./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_push_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_push_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 d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 07:37:31,462 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 07:37:31,531 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 07:37:31,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 07:37:31,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 07:37:31,560 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 07:37:31,561 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 07:37:31,561 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 07:37:31,563 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 07:37:31,565 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 07:37:31,565 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 07:37:31,565 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 07:37:31,566 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 07:37:31,566 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 07:37:31,566 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 07:37:31,567 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 07:37:31,567 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 07:37:31,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 07:37:31,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 07:37:31,568 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 07:37:31,568 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 07:37:31,569 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 07:37:31,569 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 07:37:31,569 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 07:37:31,570 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 07:37:31,570 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 07:37:31,570 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 07:37:31,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 07:37:31,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:37:31,571 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 07:37:31,572 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 07:37:31,572 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 07:37:31,573 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 07:37:31,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 07:37:31,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 07:37:31,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 07:37:31,573 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 07:37:31,574 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 07:37:31,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 07:37:31,574 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-23 07:37:31,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 07:37:31,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 07:37:31,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 07:37:31,851 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 07:37:31,851 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 07:37:31,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_push_harness.i [2023-11-23 07:37:33,031 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 07:37:33,456 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 07:37:33,457 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_push_harness.i [2023-11-23 07:37:33,496 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e164e6346/22bb65df83d548cc89c14a16e28e10ff/FLAGc8671bb18 [2023-11-23 07:37:33,510 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e164e6346/22bb65df83d548cc89c14a16e28e10ff [2023-11-23 07:37:33,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 07:37:33,515 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 07:37:33,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 07:37:33,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 07:37:33,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 07:37:33,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:37:33" (1/1) ... [2023-11-23 07:37:33,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3800255d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:37:33, skipping insertion in model container [2023-11-23 07:37:33,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:37:33" (1/1) ... [2023-11-23 07:37:33,621 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 07:37:33,928 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_push_harness.i[4497,4510] [2023-11-23 07:37:33,937 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_push_harness.i[4557,4570] [2023-11-23 07:37:34,655 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:34,655 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:34,656 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:34,656 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:34,657 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:34,667 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:34,667 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:34,668 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:34,669 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:34,670 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:34,671 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:34,671 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:34,672 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,012 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:37:35,013 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:37:35,014 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:37:35,014 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:37:35,015 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:37:35,016 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:37:35,016 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:37:35,017 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:37:35,017 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:37:35,017 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:37:35,202 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,218 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,279 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,279 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,280 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,280 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,280 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,283 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,283 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,284 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,284 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,284 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,285 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,285 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,286 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,288 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,288 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,289 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,289 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,299 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,299 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,312 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,314 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,314 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:37:35,390 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 07:37:35,409 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_push_harness.i[4497,4510] [2023-11-23 07:37:35,411 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_push_harness.i[4557,4570] [2023-11-23 07:37:35,473 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,477 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,477 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,477 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,478 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,487 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,488 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,490 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,490 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,491 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,491 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,492 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,492 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,516 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:37:35,517 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:37:35,517 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:37:35,518 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:37:35,518 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:37:35,519 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:37:35,519 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:37:35,519 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:37:35,520 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:37:35,520 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:37:35,553 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,562 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7771-7782] [2023-11-23 07:37:35,594 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,597 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,597 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,598 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,598 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,598 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,599 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,599 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,599 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,599 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,600 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,616 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,616 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,617 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,618 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,618 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,618 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,620 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,620 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,632 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,632 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,633 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:37:35,641 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:37:35,917 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:37:35,918 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:37:35,918 