. Word has length 215 [2023-11-23 07:40:02,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:02,092 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 511 transitions. [2023-11-23 07:40:02,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 7 states have internal predecessors, (63), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-23 07:40:02,093 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 511 transitions. [2023-11-23 07:40:02,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-11-23 07:40:02,094 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:02,094 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:02,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:02,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 07:40:02,310 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:02,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:02,311 INFO L85 PathProgramCache]: Analyzing trace with hash 2049685455, now seen corresponding path program 1 times [2023-11-23 07:40:02,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:02,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141082502] [2023-11-23 07:40:02,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:02,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:02,364 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:02,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28676641] [2023-11-23 07:40:02,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:02,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:02,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:02,381 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:02,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 07:40:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:03,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 3625 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 07:40:03,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:03,132 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 169 proven. 3 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-23 07:40:03,132 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:40:03,397 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 25 proven. 23 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-11-23 07:40:03,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:03,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141082502] [2023-11-23 07:40:03,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:03,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28676641] [2023-11-23 07:40:03,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28676641] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:40:03,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:40:03,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-11-23 07:40:03,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455444682] [2023-11-23 07:40:03,398 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 07:40:03,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 07:40:03,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:03,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 07:40:03,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:40:03,399 INFO L87 Difference]: Start difference. First operand 347 states and 511 transitions. Second operand has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 12 states have internal predecessors, (106), 9 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (40), 5 states have call predecessors, (40), 9 states have call successors, (40) [2023-11-23 07:40:04,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:04,308 INFO L93 Difference]: Finished difference Result 658 states and 985 transitions. [2023-11-23 07:40:04,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:40:04,308 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 12 states have internal predecessors, (106), 9 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (40), 5 states have call predecessors, (40), 9 states have call successors, (40) Word has length 205 [2023-11-23 07:40:04,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:04,314 INFO L225 Difference]: With dead ends: 658 [2023-11-23 07:40:04,314 INFO L226 Difference]: Without dead ends: 368 [2023-11-23 07:40:04,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 395 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:40:04,317 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 150 mSDsluCounter, 3665 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 4065 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:04,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 4065 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 07:40:04,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-11-23 07:40:04,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 362. [2023-11-23 07:40:04,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 217 states have (on average 1.2580645161290323) internal successors, (273), 221 states have internal predecessors, (273), 116 states have call successors, (116), 24 states have call predecessors, (116), 27 states have return successors, (143), 116 states have call predecessors, (143), 114 states have call successors, (143) [2023-11-23 07:40:04,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 532 transitions. [2023-11-23 07:40:04,336 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 532 transitions. Word has length 205 [2023-11-23 07:40:04,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:04,336 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 532 transitions. [2023-11-23 07:40:04,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 12 states have internal predecessors, (106), 9 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (40), 5 states have call predecessors, (40), 9 states have call successors, (40) [2023-11-23 07:40:04,336 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 532 transitions. [2023-11-23 07:40:04,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-11-23 07:40:04,339 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:04,339 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:04,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:04,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 07:40:04,559 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:04,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:04,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2059062805, now seen corresponding path program 1 times [2023-11-23 07:40:04,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:04,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771997770] [2023-11-23 07:40:04,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:04,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:04,628 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:04,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [528465189] [2023-11-23 07:40:04,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:04,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:04,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:04,630 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:04,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 07:40:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:05,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 4373 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 07:40:05,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:05,509 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2023-11-23 07:40:05,509 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:05,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:05,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771997770] [2023-11-23 07:40:05,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:05,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528465189] [2023-11-23 07:40:05,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528465189] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:05,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:05,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 07:40:05,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200070895] [2023-11-23 07:40:05,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:05,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:40:05,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:05,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:40:05,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:40:05,513 INFO L87 Difference]: Start difference. First operand 362 states and 532 transitions. Second operand has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-23 07:40:06,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:06,119 INFO L93 Difference]: Finished difference Result 661 states and 981 transitions. [2023-11-23 07:40:06,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:40:06,120 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 257 [2023-11-23 07:40:06,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:06,123 INFO L225 Difference]: With dead ends: 661 [2023-11-23 07:40:06,123 INFO L226 Difference]: Without dead ends: 365 [2023-11-23 07:40:06,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:40:06,125 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 147 mSDsluCounter, 2890 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 3277 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:06,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 3277 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:40:06,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2023-11-23 07:40:06,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 363. [2023-11-23 07:40:06,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 218 states have (on average 1.2568807339449541) internal successors, (274), 222 states have internal predecessors, (274), 116 states have call successors, (116), 24 states have call predecessors, (116), 27 states have return successors, (143), 116 states have call predecessors, (143), 114 states have call successors, (143) [2023-11-23 07:40:06,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 533 transitions. [2023-11-23 07:40:06,144 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 533 transitions. Word has length 257 [2023-11-23 07:40:06,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:06,145 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 533 transitions. [2023-11-23 07:40:06,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-23 07:40:06,145 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 533 transitions. [2023-11-23 07:40:06,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-11-23 07:40:06,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:06,147 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:06,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:06,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 07:40:06,367 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:06,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:06,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1240080388, now seen corresponding path program 1 times [2023-11-23 07:40:06,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:06,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180542553] [2023-11-23 07:40:06,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:06,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:06,434 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:06,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2146039261] [2023-11-23 07:40:06,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:06,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:06,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:06,436 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:06,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 07:40:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:07,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 3705 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 07:40:07,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:07,243 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-23 07:40:07,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:07,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:07,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180542553] [2023-11-23 07:40:07,244 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:07,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146039261] [2023-11-23 07:40:07,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146039261] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:07,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:07,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 07:40:07,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545587252] [2023-11-23 07:40:07,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:07,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:40:07,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:07,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:40:07,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:40:07,251 INFO L87 Difference]: Start difference. First operand 363 states and 533 transitions. Second operand has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 6 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 5 states have call predecessors, (26), 6 states have call successors, (26) [2023-11-23 07:40:08,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:08,088 INFO L93 Difference]: Finished difference Result 669 states and 990 transitions. [2023-11-23 07:40:08,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:40:08,089 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 6 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 5 states have call predecessors, (26), 6 states have call successors, (26) Word has length 220 [2023-11-23 07:40:08,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:08,091 INFO L225 Difference]: With dead ends: 669 [2023-11-23 07:40:08,091 INFO L226 Difference]: Without dead ends: 363 [2023-11-23 07:40:08,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:40:08,093 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 177 mSDsluCounter, 2801 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 3175 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:08,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 3175 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 07:40:08,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-23 07:40:08,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 345. [2023-11-23 07:40:08,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 202 states have (on average 1.2524752475247525) internal successors, (253), 206 states have internal predecessors, (253), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (134), 114 states have call predecessors, (134), 113 states have call successors, (134) [2023-11-23 07:40:08,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 502 transitions. [2023-11-23 07:40:08,120 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 502 transitions. Word has length 220 [2023-11-23 07:40:08,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:08,120 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 502 transitions. [2023-11-23 07:40:08,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 6 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 5 states have call predecessors, (26), 6 states have call successors, (26) [2023-11-23 07:40:08,121 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 502 transitions. [2023-11-23 07:40:08,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-11-23 07:40:08,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:08,134 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:08,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:08,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 07:40:08,353 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:08,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:08,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1955981372, now seen corresponding path program 2 times [2023-11-23 07:40:08,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:08,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451534601] [2023-11-23 07:40:08,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:08,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:08,469 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:08,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1877723833] [2023-11-23 07:40:08,470 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:40:08,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:08,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:08,484 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:08,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 07:40:09,217 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:40:09,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:40:09,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 3892 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 07:40:09,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:09,290 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2023-11-23 07:40:09,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:09,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:09,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451534601] [2023-11-23 07:40:09,291 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:09,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877723833] [2023-11-23 07:40:09,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877723833] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:09,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:09,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:40:09,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239006495] [2023-11-23 07:40:09,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:09,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:40:09,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:09,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:40:09,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:40:09,293 INFO L87 Difference]: Start difference. First operand 345 states and 502 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-23 07:40:09,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:09,723 INFO L93 Difference]: Finished difference Result 599 states and 877 transitions. [2023-11-23 07:40:09,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:40:09,724 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) Word has length 233 [2023-11-23 07:40:09,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:09,726 INFO L225 Difference]: With dead ends: 599 [2023-11-23 07:40:09,726 INFO L226 Difference]: Without dead ends: 347 [2023-11-23 07:40:09,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:40:09,727 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 114 mSDsluCounter, 2204 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 2599 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:09,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 2599 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 07:40:09,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-11-23 07:40:09,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2023-11-23 07:40:09,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 203 states have (on average 1.251231527093596) internal successors, (254), 208 states have internal predecessors, (254), 115 states have call successors, (115), 24 states have call predecessors, (115), 27 states have return successors, (136), 114 states have call predecessors, (136), 113 states have call successors, (136) [2023-11-23 07:40:09,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 505 transitions. [2023-11-23 07:40:09,742 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 505 transitions. Word has length 233 [2023-11-23 07:40:09,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:09,742 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 505 transitions. [2023-11-23 07:40:09,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-23 07:40:09,743 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 505 transitions. [2023-11-23 07:40:09,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-11-23 07:40:09,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:09,744 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:09,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:09,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 07:40:09,982 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:09,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:09,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1396040903, now seen corresponding path program 1 times [2023-11-23 07:40:09,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:09,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189803062] [2023-11-23 07:40:09,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:09,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:10,042 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:10,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1588731653] [2023-11-23 07:40:10,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:10,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:10,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:10,044 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:10,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 07:40:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:10,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 4177 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 07:40:10,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:10,899 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2023-11-23 07:40:10,900 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:10,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:10,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189803062] [2023-11-23 07:40:10,900 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:10,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588731653] [2023-11-23 07:40:10,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588731653] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:10,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:10,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 07:40:10,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561313234] [2023-11-23 07:40:10,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:10,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:40:10,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:10,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:40:10,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:40:10,902 INFO L87 Difference]: Start difference. First operand 347 states and 505 transitions. Second operand has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-23 07:40:11,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:11,445 INFO L93 Difference]: Finished difference Result 601 states and 878 transitions. [2023-11-23 07:40:11,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:40:11,446 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 254 [2023-11-23 07:40:11,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:11,448 INFO L225 Difference]: With dead ends: 601 [2023-11-23 07:40:11,448 INFO L226 Difference]: Without dead ends: 347 [2023-11-23 07:40:11,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:40:11,450 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 133 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2918 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:11,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2918 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:40:11,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-11-23 07:40:11,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 345. [2023-11-23 07:40:11,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 202 states have (on average 1.2524752475247525) internal successors, (253), 206 states have internal predecessors, (253), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2023-11-23 07:40:11,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 500 transitions. [2023-11-23 07:40:11,465 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 500 transitions. Word has length 254 [2023-11-23 07:40:11,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:11,465 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 500 transitions. [2023-11-23 07:40:11,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-23 07:40:11,465 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 500 transitions. [2023-11-23 07:40:11,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-11-23 07:40:11,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:11,467 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:11,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:11,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:11,686 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:11,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:11,686 INFO L85 PathProgramCache]: Analyzing trace with hash -561662233, now seen corresponding path program 1 times [2023-11-23 07:40:11,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:11,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226145012] [2023-11-23 07:40:11,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:11,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:11,750 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:11,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859849378] [2023-11-23 07:40:11,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:11,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:11,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:11,751 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:11,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 07:40:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:12,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 4102 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 07:40:12,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:12,615 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 210 proven. 3 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2023-11-23 07:40:12,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:40:12,903 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 50 proven. 9 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2023-11-23 07:40:12,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:12,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226145012] [2023-11-23 07:40:12,904 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:12,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859849378] [2023-11-23 07:40:12,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859849378] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:40:12,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:40:12,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2023-11-23 07:40:12,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930097416] [2023-11-23 07:40:12,905 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 07:40:12,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 07:40:12,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:12,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 07:40:12,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-11-23 07:40:12,906 INFO L87 Difference]: Start difference. First operand 345 states and 500 transitions. Second operand has 16 states, 14 states have (on average 7.571428571428571) internal successors, (106), 14 states have internal predecessors, (106), 11 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (45), 7 states have call predecessors, (45), 11 states have call successors, (45) [2023-11-23 07:40:13,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:13,742 INFO L93 Difference]: Finished difference Result 618 states and 902 transitions. [2023-11-23 07:40:13,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:40:13,742 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 7.571428571428571) internal successors, (106), 14 states have internal predecessors, (106), 11 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (45), 7 states have call predecessors, (45), 11 states have call successors, (45) Word has length 257 [2023-11-23 07:40:13,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:13,745 INFO L225 Difference]: With dead ends: 618 [2023-11-23 07:40:13,745 INFO L226 Difference]: Without dead ends: 366 [2023-11-23 07:40:13,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 497 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2023-11-23 07:40:13,746 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 195 mSDsluCounter, 4052 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 4449 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:13,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 4449 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 07:40:13,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-11-23 07:40:13,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 363. [2023-11-23 07:40:13,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 218 states have (on average 1.2568807339449541) internal successors, (274), 222 states have internal predecessors, (274), 116 states have call successors, (116), 24 states have call predecessors, (116), 27 states have return successors, (137), 116 states have call predecessors, (137), 114 states have call successors, (137) [2023-11-23 07:40:13,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 527 transitions. [2023-11-23 07:40:13,765 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 527 transitions. Word has length 257 [2023-11-23 07:40:13,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:13,765 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 527 transitions. [2023-11-23 07:40:13,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 7.571428571428571) internal successors, (106), 14 states have internal predecessors, (106), 11 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (45), 7 states have call predecessors, (45), 11 states have call successors, (45) [2023-11-23 07:40:13,765 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 527 transitions. [2023-11-23 07:40:13,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-11-23 07:40:13,767 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:13,767 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:13,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:13,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-23 07:40:13,986 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:13,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:13,986 INFO L85 PathProgramCache]: Analyzing trace with hash 607179239, now seen corresponding path program 2 times [2023-11-23 07:40:13,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:13,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107400779] [2023-11-23 07:40:13,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:13,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:14,042 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:14,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1985982033] [2023-11-23 07:40:14,043 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:40:14,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:14,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:14,044 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:14,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 07:40:14,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:40:14,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:40:14,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 4289 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 07:40:14,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:14,997 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2023-11-23 07:40:14,998 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:14,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:14,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107400779] [2023-11-23 07:40:14,998 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:14,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985982033] [2023-11-23 07:40:14,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985982033] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:14,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:14,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 07:40:14,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107983505] [2023-11-23 07:40:14,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:14,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 07:40:14,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:15,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 07:40:15,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:40:15,000 INFO L87 Difference]: Start difference. First operand 363 states and 527 transitions. Second operand has 11 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 6 states have call predecessors, (26), 7 states have call successors, (26) [2023-11-23 07:40:15,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:15,843 INFO L93 Difference]: Finished difference Result 633 states and 921 transitions. [2023-11-23 07:40:15,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 07:40:15,844 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 6 states have call predecessors, (26), 7 states have call successors, (26) Word has length 270 [2023-11-23 07:40:15,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:15,846 INFO L225 Difference]: With dead ends: 633 [2023-11-23 07:40:15,846 INFO L226 Difference]: Without dead ends: 363 [2023-11-23 07:40:15,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:40:15,847 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 193 mSDsluCounter, 3129 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 3500 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:15,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 3500 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 07:40:15,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-23 07:40:15,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 345. [2023-11-23 07:40:15,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 202 states have (on average 1.2524752475247525) internal successors, (253), 206 states have internal predecessors, (253), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (130), 114 states have call predecessors, (130), 113 states have call successors, (130) [2023-11-23 07:40:15,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 498 transitions. [2023-11-23 07:40:15,862 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 498 transitions. Word has length 270 [2023-11-23 07:40:15,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:15,863 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 498 transitions. [2023-11-23 07:40:15,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 6 states have call predecessors, (26), 7 states have call successors, (26) [2023-11-23 07:40:15,863 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 498 transitions. [2023-11-23 07:40:15,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-11-23 