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:37:35,923 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:37:35,923 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:37:35,924 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:37:35,924 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:37:35,924 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:37:35,925 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:37:35,925 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:37:35,925 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:37:35,925 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:37:35,926 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:37:35,926 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:37:35,926 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:37:35,943 INFO L206 MainTranslator]: Completed translation [2023-11-23 07:37:35,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:37:35 WrapperNode [2023-11-23 07:37:35,945 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 07:37:35,946 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 07:37:35,946 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 07:37:35,946 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 07:37:35,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:37:35" (1/1) ... [2023-11-23 07:37:36,133 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:37:35" (1/1) ... [2023-11-23 07:37:36,292 INFO L138 Inliner]: procedures = 696, calls = 1880, calls flagged for inlining = 60, calls inlined = 19, statements flattened = 1165 [2023-11-23 07:37:36,293 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 07:37:36,294 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 07:37:36,294 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 07:37:36,294 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 07:37:36,315 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:37:35" (1/1) ... [2023-11-23 07:37:36,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:37:35" (1/1) ... [2023-11-23 07:37:36,348 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:37:35" (1/1) ... [2023-11-23 07:37:36,589 INFO L188 MemorySlicer]: Split 373 memory accesses to 8 slices as follows [2, 236, 7, 9, 0, 92, 24, 3]. 63 percent of accesses are in the largest equivalence class. The 249 initializations are split as follows [2, 236, 2, 1, 0, 0, 5, 3]. The 23 writes are split as follows [0, 0, 1, 1, 0, 13, 8, 0]. [2023-11-23 07:37:36,589 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:37:35" (1/1) ... [2023-11-23 07:37:36,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:37:35" (1/1) ... [2023-11-23 07:37:36,647 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:37:35" (1/1) ... [2023-11-23 07:37:36,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:37:35" (1/1) ... [2023-11-23 07:37:36,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:37:35" (1/1) ... [2023-11-23 07:37:36,699 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:37:35" (1/1) ... [2023-11-23 07:37:36,726 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 07:37:36,728 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 07:37:36,728 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 07:37:36,728 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 07:37:36,729 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:37:35" (1/1) ... [2023-11-23 07:37:36,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:37:36,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:37:36,756 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 07:37:36,781 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 07:37:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-23 07:37:36,800 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-23 07:37:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2023-11-23 07:37:36,801 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2023-11-23 07:37:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-23 07:37:36,801 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-23 07:37:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 07:37:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-23 07:37:36,801 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-23 07:37:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-23 07:37:36,802 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-23 07:37:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 07:37:36,802 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 07:37:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-23 07:37:36,802 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-23 07:37:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-23 07:37:36,802 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-23 07:37:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 07:37:36,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 07:37:36,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 07:37:36,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 07:37:36,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 07:37:36,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 07:37:36,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 07:37:36,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 07:37:36,803 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 07:37:36,804 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 07:37:36,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 07:37:36,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 07:37:36,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 07:37:36,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 07:37:36,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 07:37:36,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 07:37:36,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 07:37:36,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 07:37:36,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 07:37:36,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 07:37:36,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 07:37:36,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-23 07:37:36,808 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-23 07:37:36,809 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-23 07:37:36,809 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-23 07:37:36,810 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-23 07:37:36,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 07:37:36,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 07:37:36,810 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 07:37:36,810 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 07:37:36,811 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 07:37:36,816 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 07:37:36,816 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-23 07:37:36,816 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-23 07:37:36,816 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-23 07:37:36,816 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-23 07:37:36,816 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-11-23 07:37:36,817 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-11-23 07:37:36,817 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-23 07:37:36,817 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-23 07:37:36,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-23 07:37:36,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-23 07:37:36,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-23 07:37:36,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-23 07:37:36,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-23 07:37:36,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-11-23 07:37:36,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-11-23 07:37:36,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2023-11-23 07:37:36,818 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-23 07:37:36,818 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-23 07:37:36,818 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-23 07:37:36,818 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-23 07:37:36,818 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-23 07:37:36,819 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-11-23 07:37:36,819 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-11-23 07:37:36,819 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2023-11-23 07:37:36,819 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 07:37:36,819 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 07:37:36,819 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-23 07:37:36,819 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-23 07:37:36,819 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-11-23 07:37:36,820 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-11-23 07:37:36,820 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2023-11-23 07:37:36,820 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2023-11-23 07:37:36,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 07:37:36,820 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-23 07:37:36,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-23 07:37:36,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 07:37:36,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 07:37:36,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 07:37:36,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 07:37:36,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 07:37:36,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 07:37:36,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 07:37:36,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-23 07:37:36,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 07:37:36,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 07:37:36,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 07:37:36,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 07:37:36,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 07:37:36,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 07:37:36,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 07:37:36,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-23 07:37:36,823 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-23 07:37:36,823 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-23 07:37:36,823 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 07:37:36,823 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 07:37:36,823 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 07:37:36,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 07:37:36,823 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-23 