07:40:15,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:15,865 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:15,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:16,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 07:40:16,087 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:16,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:16,087 INFO L85 PathProgramCache]: Analyzing trace with hash 2100028513, now seen corresponding path program 3 times [2023-11-23 07:40:16,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:16,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376417476] [2023-11-23 07:40:16,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:16,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:16,149 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:16,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [811891142] [2023-11-23 07:40:16,150 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 07:40:16,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:16,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:16,161 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:16,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-23 07:40:16,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 07:40:16,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:40:16,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 1973 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 07:40:16,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:16,905 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2023-11-23 07:40:16,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:16,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:16,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376417476] [2023-11-23 07:40:16,905 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:16,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811891142] [2023-11-23 07:40:16,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811891142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:16,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:16,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:40:16,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741651211] [2023-11-23 07:40:16,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:16,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:40:16,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:16,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:40:16,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:40:16,907 INFO L87 Difference]: Start difference. First operand 345 states and 498 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-23 07:40:17,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:17,237 INFO L93 Difference]: Finished difference Result 621 states and 914 transitions. [2023-11-23 07:40:17,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:40:17,237 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 283 [2023-11-23 07:40:17,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:17,239 INFO L225 Difference]: With dead ends: 621 [2023-11-23 07:40:17,239 INFO L226 Difference]: Without dead ends: 345 [2023-11-23 07:40:17,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:40:17,241 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 2 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:17,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1890 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 07:40:17,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2023-11-23 07:40:17,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2023-11-23 07:40:17,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 202 states have (on average 1.2524752475247525) internal successors, (253), 206 states have internal predecessors, (253), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (129), 114 states have call predecessors, (129), 113 states have call successors, (129) [2023-11-23 07:40:17,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 497 transitions. [2023-11-23 07:40:17,256 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 497 transitions. Word has length 283 [2023-11-23 07:40:17,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:17,256 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 497 transitions. [2023-11-23 07:40:17,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-23 07:40:17,256 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 497 transitions. [2023-11-23 07:40:17,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2023-11-23 07:40:17,258 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:17,258 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:17,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:17,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 07:40:17,474 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:17,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:17,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1301510123, now seen corresponding path program 1 times [2023-11-23 07:40:17,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:17,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350353737] [2023-11-23 07:40:17,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:17,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:17,573 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:17,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [365455800] [2023-11-23 07:40:17,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:17,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:17,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:17,588 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:17,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-23 07:40:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:18,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 4223 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 07:40:18,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:18,517 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 214 proven. 3 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-23 07:40:18,517 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:40:18,818 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 50 proven. 28 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2023-11-23 07:40:18,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:18,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350353737] [2023-11-23 07:40:18,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:18,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365455800] [2023-11-23 07:40:18,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365455800] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:40:18,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:40:18,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2023-11-23 07:40:18,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262816160] [2023-11-23 07:40:18,819 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 07:40:18,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-23 07:40:18,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:18,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-23 07:40:18,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2023-11-23 07:40:18,821 INFO L87 Difference]: Start difference. First operand 345 states and 497 transitions. Second operand has 18 states, 16 states have (on average 7.5) internal successors, (120), 14 states have internal predecessors, (120), 11 states have call successors, (46), 6 states have call predecessors, (46), 4 states have return successors, (41), 7 states have call predecessors, (41), 11 states have call successors, (41) [2023-11-23 07:40:19,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:19,929 INFO L93 Difference]: Finished difference Result 645 states and 936 transitions. [2023-11-23 07:40:19,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:40:19,930 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 7.5) internal successors, (120), 14 states have internal predecessors, (120), 11 states have call successors, (46), 6 states have call predecessors, (46), 4 states have return successors, (41), 7 states have call predecessors, (41), 11 states have call successors, (41) Word has length 263 [2023-11-23 07:40:19,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:19,933 INFO L225 Difference]: With dead ends: 645 [2023-11-23 07:40:19,933 INFO L226 Difference]: Without dead ends: 366 [2023-11-23 07:40:19,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 507 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2023-11-23 07:40:19,935 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 227 mSDsluCounter, 4581 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 4958 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:19,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 4958 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 07:40:19,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-11-23 07:40:19,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 360. [2023-11-23 07:40:19,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 216 states have (on average 1.2592592592592593) internal successors, (272), 219 states have internal predecessors, (272), 116 states have call successors, (116), 24 states have call predecessors, (116), 26 states have return successors, (130), 116 states have call predecessors, (130), 114 states have call successors, (130) [2023-11-23 07:40:19,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 518 transitions. [2023-11-23 07:40:19,954 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 518 transitions. Word has length 263 [2023-11-23 07:40:19,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:19,955 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 518 transitions. [2023-11-23 07:40:19,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 7.5) internal successors, (120), 14 states have internal predecessors, (120), 11 states have call successors, (46), 6 states have call predecessors, (46), 4 states have return successors, (41), 7 states have call predecessors, (41), 11 states have call successors, (41) [2023-11-23 07:40:19,955 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 518 transitions. [2023-11-23 07:40:19,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-11-23 07:40:19,957 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:19,958 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:19,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-23 07:40:20,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:20,181 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:20,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:20,182 INFO L85 PathProgramCache]: Analyzing trace with hash 2016954209, now seen corresponding path program 1 times [2023-11-23 07:40:20,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:20,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571233262] [2023-11-23 07:40:20,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:20,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:20,246 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:20,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [575303104] [2023-11-23 07:40:20,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:20,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:20,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:20,248 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:20,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-23 07:40:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:21,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 4971 conjuncts, 149 conjunts are in the unsatisfiable core [2023-11-23 07:40:21,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:21,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:40:21,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:40:22,062 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2023-11-23 07:40:22,063 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:22,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:22,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571233262] [2023-11-23 07:40:22,063 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:22,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575303104] [2023-11-23 07:40:22,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575303104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:22,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:22,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-23 07:40:22,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263060184] [2023-11-23 07:40:22,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:22,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 07:40:22,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:22,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 07:40:22,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:40:22,065 INFO L87 Difference]: Start difference. First operand 360 states and 518 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 7 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-23 07:40:26,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:26,012 INFO L93 Difference]: Finished difference Result 729 states and 1074 transitions. [2023-11-23 07:40:26,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 07:40:26,012 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 7 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) Word has length 315 [2023-11-23 07:40:26,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:26,015 INFO L225 Difference]: With dead ends: 729 [2023-11-23 07:40:26,015 INFO L226 Difference]: Without dead ends: 400 [2023-11-23 07:40:26,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2023-11-23 07:40:26,017 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 245 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 3309 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1825 SdHoareTripleChecker+Invalid, 3453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 3309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:26,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 1825 Invalid, 3453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 3309 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-23 07:40:26,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2023-11-23 07:40:26,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 389. [2023-11-23 07:40:26,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 244 states have (on average 1.2663934426229508) internal successors, (309), 246 states have internal predecessors, (309), 116 states have call successors, (116), 24 states have call predecessors, (116), 27 states have return successors, (141), 118 states have call predecessors, (141), 114 states have call successors, (141) [2023-11-23 07:40:26,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 566 transitions. [2023-11-23 07:40:26,038 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 566 transitions. Word has length 315 [2023-11-23 07:40:26,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:26,038 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 566 transitions. [2023-11-23 07:40:26,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 7 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-23 07:40:26,038 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 566 transitions. [2023-11-23 07:40:26,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-11-23 07:40:26,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:26,040 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:26,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-23 07:40:26,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:26,261 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:26,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:26,261 INFO L85 PathProgramCache]: Analyzing trace with hash -889504295, now seen corresponding path program 1 times [2023-11-23 07:40:26,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:26,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898035228] [2023-11-23 07:40:26,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:26,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:26,334 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:26,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [80574950] [2023-11-23 07:40:26,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:26,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:26,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:26,348 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:26,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-23 07:40:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:27,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 4951 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 07:40:27,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:27,329 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2023-11-23 07:40:27,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:27,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:27,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898035228] [2023-11-23 07:40:27,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:27,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80574950] [2023-11-23 07:40:27,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80574950] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:27,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:27,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:40:27,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30528334] [2023-11-23 