07:37:36,823 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-23 07:37:36,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 07:37:36,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 07:37:36,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 07:37:36,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 07:37:36,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 07:37:36,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 07:37:36,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 07:37:36,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 07:37:36,824 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-23 07:37:36,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-23 07:37:36,825 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2023-11-23 07:37:36,825 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2023-11-23 07:37:36,825 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 07:37:36,825 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 07:37:36,825 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 07:37:36,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 07:37:36,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 07:37:36,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 07:37:36,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 07:37:36,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 07:37:36,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 07:37:36,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 07:37:36,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 07:37:36,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 07:37:37,201 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 07:37:37,208 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 07:37:38,398 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 07:37:38,489 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 07:37:38,489 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-23 07:37:38,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:37:38 BoogieIcfgContainer [2023-11-23 07:37:38,490 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 07:37:38,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 07:37:38,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 07:37:38,496 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 07:37:38,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:37:33" (1/3) ... [2023-11-23 07:37:38,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46bc82a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:37:38, skipping insertion in model container [2023-11-23 07:37:38,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:37:35" (2/3) ... [2023-11-23 07:37:38,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46bc82a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:37:38, skipping insertion in model container [2023-11-23 07:37:38,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:37:38" (3/3) ... [2023-11-23 07:37:38,499 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_harness.i [2023-11-23 07:37:38,514 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 07:37:38,515 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 07:37:38,570 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 07:37:38,575 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;@362e3eda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 07:37:38,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 07:37:38,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 507 states, 276 states have (on average 1.2789855072463767) internal successors, (353), 279 states have internal predecessors, (353), 196 states have call successors, (196), 33 states have call predecessors, (196), 33 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2023-11-23 07:37:38,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-23 07:37:38,609 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:37:38,611 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:37:38,611 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:37:38,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:37:38,618 INFO L85 PathProgramCache]: Analyzing trace with hash -39738272, now seen corresponding path program 1 times [2023-11-23 07:37:38,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:37:38,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93910314] [2023-11-23 07:37:38,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:38,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:37:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:37:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:37:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:37:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:37:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:37:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:37:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:37:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:37:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:37:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:37:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:37:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 07:37:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:37:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 07:37:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 07:37:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 07:37:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 07:37:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-23 07:37:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 07:37:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 07:37:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-23 07:37:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 07:37:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 07:37:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-23 07:37:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-23 07:37:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-23 07:37:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-23 07:37:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:39,961 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2023-11-23 07:37:39,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:37:39,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93910314] [2023-11-23 07:37:39,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93910314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:37:39,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:37:39,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:37:39,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324999986] [2023-11-23 07:37:39,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:37:39,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:37:39,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:37:39,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:37:39,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:37:40,002 INFO L87 Difference]: Start difference. First operand has 507 states, 276 states have (on average 1.2789855072463767) internal successors, (353), 279 states have internal predecessors, (353), 196 states have call successors, (196), 33 states have call predecessors, (196), 33 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-23 07:37:44,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:37:44,940 INFO L93 Difference]: Finished difference Result 1159 states and 1964 transitions. [2023-11-23 07:37:44,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:37:44,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 158 [2023-11-23 07:37:44,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:37:44,958 INFO L225 Difference]: With dead ends: 1159 [2023-11-23 07:37:44,958 INFO L226 Difference]: Without dead ends: 658 [2023-11-23 07:37:44,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:37:44,973 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 176 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:37:44,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 1215 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-23 07:37:44,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2023-11-23 07:37:45,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 504. [2023-11-23 07:37:45,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 274 states have (on average 1.2554744525547445) internal successors, (344), 276 states have internal predecessors, (344), 196 states have call successors, (196), 33 states have call predecessors, (196), 32 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2023-11-23 07:37:45,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 734 transitions. [2023-11-23 07:37:45,089 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 734 transitions. Word has length 158 [2023-11-23 07:37:45,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:37:45,089 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 734 transitions. [2023-11-23 07:37:45,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-23 07:37:45,090 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 734 transitions. [2023-11-23 07:37:45,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-23 07:37:45,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:37:45,093 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:37:45,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 07:37:45,093 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:37:45,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:37:45,094 INFO L85 PathProgramCache]: Analyzing trace with hash 2089513194, now seen corresponding path program 1 times [2023-11-23 07:37:45,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:37:45,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72850255] [2023-11-23 07:37:45,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:45,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:37:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:45,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:37:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:45,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:37:45,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:45,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:37:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:45,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:37:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:45,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:37:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:45,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:37:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:45,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:37:45,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:45,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:37:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:45,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:37:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:45,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:37:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:45,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:37:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:45,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 