07:40:27,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:27,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:40:27,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:27,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:40:27,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:40:27,333 INFO L87 Difference]: Start difference. First operand 389 states and 566 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-23 07:40:27,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:27,480 INFO L93 Difference]: Finished difference Result 750 states and 1134 transitions. [2023-11-23 07:40:27,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:40:27,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 315 [2023-11-23 07:40:27,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:27,483 INFO L225 Difference]: With dead ends: 750 [2023-11-23 07:40:27,483 INFO L226 Difference]: Without dead ends: 392 [2023-11-23 07:40:27,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:40:27,486 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 7 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1255 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:27,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1255 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:40:27,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2023-11-23 07:40:27,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 389. [2023-11-23 07:40:27,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 244 states have (on average 1.2622950819672132) internal successors, (308), 246 states have internal predecessors, (308), 116 states have call successors, (116), 24 states have call predecessors, (116), 27 states have return successors, (141), 118 states have call predecessors, (141), 114 states have call successors, (141) [2023-11-23 07:40:27,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 565 transitions. [2023-11-23 07:40:27,502 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 565 transitions. Word has length 315 [2023-11-23 07:40:27,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:27,502 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 565 transitions. [2023-11-23 07:40:27,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-23 07:40:27,503 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 565 transitions. [2023-11-23 07:40:27,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2023-11-23 07:40:27,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:27,504 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:27,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:27,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-23 07:40:27,724 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:27,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:27,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1929548127, now seen corresponding path program 1 times [2023-11-23 07:40:27,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:27,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295140969] [2023-11-23 07:40:27,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:27,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:27,837 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:27,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1128679048] [2023-11-23 07:40:27,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:27,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:27,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:27,853 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:27,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-23 07:40:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:29,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 4607 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 07:40:29,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:29,228 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2023-11-23 07:40:29,229 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:29,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:29,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295140969] [2023-11-23 07:40:29,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:29,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128679048] [2023-11-23 07:40:29,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128679048] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:29,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:29,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 07:40:29,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582423136] [2023-11-23 07:40:29,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:29,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 07:40:29,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:29,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 07:40:29,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:40:29,231 INFO L87 Difference]: Start difference. First operand 389 states and 565 transitions. Second operand has 12 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 7 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (27), 6 states have call predecessors, (27), 7 states have call successors, (27) [2023-11-23 07:40:30,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:30,131 INFO L93 Difference]: Finished difference Result 712 states and 1041 transitions. [2023-11-23 07:40:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 07:40:30,131 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 7 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (27), 6 states have call predecessors, (27), 7 states have call successors, (27) Word has length 293 [2023-11-23 07:40:30,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:30,135 INFO L225 Difference]: With dead ends: 712 [2023-11-23 07:40:30,135 INFO L226 Difference]: Without dead ends: 389 [2023-11-23 07:40:30,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2023-11-23 07:40:30,142 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 207 mSDsluCounter, 3470 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:30,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 3840 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 07:40:30,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2023-11-23 07:40:30,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 371. [2023-11-23 07:40:30,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 228 states have (on average 1.2587719298245614) internal successors, (287), 230 states have internal predecessors, (287), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (136), 116 states have call predecessors, (136), 113 states have call successors, (136) [2023-11-23 07:40:30,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 538 transitions. [2023-11-23 07:40:30,159 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 538 transitions. Word has length 293 [2023-11-23 07:40:30,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:30,160 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 538 transitions. [2023-11-23 07:40:30,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 7 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (27), 6 states have call predecessors, (27), 7 states have call successors, (27) [2023-11-23 07:40:30,160 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 538 transitions. [2023-11-23 07:40:30,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-11-23 07:40:30,161 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:30,162 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:30,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:30,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-23 07:40:30,381 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:30,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:30,382 INFO L85 PathProgramCache]: Analyzing trace with hash -998872759, now seen corresponding path program 1 times [2023-11-23 07:40:30,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:30,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850046816] [2023-11-23 07:40:30,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:30,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:30,446 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:30,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [895874345] [2023-11-23 07:40:30,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:30,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:30,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:30,447 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:30,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-23 07:40:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:31,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 4991 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-23 07:40:31,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:31,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:40:32,168 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2023-11-23 07:40:32,168 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:32,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:32,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850046816] [2023-11-23 07:40:32,169 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:32,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895874345] [2023-11-23 07:40:32,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895874345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:32,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:32,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 07:40:32,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479859549] [2023-11-23 07:40:32,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:32,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 07:40:32,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:32,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 07:40:32,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:40:32,172 INFO L87 Difference]: Start difference. First operand 371 states and 538 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 11 states have internal predecessors, (97), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) [2023-11-23 07:40:34,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:34,729 INFO L93 Difference]: Finished difference Result 743 states and 1104 transitions. [2023-11-23 07:40:34,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 07:40:34,730 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 11 states have internal predecessors, (97), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) Word has length 323 [2023-11-23 07:40:34,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:34,732 INFO L225 Difference]: With dead ends: 743 [2023-11-23 07:40:34,732 INFO L226 Difference]: Without dead ends: 403 [2023-11-23 07:40:34,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:40:34,734 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 242 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 2705 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 2850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 2705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:34,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 1419 Invalid, 2850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 2705 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-23 07:40:34,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-11-23 07:40:34,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 387. [2023-11-23 07:40:34,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 243 states have (on average 1.2592592592592593) internal successors, (306), 244 states have internal predecessors, (306), 115 states have call successors, (115), 24 states have call predecessors, (115), 27 states have return successors, (147), 118 states have call predecessors, (147), 113 states have call successors, (147) [2023-11-23 07:40:34,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 568 transitions. [2023-11-23 07:40:34,750 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 568 transitions. Word has length 323 [2023-11-23 07:40:34,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:34,750 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 568 transitions. [2023-11-23 07:40:34,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 11 states have internal predecessors, (97), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) [2023-11-23 07:40:34,750 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 568 transitions. [2023-11-23 07:40:34,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-11-23 07:40:34,752 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:34,752 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:34,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-23 07:40:34,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:34,968 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:34,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:34,969 INFO L85 PathProgramCache]: Analyzing trace with hash 604996665, now seen corresponding path program 1 times [2023-11-23 07:40:34,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:34,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812696370] [2023-11-23 07:40:34,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:34,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:35,031 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:35,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1394925742] [2023-11-23 07:40:35,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:35,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:35,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:35,033 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:35,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-23 07:40:39,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:39,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 5023 conjuncts, 56 conjunts are in the unsatisfiable core [2023-11-23 07:40:39,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:39,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:40:39,318 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 468 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-11-23 07:40:39,320 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:39,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:39,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812696370] [2023-11-23 07:40:39,321 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:39,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394925742] [2023-11-23 07:40:39,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394925742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:39,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:39,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 07:40:39,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808516108] [2023-11-23 07:40:39,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:39,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 07:40:39,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:39,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 07:40:39,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:40:39,323 INFO L87 Difference]: Start difference. First operand 387 states and 568 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 12 states have internal predecessors, (115), 7 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2023-11-23 07:40:42,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:42,673 INFO L93 Difference]: Finished difference Result 796 states and 1200 transitions. [2023-11-23 07:40:42,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 07:40:42,673 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 12 states have internal predecessors, (115), 7 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) Word has length 323 [2023-11-23 07:40:42,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:42,676 INFO L225 Difference]: With dead ends: 796 [2023-11-23 07:40:42,676 INFO L226 Difference]: Without dead ends: 440 [2023-11-23 07:40:42,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-11-23 07:40:42,678 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 241 mSDsluCounter, 1345 mSDsCounter, 0 mSdLazyCounter, 3099 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 3243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 3099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:42,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 1614 Invalid, 3243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 3099 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-23 07:40:42,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2023-11-23 07:40:42,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 412. [2023-11-23 07:40:42,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 266 states have (on average 1.2481203007518797) internal successors, (332), 265 states have internal predecessors, (332), 115 states have call successors, (115), 24 states have call predecessors, (115), 29 states have return successors, (169), 122 states have call predecessors, (169), 113 states have call successors, (169) [2023-11-23 07:40:42,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 616 transitions. [2023-11-23 07:40:42,695 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 616 transitions. Word has length 323 [2023-11-23 07:40:42,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:42,695 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 616 transitions. [2023-11-23 07:40:42,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 12 states have internal predecessors, (115), 7 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2023-11-23 07:40:42,695 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 616 transitions. [2023-11-23 07:40:42,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-11-23 07:40:42,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:42,697 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:42,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:42,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:42,916 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:42,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:42,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1542001619, now seen corresponding path program 1 times [2023-11-23 07:40:42,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:42,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017035054] [2023-11-23 07:40:42,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:42,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:42,983 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:42,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [551004361] [2023-11-23 07:40:42,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:42,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:42,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:42,985 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:42,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-23 07:40:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:44,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 4994 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 07:40:44,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:44,310 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 735 trivial. 