07:37:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:45,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:37:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:45,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 07:37:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:45,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 07:37:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:45,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 07:37:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:45,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 07:37:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:46,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-23 07:37:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:46,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 07:37:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:46,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 07:37:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:46,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-23 07:37:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:46,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 07:37:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:46,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 07:37:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:46,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-23 07:37:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:46,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-23 07:37:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:46,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-23 07:37:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:46,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-23 07:37:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:46,138 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2023-11-23 07:37:46,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:37:46,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72850255] [2023-11-23 07:37:46,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72850255] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:37:46,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040383229] [2023-11-23 07:37:46,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:46,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:37:46,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:37:46,144 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 07:37:46,148 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 07:37:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:46,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 2922 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 07:37:46,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:37:46,970 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2023-11-23 07:37:46,971 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:37:46,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040383229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:37:46,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:37:46,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-23 07:37:46,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384911604] [2023-11-23 07:37:46,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:37:46,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:37:46,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:37:46,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:37:46,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:37:46,976 INFO L87 Difference]: Start difference. First operand 504 states and 734 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-23 07:37:47,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:37:47,514 INFO L93 Difference]: Finished difference Result 981 states and 1440 transitions. [2023-11-23 07:37:47,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:37:47,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 158 [2023-11-23 07:37:47,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:37:47,522 INFO L225 Difference]: With dead ends: 981 [2023-11-23 07:37:47,525 INFO L226 Difference]: Without dead ends: 506 [2023-11-23 07:37:47,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:37:47,532 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 83 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2606 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:37:47,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 2606 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 07:37:47,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2023-11-23 07:37:47,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2023-11-23 07:37:47,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 275 states have (on average 1.2545454545454546) internal successors, (345), 278 states have internal predecessors, (345), 196 states have call successors, (196), 33 states have call predecessors, (196), 33 states have return successors, (204), 194 states have call predecessors, (204), 194 states have call successors, (204) [2023-11-23 07:37:47,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 745 transitions. [2023-11-23 07:37:47,651 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 745 transitions. Word has length 158 [2023-11-23 07:37:47,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:37:47,654 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 745 transitions. [2023-11-23 07:37:47,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-23 07:37:47,668 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 745 transitions. [2023-11-23 07:37:47,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-23 07:37:47,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:37:47,674 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:37:47,712 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 07:37:47,895 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 07:37:47,895 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:37:47,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:37:47,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1897306850, now seen corresponding path program 1 times [2023-11-23 07:37:47,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:37:47,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241323383] [2023-11-23 07:37:47,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:47,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:37:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:37:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:37:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:37:48,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:37:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:37:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:37:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:37:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:37:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:37:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:37:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:37:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 07:37:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 07:37:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:37:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 07:37:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 07:37:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 07:37:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 07:37:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 07:37:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 07:37:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:48,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 07:37:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:49,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-23 07:37:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:49,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-23 07:37:49,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:49,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-23 07:37:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:49,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-23 07:37:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:49,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-23 07:37:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:49,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-23 07:37:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:49,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-23 07:37:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:49,087 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2023-11-23 07:37:49,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:37:49,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241323383] [2023-11-23 07:37:49,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241323383] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:37:49,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356177463] [2023-11-23 07:37:49,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:49,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:37:49,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:37:49,090 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 07:37:49,105 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 07:37:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:49,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 3028 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 07:37:49,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:37:49,832 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2023-11-23 07:37:49,832 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:37:49,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356177463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:37:49,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:37:49,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-11-23 07:37:49,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550248492] [2023-11-23 07:37:49,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:37:49,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:37:49,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:37:49,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:37:49,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:37:49,835 INFO L87 Difference]: Start difference. First operand 506 states and 745 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-23 07:37:50,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:37:50,620 INFO L93 Difference]: Finished difference Result 1004 states and 1520 transitions. [2023-11-23 07:37:50,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:37:50,621 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 166 [2023-11-23 07:37:50,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:37:50,625 INFO L225 Difference]: With dead ends: 1004 [2023-11-23 07:37:50,625 INFO L226 Difference]: Without dead ends: 527 [2023-11-23 07:37:50,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:37:50,629 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 117 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 3769 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:37:50,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 3769 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 07:37:50,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2023-11-23 07:37:50,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 525. [2023-11-23 07:37:50,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 291 states have (on average 1.261168384879725) internal successors, (367), 294 states have internal predecessors, (367), 198 states have call successors, (198), 33 states have call predecessors, (198), 34 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2023-11-23 07:37:50,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 803 transitions. [2023-11-23 07:37:50,673 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 803 transitions. Word has length 166 [2023-11-23 07:37:50,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:37:50,674 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 803 transitions. [2023-11-23 07:37:50,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-23 07:37:50,674 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 803 transitions. [2023-11-23 07:37:50,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-23 07:37:50,676 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:37:50,677 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:50,697 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 07:37:50,892 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 07:37:50,892 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:37:50,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:37:50,893 INFO L85 PathProgramCache]: Analyzing trace with hash 782771450, now seen corresponding path program 1 times [2023-11-23 07:37:50,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:37:50,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521830597] [2023-11-23 07:37:50,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:50,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:37:50,965 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:37:50,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2134022916] [2023-11-23 07:37:50,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:50,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:37:50,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:37:50,967 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 07:37:50,986 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 07:37:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:51,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 3223 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 07:37:51,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:37:51,767 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2023-11-23 07:37:51,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:37:51,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:37:51,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521830597] [2023-11-23 07:37:51,769 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:37:51,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134022916] [2023-11-23 07:37:51,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134022916] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:37:51,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:37:51,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:37:51,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905332084] [2023-11-23 07:37:51,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:37:51,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:37:51,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:37:51,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:37:51,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:37:51,772 INFO L87 Difference]: Start difference. First operand 525 states and 803 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-23 07:37:52,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:37:52,186 INFO L93 Difference]: Finished difference Result 1027 states and 1591 transitions. [2023-11-23 07:37:52,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:37:52,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 179 [2023-11-23 07:37:52,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:37:52,193 INFO L225 Difference]: With dead ends: 1027 [2023-11-23 07:37:52,193 INFO L226 Difference]: Without dead ends: 531 [2023-11-23 07:37:52,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 174 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 07:37:52,199 INFO L413 NwaCegarLoop]: 680 mSDtfsCounter, 102 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 3236 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:37:52,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 3236 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 07:37:52,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2023-11-23 07:37:52,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 525. [2023-11-23 07:37:52,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 291 states have (on average 1.261168384879725) internal successors, (367), 294 states have internal predecessors, (367), 198 states have call successors, (198), 33 states have call predecessors, (198), 34 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2023-11-23 07:37:52,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 803 transitions. [2023-11-23 07:37:52,246 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 803 transitions. Word has length 179 [2023-11-23 07:37:52,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:37:52,246 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 803 transitions. [2023-11-23 07:37:52,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-23 07:37:52,247 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 803 transitions. [2023-11-23 07:37:52,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-11-23 07:37:52,249 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:37:52,250 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:52,274 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 07:37:52,471 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 07:37:52,471 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:37:52,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:37:52,472 INFO L85 PathProgramCache]: Analyzing trace with hash 2145764495, now seen corresponding path program 1 times [2023-11-23 07:37:52,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:37:52,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140271160] [2023-11-23 07:37:52,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:52,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:37:52,553 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:37:52,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [53800048] [2023-11-23 07:37:52,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:52,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:37:52,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:37:52,557 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 07:37:52,559 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 07:37:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:53,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 3346 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 07:37:53,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:37:53,388 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2023-11-23 07:37:53,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:37:53,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:37:53,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140271160] [2023-11-23 07:37:53,389 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:37:53,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53800048] [2023-11-23 07:37:53,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53800048] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:37:53,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:37:53,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:37:53,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099125183] [2023-11-23 07:37:53,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:37:53,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:37:53,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:37:53,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:37:53,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:37:53,392 INFO L87 Difference]: Start difference. First operand 525 states and 803 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-23 07:37:54,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:37:54,474 INFO L93 Difference]: Finished difference Result 1053 states and 1629 transitions. [2023-11-23 07:37:54,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:37:54,474 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 195 [2023-11-23 07:37:54,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:37:54,484 INFO L225 Difference]: With dead ends: 1053 [2023-11-23 07:37:54,484 INFO L226 Difference]: Without dead ends: 557 [2023-11-23 07:37:54,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:37:54,488 INFO L413 NwaCegarLoop]: 644 mSDtfsCounter, 153 mSDsluCounter, 3632 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 4276 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:37:54,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 4276 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 07:37:54,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2023-11-23 07:37:54,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 525. [2023-11-23 07:37:54,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 291 states have (on average 1.261168384879725) internal