0 not checked. [2023-11-23 07:40:44,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:44,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:44,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017035054] [2023-11-23 07:40:44,311 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:44,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551004361] [2023-11-23 07:40:44,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551004361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:44,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:44,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:40:44,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105179777] [2023-11-23 07:40:44,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:44,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:40:44,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:44,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:40:44,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:40:44,313 INFO L87 Difference]: Start difference. First operand 412 states and 616 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-23 07:40:44,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:44,450 INFO L93 Difference]: Finished difference Result 821 states and 1242 transitions. [2023-11-23 07:40:44,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:40:44,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 323 [2023-11-23 07:40:44,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:44,453 INFO L225 Difference]: With dead ends: 821 [2023-11-23 07:40:44,453 INFO L226 Difference]: Without dead ends: 440 [2023-11-23 07:40:44,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:40:44,455 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 6 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:44,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1688 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:40:44,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2023-11-23 07:40:44,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 405. [2023-11-23 07:40:44,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 260 states have (on average 1.2461538461538462) internal successors, (324), 260 states have internal predecessors, (324), 115 states have call successors, (115), 24 states have call predecessors, (115), 28 states have return successors, (158), 120 states have call predecessors, (158), 113 states have call successors, (158) [2023-11-23 07:40:44,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 597 transitions. [2023-11-23 07:40:44,476 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 597 transitions. Word has length 323 [2023-11-23 07:40:44,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:44,477 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 597 transitions. [2023-11-23 07:40:44,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-23 07:40:44,477 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 597 transitions. [2023-11-23 07:40:44,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-11-23 07:40:44,479 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:44,479 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:44,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:44,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-23 07:40:44,701 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:44,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:44,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1262890929, now seen corresponding path program 1 times [2023-11-23 07:40:44,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:44,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356136452] [2023-11-23 07:40:44,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:44,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:44,768 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:44,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [136825907] [2023-11-23 07:40:44,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:44,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:44,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:44,769 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:44,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-23 07:40:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:46,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 5003 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-23 07:40:46,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:47,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:40:47,196 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2023-11-23 07:40:47,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:47,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:47,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356136452] [2023-11-23 07:40:47,197 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:47,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136825907] [2023-11-23 07:40:47,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136825907] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:47,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:47,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 07:40:47,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094471384] [2023-11-23 07:40:47,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:47,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 07:40:47,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:47,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 07:40:47,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:40:47,199 INFO L87 Difference]: Start difference. First operand 405 states and 597 transitions. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) [2023-11-23 07:40:49,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:40:51,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:51,388 INFO L93 Difference]: Finished difference Result 811 states and 1207 transitions. [2023-11-23 07:40:51,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 07:40:51,389 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) Word has length 323 [2023-11-23 07:40:51,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:51,391 INFO L225 Difference]: With dead ends: 811 [2023-11-23 07:40:51,391 INFO L226 Difference]: Without dead ends: 421 [2023-11-23 07:40:51,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:40:51,394 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 233 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 2391 mSolverCounterSat, 143 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 2535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 2391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:51,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 1310 Invalid, 2535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 2391 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-11-23 07:40:51,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2023-11-23 07:40:51,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 401. [2023-11-23 07:40:51,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 256 states have (on average 1.234375) internal successors, (316), 257 states have internal predecessors, (316), 115 states have call successors, (115), 24 states have call predecessors, (115), 28 states have return successors, (156), 119 states have call predecessors, (156), 113 states have call successors, (156) [2023-11-23 07:40:51,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 587 transitions. [2023-11-23 07:40:51,410 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 587 transitions. Word has length 323 [2023-11-23 07:40:51,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:51,410 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 587 transitions. [2023-11-23 07:40:51,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) [2023-11-23 07:40:51,410 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 587 transitions. [2023-11-23 07:40:51,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-11-23 07:40:51,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:51,412 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:51,448 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-23 07:40:51,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-23 07:40:51,637 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:51,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:51,637 INFO L85 PathProgramCache]: Analyzing trace with hash 638245961, now seen corresponding path program 1 times [2023-11-23 07:40:51,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:51,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040954446] [2023-11-23 07:40:51,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:51,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:51,700 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:51,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1296555834] [2023-11-23 07:40:51,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:51,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:51,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:51,702 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:51,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-23 07:40:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:54,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 4991 conjuncts, 100 conjunts are in the unsatisfiable core [2023-11-23 07:40:54,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:54,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 07:40:54,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-23 07:40:54,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-23 07:40:55,090 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-23 07:40:55,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2023-11-23 07:40:55,200 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 351 proven. 6 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2023-11-23 07:40:55,201 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:40:55,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2023-11-23 07:40:55,762 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2023-11-23 07:40:55,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:55,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040954446] [2023-11-23 07:40:55,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:55,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296555834] [2023-11-23 07:40:55,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296555834] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 07:40:55,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:40:55,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [15] total 22 [2023-11-23 07:40:55,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790018939] [2023-11-23 07:40:55,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:55,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:40:55,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:55,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:40:55,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2023-11-23 07:40:55,765 INFO L87 Difference]: Start difference. First operand 401 states and 587 transitions. Second operand has 9 states, 7 states have (on average 9.0) internal successors, (63), 6 states have internal predecessors, (63), 5 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-23 07:40:56,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:56,246 INFO L93 Difference]: Finished difference Result 752 states and 1115 transitions. [2023-11-23 07:40:56,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:40:56,246 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 9.0) internal successors, (63), 6 states have internal predecessors, (63), 5 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 323 [2023-11-23 07:40:56,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:56,249 INFO L225 Difference]: With dead ends: 752 [2023-11-23 07:40:56,249 INFO L226 Difference]: Without dead ends: 437 [2023-11-23 07:40:56,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 616 SyntacticMatches, 8 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2023-11-23 07:40:56,250 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 57 mSDsluCounter, 3088 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 3549 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:56,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 3549 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 07:40:56,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2023-11-23 07:40:56,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 402. [2023-11-23 07:40:56,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 257 states have (on average 1.2334630350194553) internal successors, (317), 258 states have internal predecessors, (317), 115 states have call successors, (115), 24 states have call predecessors, (115), 28 states have return successors, (156), 119 states have call predecessors, (156), 113 states have call successors, (156) [2023-11-23 07:40:56,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 588 transitions. [2023-11-23 07:40:56,287 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 588 transitions. Word has length 323 [2023-11-23 07:40:56,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:56,288 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 588 transitions. [2023-11-23 07:40:56,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 9.0) internal successors, (63), 6 states have internal predecessors, (63), 5 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-23 07:40:56,288 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 588 transitions. [2023-11-23 07:40:56,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2023-11-23 07:40:56,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:56,290 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 07:40:56,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:56,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-23 07:40:56,508 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:56,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:56,509 INFO L85 PathProgramCache]: Analyzing trace with hash -106030759, now seen corresponding path program 1 times [2023-11-23 07:40:56,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:56,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340701092] [2023-11-23 07:40:56,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:56,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:56,587 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:56,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1118961241] [2023-11-23 07:40:56,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:56,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:56,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:56,588 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:56,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-23 07:40:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:57,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 4950 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 07:40:57,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:57,693 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2023-11-23 07:40:57,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:57,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:57,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340701092] [2023-11-23 07:40:57,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:57,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118961241] [2023-11-23 07:40:57,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118961241] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:57,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:57,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 07:40:57,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155837032] [2023-11-23 07:40:57,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:57,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 