successors, (367), 294 states have internal predecessors, (367), 198 states have call successors, (198), 33 states have call predecessors, (198), 34 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2023-11-23 07:37:54,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 803 transitions. [2023-11-23 07:37:54,528 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 803 transitions. Word has length 195 [2023-11-23 07:37:54,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:37:54,528 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 803 transitions. [2023-11-23 07:37:54,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-23 07:37:54,529 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 803 transitions. [2023-11-23 07:37:54,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-23 07:37:54,531 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:37:54,531 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:54,555 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 07:37:54,731 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 07:37:54,732 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:37:54,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:37:54,732 INFO L85 PathProgramCache]: Analyzing trace with hash 205700197, now seen corresponding path program 2 times [2023-11-23 07:37:54,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:37:54,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449607206] [2023-11-23 07:37:54,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:54,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:37:54,840 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:37:54,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1668925430] [2023-11-23 07:37:54,841 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:37:54,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:37:54,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:37:54,842 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 07:37:54,857 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 07:37:55,664 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:37:55,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:37:55,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 3541 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 07:37:55,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:37:55,723 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 07:37:55,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-23 07:37:55,834 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-23 07:37:55,835 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:37:55,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:37:55,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449607206] [2023-11-23 07:37:55,835 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:37:55,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668925430] [2023-11-23 07:37:55,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668925430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:37:55,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:37:55,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:37:55,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034820763] [2023-11-23 07:37:55,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:37:55,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:37:55,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:37:55,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:37:55,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:37:55,838 INFO L87 Difference]: Start difference. First operand 525 states and 803 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2023-11-23 07:37:56,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:37:56,329 INFO L93 Difference]: Finished difference Result 1015 states and 1562 transitions. [2023-11-23 07:37:56,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:37:56,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) Word has length 208 [2023-11-23 07:37:56,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:37:56,333 INFO L225 Difference]: With dead ends: 1015 [2023-11-23 07:37:56,334 INFO L226 Difference]: Without dead ends: 527 [2023-11-23 07:37:56,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:37:56,337 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 132 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 3209 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:37:56,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 3209 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 07:37:56,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2023-11-23 07:37:56,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2023-11-23 07:37:56,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 292 states have (on average 1.2602739726027397) internal successors, (368), 296 states have internal predecessors, (368), 198 states have call successors, (198), 33 states have call predecessors, (198), 35 states have return successors, (246), 197 states have call predecessors, (246), 196 states have call successors, (246) [2023-11-23 07:37:56,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 812 transitions. [2023-11-23 07:37:56,371 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 812 transitions. Word has length 208 [2023-11-23 07:37:56,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:37:56,372 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 812 transitions. [2023-11-23 07:37:56,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2023-11-23 07:37:56,372 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 812 transitions. [2023-11-23 07:37:56,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-23 07:37:56,374 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:37:56,374 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:37:56,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 07:37:56,587 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 07:37:56,588 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:37:56,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:37:56,588 INFO L85 PathProgramCache]: Analyzing trace with hash 474552429, now seen corresponding path program 1 times [2023-11-23 07:37:56,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:37:56,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238104203] [2023-11-23 07:37:56,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:56,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:37:56,663 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:37:56,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [290892093] [2023-11-23 07:37:56,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:56,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:37:56,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:37:56,665 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 07:37:56,684 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 07:37:57,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:57,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 3647 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 07:37:57,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:37:57,521 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2023-11-23 07:37:57,521 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:37:57,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:37:57,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238104203] [2023-11-23 07:37:57,521 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:37:57,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290892093] [2023-11-23 07:37:57,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290892093] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:37:57,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:37:57,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:37:57,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793006288] [2023-11-23 07:37:57,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:37:57,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:37:57,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:37:57,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:37:57,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:37:57,524 INFO L87 Difference]: Start difference. First operand 527 states and 812 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 8 states have internal predecessors, (87), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2023-11-23 07:37:59,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:37:59,023 INFO L93 Difference]: Finished difference Result 1033 states and 1600 transitions. [2023-11-23 07:37:59,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:37:59,032 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 8 states have internal predecessors, (87), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 216 [2023-11-23 07:37:59,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:37:59,036 INFO L225 Difference]: With dead ends: 1033 [2023-11-23 07:37:59,036 INFO L226 Difference]: Without dead ends: 543 [2023-11-23 07:37:59,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:37:59,072 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 166 mSDsluCounter, 3686 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 4353 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:37:59,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 4353 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 07:37:59,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-11-23 07:37:59,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 541. [2023-11-23 07:37:59,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 305 states have (on average 1.2655737704918033) internal successors, (386), 308 states have internal predecessors, (386), 199 states have call successors, (199), 33 states have call predecessors, (199), 35 states have return successors, (247), 199 states have call predecessors, (247), 197 states have call successors, (247) [2023-11-23 07:37:59,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 832 transitions. [2023-11-23 07:37:59,225 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 832 transitions. Word has length 216 [2023-11-23 07:37:59,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:37:59,226 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 832 transitions. [2023-11-23 07:37:59,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 8 states have internal predecessors, (87), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2023-11-23 07:37:59,226 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 832 transitions. [2023-11-23 07:37:59,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-11-23 07:37:59,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:37:59,229 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:59,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 07:37:59,452 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 07:37:59,452 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:37:59,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:37:59,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1651979541, now seen corresponding path program 2 times [2023-11-23 07:37:59,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:37:59,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76507053] [2023-11-23 07:37:59,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:59,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:37:59,757 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:37:59,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1547264549] [2023-11-23 07:37:59,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:37:59,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:37:59,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:37:59,778 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 07:37:59,868 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 07:38:00,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:38:00,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:38:00,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 3842 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 07:38:00,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:00,964 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 07:38:00,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-23 07:38:01,118 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2023-11-23 07:38:01,118 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:01,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:01,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76507053] [2023-11-23 07:38:01,119 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:01,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547264549] [2023-11-23 07:38:01,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547264549] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:01,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:01,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 07:38:01,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99999007] [2023-11-23 07:38:01,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:01,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:38:01,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:01,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:38:01,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:38:01,121 INFO L87 Difference]: Start difference. First operand 541 states and 832 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2023-11-23 07:38:01,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:01,768 INFO L93 Difference]: Finished difference Result 1051 states and 1631 transitions. [2023-11-23 07:38:01,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:38:01,769 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 229 [2023-11-23 07:38:01,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:01,773 INFO L225 Difference]: With dead ends: 1051 [2023-11-23 07:38:01,773 INFO L226 Difference]: Without dead ends: 547 [2023-11-23 07:38:01,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:38:01,777 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 151 mSDsluCounter, 3152 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 3830 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:01,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 3830 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:38:01,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2023-11-23 07:38:01,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 541. [2023-11-23 07:38:01,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 305 states have (on average 1.2655737704918033) internal successors, (386), 308 states have internal predecessors, (386), 199 states have call successors, (199), 33 states have call predecessors, (199), 35 states have return successors, (247), 199 states have call predecessors, (247), 197 states have call successors, (247) [2023-11-23 07:38:01,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 832 transitions. [2023-11-23 07:38:01,818 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 832 transitions. Word has length 229 [2023-11-23 07:38:01,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:01,819 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 832 transitions. [2023-11-23 07:38:01,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2023-11-23 07:38:01,819 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 832 transitions. [2023-11-23 07:38:01,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-11-23 07:38:01,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:01,822 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:01,846 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 07:38:02,043 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 07:38:02,044 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:02,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:02,044 INFO L85 PathProgramCache]: Analyzing trace with hash -185221494, now seen corresponding path program 3 times [2023-11-23 07:38:02,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:02,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110920894] [2023-11-23 07:38:02,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:02,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:02,136 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:02,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [502341033] [2023-11-23 07:38:02,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 07:38:02,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:02,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:02,138 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 07:38:02,156 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 07:38:03,164 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 07:38:03,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:38:03,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 1989 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 07:38:03,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:03,280 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2023-11-23 07:38:03,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:03,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:03,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110920894] [2023-11-23 07:38:03,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:03,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502341033] [2023-11-23 07:38:03,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502341033] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:03,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:03,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:38:03,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210825336] [2023-11-23 07:38:03,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:03,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:38:03,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:03,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:38:03,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:38:03,286 INFO L87 Difference]: Start difference. First operand 541 states and 832 transitions. Second operand has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-23 07:38:03,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:03,915 INFO L93 Difference]: Finished difference Result 1028 states and 1594 transitions. [2023-11-23 07:38:03,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:38:03,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 258 [2023-11-23 07:38:03,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:03,920 INFO L225 Difference]: With dead ends: 1028 [2023-11-23 07:38:03,920 INFO L226 Difference]: Without dead ends: 541 [2023-11-23 07:38:03,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 253 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 07:38:03,923 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 2 mSDsluCounter, 2549 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3210 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:03,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3210 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 07:38:03,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-11-23 07:38:03,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2023-11-23 07:38:03,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 305 states have (on average 1.2655737704918033) internal successors, (386), 308 states have internal predecessors, (386), 199 states have call successors, (199), 33 states have call predecessors, (199), 35 states have return successors, (246), 199 states have call predecessors, (246), 197 states have call successors, (246) [2023-11-23 07:38:03,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 831 transitions. [2023-11-23 07:38:03,964 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 831 transitions. Word has length 258 [2023-11-23 07:38:03,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:03,967 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 831 transitions. [2023-11-23 07:38:03,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-23 07:38:03,967 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 831 transitions. [2023-11-23 07:38:03,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-11-23 07:38:03,970 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:03,970 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:03,996 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 07:38:04,188 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 07:38:04,188 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:04,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:04,189 INFO L85 PathProgramCache]: Analyzing trace with hash 267120226, now seen corresponding path program 4 times [2023-11-23 07:38:04,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:04,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652107698] [2023-11-23 07:38:04,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:04,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:04,332 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:04,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1454975404] [2023-11-23 07:38:04,332 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 07:38:04,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:04,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:04,348 