07:40:57,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:57,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 07:40:57,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:40:57,696 INFO L87 Difference]: Start difference. First operand 402 states and 588 transitions. Second operand has 11 states, 10 states have (on average 8.8) internal successors, (88), 8 states have internal predecessors, (88), 6 states have call successors, (34), 5 states have call predecessors, (34), 3 states have return successors, (29), 5 states have call predecessors, (29), 6 states have call successors, (29) [2023-11-23 07:40:58,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:58,410 INFO L93 Difference]: Finished difference Result 750 states and 1121 transitions. [2023-11-23 07:40:58,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:40:58,411 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.8) internal successors, (88), 8 states have internal predecessors, (88), 6 states have call successors, (34), 5 states have call predecessors, (34), 3 states have return successors, (29), 5 states have call predecessors, (29), 6 states have call successors, (29) Word has length 322 [2023-11-23 07:40:58,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:58,414 INFO L225 Difference]: With dead ends: 750 [2023-11-23 07:40:58,414 INFO L226 Difference]: Without dead ends: 419 [2023-11-23 07:40:58,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:40:58,416 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 129 mSDsluCounter, 3291 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 3677 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:58,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 3677 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 07:40:58,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2023-11-23 07:40:58,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2023-11-23 07:40:58,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 264 states have (on average 1.231060606060606) internal successors, (325), 265 states have internal predecessors, (325), 124 states have call successors, (124), 25 states have call predecessors, (124), 29 states have return successors, (174), 128 states have call predecessors, (174), 122 states have call successors, (174) [2023-11-23 07:40:58,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 623 transitions. [2023-11-23 07:40:58,445 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 623 transitions. Word has length 322 [2023-11-23 07:40:58,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:58,447 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 623 transitions. [2023-11-23 07:40:58,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.8) internal successors, (88), 8 states have internal predecessors, (88), 6 states have call successors, (34), 5 states have call predecessors, (34), 3 states have return successors, (29), 5 states have call predecessors, (29), 6 states have call successors, (29) [2023-11-23 07:40:58,447 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 623 transitions. [2023-11-23 07:40:58,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2023-11-23 07:40:58,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:58,450 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:58,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:58,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-23 07:40:58,670 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:58,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:58,671 INFO L85 PathProgramCache]: Analyzing trace with hash -40760799, now seen corresponding path program 1 times [2023-11-23 07:40:58,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:58,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320940470] [2023-11-23 07:40:58,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:58,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:58,792 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:58,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1378131428] [2023-11-23 07:40:58,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:58,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:58,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:58,794 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:58,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-23 07:40:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:59,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 4678 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 07:40:59,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:59,852 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2023-11-23 07:40:59,852 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:59,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:59,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320940470] [2023-11-23 07:40:59,853 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:59,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378131428] [2023-11-23 07:40:59,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378131428] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:59,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:59,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 07:40:59,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081039893] [2023-11-23 07:40:59,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:59,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:40:59,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:59,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:40:59,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:40:59,858 INFO L87 Difference]: Start difference. First operand 419 states and 623 transitions. Second operand has 10 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 6 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 6 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-23 07:41:00,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:41:00,613 INFO L93 Difference]: Finished difference Result 733 states and 1098 transitions. [2023-11-23 07:41:00,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:41:00,614 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 6 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 6 states have call predecessors, (24), 5 states have call successors, (24) Word has length 302 [2023-11-23 07:41:00,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:41:00,616 INFO L225 Difference]: With dead ends: 733 [2023-11-23 07:41:00,616 INFO L226 Difference]: Without dead ends: 430 [2023-11-23 07:41:00,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:41:00,618 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 109 mSDsluCounter, 2940 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 3327 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:41:00,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 3327 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 07:41:00,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2023-11-23 07:41:00,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2023-11-23 07:41:00,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 269 states have (on average 1.2304832713754648) internal successors, (331), 270 states have internal predecessors, (331), 129 states have call successors, (129), 26 states have call predecessors, (129), 30 states have return successors, (185), 133 states have call predecessors, (185), 127 states have call successors, (185) [2023-11-23 07:41:00,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 645 transitions. [2023-11-23 07:41:00,637 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 645 transitions. Word has length 302 [2023-11-23 07:41:00,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:41:00,638 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 645 transitions. [2023-11-23 07:41:00,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 6 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 6 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-23 07:41:00,638 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 645 transitions. [2023-11-23 07:41:00,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-11-23 07:41:00,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:41:00,640 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:41:00,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-23 07:41:00,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-23 07:41:00,856 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:41:00,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:41:00,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1897841625, now seen corresponding path program 1 times [2023-11-23 07:41:00,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:41:00,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065382530] [2023-11-23 07:41:00,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:00,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:41:00,919 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:41:00,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1781191952] [2023-11-23 07:41:00,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:00,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:41:00,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:41:00,934 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:41:00,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-23 07:41:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:41:04,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 4865 conjuncts, 81 conjunts are in the unsatisfiable core [2023-11-23 07:41:04,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:41:04,591 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2023-11-23 07:41:04,592 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:41:04,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:41:04,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065382530] [2023-11-23 07:41:04,592 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:41:04,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781191952] [2023-11-23 07:41:04,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781191952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:41:04,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:41:04,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 07:41:04,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523656142] [2023-11-23 07:41:04,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:41:04,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:41:04,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:41:04,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:41:04,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:41:04,593 INFO L87 Difference]: Start difference. First operand 430 states and 645 transitions. Second operand has 9 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 5 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-23 07:41:06,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:41:06,123 INFO L93 Difference]: Finished difference Result 742 states and 1116 transitions. [2023-11-23 07:41:06,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:41:06,123 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 5 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 315 [2023-11-23 07:41:06,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:41:06,125 INFO L225 Difference]: With dead ends: 742 [2023-11-23 07:41:06,125 INFO L226 Difference]: Without dead ends: 430 [2023-11-23 07:41:06,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-23 07:41:06,127 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 195 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:41:06,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 1438 Invalid, 1866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-23 07:41:06,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2023-11-23 07:41:06,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2023-11-23 07:41:06,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 269 states have (on average 1.2267657992565055) internal successors, (330), 270 states have internal predecessors, (330), 129 states have call successors, (129), 26 states have call predecessors, (129), 30 states have return successors, (185), 133 states have call predecessors, (185), 127 states have call successors, (185) [2023-11-23 07:41:06,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 644 transitions. [2023-11-23 07:41:06,148 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 644 transitions. Word has length 315 [2023-11-23 07:41:06,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:41:06,149 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 644 transitions. [2023-11-23 07:41:06,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 5 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-23 07:41:06,149 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 644 transitions. [2023-11-23 07:41:06,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-11-23 07:41:06,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:41:06,152 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:41:06,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-23 07:41:06,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:41:06,380 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:41:06,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:41:06,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1453940951, now seen corresponding path program 1 times [2023-11-23 07:41:06,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:41:06,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74398659] [2023-11-23 07:41:06,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:06,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:41:06,445 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:41:06,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1460836979] [2023-11-23 07:41:06,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:06,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:41:06,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:41:06,446 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:41:06,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-23 07:41:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:41:07,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 4870 conjuncts, 152 conjunts are in the unsatisfiable core [2023-11-23 07:41:07,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:41:07,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:41:07,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:41:08,456 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2023-11-23 07:41:08,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:41:08,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:41:08,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74398659] [2023-11-23 07:41:08,456 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:41:08,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460836979] [2023-11-23 07:41:08,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460836979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:41:08,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:41:08,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-11-23 07:41:08,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865161918] [2023-11-23 07:41:08,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:41:08,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-23 07:41:08,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:41:08,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-23 07:41:08,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2023-11-23 07:41:08,458 INFO L87 Difference]: Start difference. First operand 430 states and 644 transitions. Second operand has 18 states, 17 states have (on average 5.411764705882353) internal successors, (92), 16 states have internal predecessors, (92), 10 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (27), 9 states have call predecessors, (27), 10 states have call successors, (27) [2023-11-23 07:41:10,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:41:10,921 INFO L93 Difference]: Finished difference Result 742 states and 1125 transitions. [2023-11-23 07:41:10,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-23 07:41:10,922 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.411764705882353) internal successors, (92), 16 states have internal predecessors, (92), 10 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (27), 9 states have call predecessors, (27), 10 states have call successors, (27) Word has length 315 [2023-11-23 07:41:10,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:41:10,924 INFO L225 Difference]: With dead ends: 742 [2023-11-23 07:41:10,924 INFO L226 Difference]: Without dead ends: 433 [2023-11-23 07:41:10,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 297 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=860, Unknown=0, NotChecked=0, Total=992 [2023-11-23 07:41:10,926 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 298 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 3196 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 2850 SdHoareTripleChecker+Invalid, 3410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 3196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:41:10,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 2850 Invalid, 3410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 3196 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 07:41:10,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2023-11-23 07:41:10,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2023-11-23 07:41:10,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 271 states have (on average 1.2250922509225093) internal successors, (332), 273 states have internal predecessors, (332), 129 states have call successors, (129), 26 states have call predecessors, (129), 31 states have return successors, (199), 133 states have call predecessors, (199), 127 states have call successors, (199) [2023-11-23 07:41:10,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 660 transitions. [2023-11-23 07:41:10,948 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 660 transitions. Word has length 315 [2023-11-23 07:41:10,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:41:10,949 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 660 transitions. [2023-11-23 07:41:10,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.411764705882353) internal successors, (92), 16 states have internal predecessors, (92), 10 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (27), 9 states have call predecessors, (27), 10 states have call successors, (27) [2023-11-23 07:41:10,949 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 660 transitions. [2023-11-23 07:41:10,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2023-11-23 07:41:10,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:41:10,951 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:41:10,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-23 07:41:11,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-23 07:41:11,173 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:41:11,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:41:11,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1708979677, now seen corresponding path program 1 times [2023-11-23 07:41:11,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:41:11,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345070585] [2023-11-23 07:41:11,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:11,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:41:11,233 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:41:11,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [128264822] [2023-11-23 07:41:11,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:11,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:41:11,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:41:11,235 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:41:11,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-23 07:41:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:41:14,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 4880 conjuncts, 219 conjunts are in the unsatisfiable core [2023-11-23 07:41:14,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:41:14,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:41:14,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-23 07:41:14,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 55 [2023-11-23 07:41:15,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-23 07:41:15,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 55 [2023-11-23 07:41:18,240 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 230 proven. 30 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2023-11-23 07:41:18,240 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:41:23,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2023-11-23 07:41:24,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:41:24,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345070585] [2023-11-23 07:41:24,213 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:41:24,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128264822] [2023-11-23 07:41:24,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128264822] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:41:24,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:41:24,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2023-11-23 07:41:24,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362587760] [2023-11-23 07:41:24,214 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 07:41:24,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-11-23 07:41:24,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:41:24,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-11-23 07:41:24,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=2288, Unknown=1, NotChecked=0, Total=2450 [2023-11-23 07:41:24,216 INFO L87 Difference]: Start difference. First operand 433 states and 660 transitions. Second operand has 37 states, 32 states have (on average 3.21875) internal successors, (103), 28 states have internal predecessors, (103), 12 states have call successors, (29), 5 states have call predecessors, (29), 9 states have return successors, (29), 15 states have call predecessors, (29), 11 states have call successors, (29) [2023-11-23 07:41:34,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-23 07:41:35,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:41:35,982 INFO L93 Difference]: Finished difference Result 476 states and 788 transitions. [2023-11-23 07:41:35,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-23 07:41:35,982 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 32 states have (on average 3.21875) internal successors, (103), 28 states have internal predecessors, (103), 12 states have call successors, (29), 5 states have call predecessors, (29), 9 states have return successors, (29), 15 states have call predecessors, (29), 11 states have call successors, (29) Word has length 319 [2023-11-23 07:41:35,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:41:36,005 INFO L225 Difference]: With dead ends: 476 [2023-11-23 07:41:36,005 INFO L226 Difference]: Without dead ends: 474 [2023-11-23 07:41:36,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1125 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=370, Invalid=5031, Unknown=1, NotChecked=0, Total=5402 [2023-11-23 07:41:36,008 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 315 mSDsluCounter, 4598 mSDsCounter, 0 mSdLazyCounter, 7859 mSolverCounterSat, 229 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 4848 SdHoareTripleChecker+Invalid, 8089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 7859 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:41:36,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 4848 Invalid, 8089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 7859 Invalid, 1 Unknown, 0 Unchecked, 9.4s Time] [2023-11-23 07:41:36,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2023-11-23 07:41:36,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 467. [2023-11-23 07:41:36,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 296 states have (on average 1.2195945945945945) internal successors, (361), 302 states have internal predecessors, (361), 132 states have call successors, (132), 27 states have call predecessors, (132), 37 states have return successors, (272), 137 states have call predecessors, (272), 130 states have call successors, (272) [2023-11-23 07:41:36,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 765 transitions. [2023-11-23 07:41:36,072 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 765 transitions. Word has length 319 [2023-11-23 07:41:36,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:41:36,072 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 765 transitions. [2023-11-23 07:41:36,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 32 states have (on average 3.21875) internal successors, (103), 28 states have internal predecessors, (103), 12 states have call successors, (29), 5 states have call predecessors, (29), 9 states have return successors, (29), 15 states have call predecessors, (29), 11 states have call successors, (29) [2023-11-23 07:41:36,072 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 765 transitions. [2023-11-23 07:41:36,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2023-11-23 07:41:36,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:41:36,075 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:41:36,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-11-23 07:41:36,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:41:36,288 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:41:36,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:41:36,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1392611412, now seen corresponding path program 1 times [2023-11-23 07:41:36,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:41:36,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627749530] [2023-11-23 07:41:36,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:36,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:41:36,351 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:41:36,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1743529501] [2023-11-23 07:41:36,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:36,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:41:36,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:41:36,358 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:41:36,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-23 07:41:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:41:37,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 4875 conjuncts, 140 conjunts are in the unsatisfiable core [2023-11-23 07:41:37,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:41:37,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:41:37,987 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 274 proven. 28 refuted. 0 times theorem prover too weak. 527 trivial. 0 not checked. [2023-11-23 07:41:37,987 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:41:41,446 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 96 proven. 13 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2023-11-23 07:41:41,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:41:41,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627749530] [2023-11-23 07:41:41,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:41:41,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743529501] [2023-11-23 07:41:41,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743529501] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:41:41,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:41:41,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 17] total 40 [2023-11-23 07:41:41,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410645049] [2023-11-23 07:41:41,447 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 07:41:41,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-11-23 07:41:41,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:41:41,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-23 07:41:41,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1438, Unknown=1, NotChecked=0, Total=1560 [2023-11-23 07:41:41,449 INFO L87 Difference]: Start difference. First operand 467 states and 765 transitions. Second operand has 40 states, 31 states have (on average 5.612903225806452) internal successors, (174), 30 states have internal predecessors, (174), 14 states have call successors, (61), 7 states have call predecessors, (61), 11 states have return successors, (58), 16 states have call predecessors, (58), 13 states have call successors, (58) [2023-11-23 07:41:51,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:41:51,816 INFO L93 Difference]: Finished difference Result 1362 states and 2437 transitions. [2023-11-23 07:41:51,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-23 07:41:51,817 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 31 states have (on average 5.612903225806452) internal successors, (174), 30 states have internal predecessors, (174), 14 states have call successors, (61), 7 states have call predecessors, (61), 11 states have return successors, (58), 16 states have call predecessors, (58), 13 states have call successors, (58) Word has length 339 [2023-11-23 07:41:51,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:41:51,825 INFO L225 Difference]: With dead ends: 1362 [2023-11-23 07:41:51,825 INFO L226 Difference]: Without dead ends: 964 [2023-11-23 07:41:51,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 646 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1345 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=508, Invalid=5811, Unknown=1, NotChecked=0, Total=6320 [2023-11-23 07:41:51,829 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 645 mSDsluCounter, 9440 mSDsCounter, 0 mSdLazyCounter, 13578 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 9867 SdHoareTripleChecker+Invalid, 14140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 13578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:41:51,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 9867 Invalid, 14140 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [562 Valid, 13578 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2023-11-23 07:41:51,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2023-11-23 07:41:51,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 852. [2023-11-23 07:41:51,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 542 states have (on average 1.2269372693726937) internal successors, (665), 544 states have internal predecessors, (665), 251 states have call successors, (251), 43 states have call predecessors, (251), 57 states have return successors, (586), 264 states have call predecessors, (586), 249 states have call successors, (586) [2023-11-23 07:41:51,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1502 transitions. [2023-11-23 07:41:51,882 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1502 transitions. Word has length 339 [2023-11-23 07:41:51,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:41:51,883 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 1502 transitions. [2023-11-23 07:41:51,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 31 states have (on average 5.612903225806452) internal successors, (174), 30 states have internal predecessors, (174), 14 states have call successors, (61), 7 states have call predecessors, (61), 11 states have return successors, (58), 16 states have call predecessors, (58), 13 states have call successors, (58) [2023-11-23 07:41:51,883 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1502 transitions. [2023-11-23 07:41:51,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2023-11-23 07:41:51,886 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:41:51,887 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:41:51,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-11-23 07:41:52,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:41:52,099 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:41:52,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:41:52,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1905929249, now seen corresponding path program 2 times [2023-11-23 07:41:52,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:41:52,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786056808] [2023-11-23 07:41:52,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:52,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:41:52,197 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:41:52,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1022629198] [2023-11-23 07:41:52,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:41:52,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:41:52,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:41:52,198 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:41:52,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-23 07:41:53,108 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 07:41:53,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:41:53,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 2051 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 07:41:53,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:41:53,150 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2023-11-23 07:41:53,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:41:53,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:41:53,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786056808] [2023-11-23 07:41:53,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:41:53,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022629198] [2023-11-23 07:41:53,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022629198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:41:53,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:41:53,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:41:53,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448288430] [2023-11-23 07:41:53,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:41:53,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:41:53,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:41:53,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:41:53,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:41:53,153 INFO L87 Difference]: Start difference. First operand 852 states and 1502 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-23 07:41:53,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:41:53,699 INFO L93 Difference]: Finished difference Result 1665 states and 3054 transitions. [2023-11-23 07:41:53,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:41:53,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) Word has length 319 [2023-11-23 07:41:53,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:41:53,706 INFO L225 Difference]: With dead ends: 1665 [2023-11-23 07:41:53,706 INFO L226 Difference]: Without dead ends: 844 [2023-11-23 07:41:53,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:41:53,714 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 16 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1596 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:41:53,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 1596 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:41:53,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2023-11-23 07:41:53,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 844. [2023-11-23 07:41:53,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 536 states have (on average 1.2257462686567164) internal successors, (657), 536 states have internal predecessors, (657), 251 states have call successors, (251), 43 states have call predecessors, (251), 55 states have return successors, (526), 264 states have call predecessors, (526), 249 states have call successors, (526) [2023-11-23 07:41:53,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1434 transitions. [2023-11-23 07:41:53,852 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1434 transitions. Word has length 319 [2023-11-23 07:41:53,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:41:53,853 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1434 transitions. [2023-11-23 07:41:53,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-23 07:41:53,854 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1434 transitions. [2023-11-23 07:41:53,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2023-11-23 07:41:53,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:41:53,859 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:41:53,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2023-11-23 07:41:54,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-23 07:41:54,077 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:41:54,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:41:54,077 INFO L85 PathProgramCache]: Analyzing trace with hash 2065524039, now seen corresponding path program 2 times [2023-11-23 07:41:54,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:41:54,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909779022] [2023-11-23 07:41:54,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:54,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:41:54,139 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:41:54,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [438327304] [2023-11-23 07:41:54,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:41:54,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:41:54,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:41:54,157 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:41:54,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-23 07:41:55,248 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:41:55,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:41:55,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 4876 conjuncts, 44 conjunts are in the unsatisfiable core [2023-11-23 07:41:55,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:41:55,368 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 419 proven. 9 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2023-11-23 07:41:55,368 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:41:56,180 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 95 proven. 38 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2023-11-23 07:41:56,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:41:56,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909779022] [2023-11-23 07:41:56,180 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:41:56,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438327304] [2023-11-23 07:41:56,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438327304] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:41:56,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:41:56,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 26 [2023-11-23 07:41:56,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65055236] [2023-11-23 07:41:56,181 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 07:41:56,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-23 07:41:56,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:41:56,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-23 07:41:56,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2023-11-23 07:41:56,183 INFO L87 Difference]: Start difference. First operand 844 states and 1434 transitions. Second operand has 26 states, 21 states have (on average 6.761904761904762) internal successors, (142), 17 states have internal predecessors, (142), 7 states have call successors, (40), 3 states have call predecessors, (40), 9 states have return successors, (42), 12 states have call predecessors, (42), 6 states have call successors, (42) [2023-11-23 07:41:57,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:41:57,346 INFO L93 Difference]: Finished difference Result 1620 states and 2729 transitions. [2023-11-23 07:41:57,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-23 07:41:57,347 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 21 states have (on average 6.761904761904762) internal successors, (142), 17 states have internal predecessors, (142), 7 states have call successors, (40), 3 states have call predecessors, (40), 9 states have return successors, (42), 12 states have call predecessors, (42), 6 states have call successors, (42) Word has length 335 [2023-11-23 07:41:57,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:41:57,353 INFO L225 Difference]: With dead ends: 1620 [2023-11-23 07:41:57,353 INFO L226 Difference]: Without dead ends: 938 [2023-11-23 07:41:57,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 672 GetRequests, 640 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870 [2023-11-23 07:41:57,357 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 36 mSDsluCounter, 6851 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 7259 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:41:57,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 7259 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 07:41:57,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2023-11-23 07:41:57,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 918. [2023-11-23 07:41:57,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 605 states have (on average 1.2231404958677685) internal successors, (740), 602 states have internal predecessors, (740), 253 states have call successors, (253), 43 states have call predecessors, (253), 58 states have return successors, (562), 272 states have call predecessors, (562), 251 states have call successors, (562) [2023-11-23 07:41:57,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1555 transitions. [2023-11-23 07:41:57,407 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1555 transitions. Word has length 335 [2023-11-23 07:41:57,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:41:57,407 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1555 transitions. [2023-11-23 07:41:57,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 21 states have (on average 6.761904761904762) internal successors, (142), 17 states have internal predecessors, (142), 7 states have call successors, (40), 3 states have call predecessors, (40), 9 states have return successors, (42), 12 states have call predecessors, (42), 6 states have call successors, (42) [2023-11-23 07:41:57,408 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1555 transitions. [2023-11-23 07:41:57,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-11-23 07:41:57,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:41:57,411 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:41:57,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-23 07:41:57,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-23 07:41:57,634 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:41:57,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:41:57,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1524667198, now seen corresponding path program 3 times [2023-11-23 07:41:57,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:41:57,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263731915] [2023-11-23 07:41:57,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:57,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:41:57,702 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:41:57,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [297040921] [2023-11-23 07:41:57,703 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 07:41:57,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:41:57,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:41:57,711 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:41:57,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-23 07:41:59,267 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 07:41:59,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:41:59,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 2357 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-23 07:41:59,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:41:59,431 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 209 proven. 4 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2023-11-23 07:41:59,432 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:41:59,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:41:59,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263731915] [2023-11-23 07:41:59,583 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:41:59,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297040921] [2023-11-23 07:41:59,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297040921] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:41:59,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:41:59,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-23 07:41:59,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46206448] [2023-11-23 07:41:59,584 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 07:41:59,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 07:41:59,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:41:59,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 07:41:59,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:41:59,586 INFO L87 Difference]: Start difference. First operand 918 states and 1555 transitions. Second operand has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 6 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) [2023-11-23 07:42:03,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:42:03,255 INFO L93 Difference]: Finished difference Result 2625 states and 4744 transitions. [2023-11-23 07:42:03,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 07:42:03,256 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 6 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) Word has length 323 [2023-11-23 07:42:03,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:42:03,276 INFO L225 Difference]: With dead ends: 2625 [2023-11-23 07:42:03,276 INFO L226 Difference]: Without dead ends: 1792 [2023-11-23 07:42:03,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 331 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2023-11-23 07:42:03,285 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 579 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 577 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 2834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 577 IncrementalHoareTripleChecker+Valid, 2234 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:42:03,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 1344 Invalid, 2834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [577 Valid, 2234 Invalid, 23 Unknown, 0 Unchecked, 3.3s Time] [2023-11-23 07:42:03,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1792 states. [2023-11-23 07:42:03,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1792 to 1781. [2023-11-23 07:42:03,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1781 states, 1164 states have (on average 1.2285223367697595) internal successors, (1430), 1158 states have internal predecessors, (1430), 501 states have call successors, (501), 82 states have call predecessors, (501), 114 states have return successors, (1269), 540 states have call predecessors, (1269), 498 states have call successors, (1269) [2023-11-23 07:42:03,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 3200 transitions. [2023-11-23 07:42:03,414 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 3200 transitions. Word has length 323 [2023-11-23 07:42:03,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:42:03,415 INFO L495 AbstractCegarLoop]: Abstraction has 1781 states and 3200 transitions. [2023-11-23 07:42:03,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 6 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) [2023-11-23 07:42:03,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 3200 transitions. [2023-11-23 07:42:03,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-11-23 07:42:03,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:42:03,422 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 07:42:03,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2023-11-23 07:42:03,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-23 07:42:03,643 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:42:03,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:42:03,644 INFO L85 PathProgramCache]: Analyzing trace with hash 567007591, now seen corresponding path program 4 times [2023-11-23 07:42:03,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:42:03,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689985422] [2023-11-23 07:42:03,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:42:03,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:42:03,714 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:42:03,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [210944547] [2023-11-23 07:42:03,714 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 07:42:03,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:42:03,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:42:03,723 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:42:03,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-23 07:42:04,972 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 07:42:04,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:42:04,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 4878 conjuncts, 126 conjunts are in the unsatisfiable core [2023-11-23 07:42:05,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:42:05,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-23 07:42:05,186 WARN L876 $PredicateComparison]: unable to prove that (exists ((ensure_array_list_has_allocated_data_member_~list.offset Int)) (and (<= |c_ensure_array_list_has_allocated_data_member_#in~list.offset| ensure_array_list_has_allocated_data_member_~list.offset) (= (store |c_old(#memory_int#3)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_int#3)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) ensure_array_list_has_allocated_data_member_~list.offset (select (select |c_#memory_int#3| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) ensure_array_list_has_allocated_data_member_~list.offset))) |c_#memory_int#3|))) is different from true [2023-11-23 07:42:05,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:42:05,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-23 07:42:05,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-23 07:42:05,889 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 369 proven. 28 refuted. 0 times theorem prover too weak. 394 trivial. 2 not checked. [2023-11-23 07:42:05,890 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:42:08,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:42:08,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689985422] [2023-11-23 07:42:08,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:42:08,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210944547] [2023-11-23 07:42:08,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210944547] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:42:08,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:42:08,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2023-11-23 07:42:08,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515149830] [2023-11-23 07:42:08,101 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 07:42:08,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-23 07:42:08,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:42:08,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-23 07:42:08,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=518, Unknown=2, NotChecked=46, Total=650 [2023-11-23 07:42:08,102 INFO L87 Difference]: Start difference. First operand 1781 states and 3200 transitions. Second operand has 23 states, 21 states have (on average 5.190476190476191) internal successors, (109), 20 states have internal predecessors, (109), 12 states have call successors, (35), 7 states have call predecessors, (35), 7 states have return successors, (32), 10 states have call predecessors, (32), 12 states have call successors, (32) [2023-11-23 07:42:16,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:42:20,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:42:24,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:42:34,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:42:41,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:42:52,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:42:53,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:43:20,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:43:37,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:43:40,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] Killed by 15