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 07:38:04,358 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 07:38:04,955 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 07:38:04,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:38:04,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 1880 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 07:38:04,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:05,083 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-11-23 07:38:05,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:05,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:05,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652107698] [2023-11-23 07:38:05,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:05,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454975404] [2023-11-23 07:38:05,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454975404] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:05,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:05,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:38:05,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503170631] [2023-11-23 07:38:05,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:05,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:38:05,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:05,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:38:05,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:38:05,088 INFO L87 Difference]: Start difference. First operand 541 states and 831 transitions. Second operand has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) [2023-11-23 07:38:06,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:06,445 INFO L93 Difference]: Finished difference Result 1152 states and 1784 transitions. [2023-11-23 07:38:06,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:38:06,446 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) Word has length 271 [2023-11-23 07:38:06,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:06,451 INFO L225 Difference]: With dead ends: 1152 [2023-11-23 07:38:06,451 INFO L226 Difference]: Without dead ends: 660 [2023-11-23 07:38:06,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:38:06,454 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 122 mSDsluCounter, 4151 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 4881 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:06,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 4881 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-23 07:38:06,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2023-11-23 07:38:06,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 637. [2023-11-23 07:38:06,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 370 states have (on average 1.2891891891891891) internal successors, (477), 375 states have internal predecessors, (477), 228 states have call successors, (228), 34 states have call predecessors, (228), 37 states have return successors, (289), 227 states have call predecessors, (289), 226 states have call successors, (289) [2023-11-23 07:38:06,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 994 transitions. [2023-11-23 07:38:06,498 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 994 transitions. Word has length 271 [2023-11-23 07:38:06,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:06,499 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 994 transitions. [2023-11-23 07:38:06,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) [2023-11-23 07:38:06,499 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 994 transitions. [2023-11-23 07:38:06,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-11-23 07:38:06,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:06,502 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:06,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-23 07:38:06,716 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 07:38:06,716 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:06,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:06,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1505252656, now seen corresponding path program 5 times [2023-11-23 07:38:06,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:06,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897195398] [2023-11-23 07:38:06,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:06,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:06,863 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:06,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [280767926] [2023-11-23 07:38:06,864 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-23 07:38:06,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:06,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:06,865 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 07:38:06,887 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 07:38:07,331 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 07:38:07,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:38:07,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 07:38:07,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:07,378 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2023-11-23 07:38:07,379 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:07,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:07,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897195398] [2023-11-23 07:38:07,379 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:07,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280767926] [2023-11-23 07:38:07,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280767926] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:07,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:07,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:38:07,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618740295] [2023-11-23 07:38:07,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:07,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:38:07,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:07,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:38:07,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:38:07,382 INFO L87 Difference]: Start difference. First operand 637 states and 994 transitions. Second operand has 6 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-23 07:38:07,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:07,881 INFO L93 Difference]: Finished difference Result 1246 states and 1948 transitions. [2023-11-23 07:38:07,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:38:07,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) Word has length 284 [2023-11-23 07:38:07,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:07,888 INFO L225 Difference]: With dead ends: 1246 [2023-11-23 07:38:07,888 INFO L226 Difference]: Without dead ends: 643 [2023-11-23 07:38:07,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:38:07,892 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 1 mSDsluCounter, 2812 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3516 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:07,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3516 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 07:38:07,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2023-11-23 07:38:07,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 641. [2023-11-23 07:38:07,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 373 states have (on average 1.2868632707774799) internal successors, (480), 378 states have internal predecessors, (480), 228 states have call successors, (228), 34 states have call predecessors, (228), 38 states have return successors, (291), 228 states have call predecessors, (291), 226 states have call successors, (291) [2023-11-23 07:38:07,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 999 transitions. [2023-11-23 07:38:07,974 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 999 transitions. Word has length 284 [2023-11-23 07:38:07,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:07,974 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 999 transitions. [2023-11-23 07:38:07,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-23 07:38:07,985 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 999 transitions. [2023-11-23 07:38:07,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-11-23 07:38:07,988 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:07,988 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:08,007 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 07:38:08,204 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 07:38:08,204 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:08,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:08,205 INFO L85 PathProgramCache]: Analyzing trace with hash 798767134, now seen corresponding path program 1 times [2023-11-23 07:38:08,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:08,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206011661] [2023-11-23 07:38:08,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:08,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:08,299 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:08,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [124731747] [2023-11-23 07:38:08,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:08,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:08,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:08,301 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 07:38:08,321 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 07:38:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:38:09,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 4352 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 07:38:09,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:09,235 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2023-11-23 07:38:09,235 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:09,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:09,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206011661] [2023-11-23 07:38:09,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:09,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124731747] [2023-11-23 07:38:09,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124731747] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:09,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:09,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 07:38:09,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206087094] [2023-11-23 07:38:09,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:09,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:38:09,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:09,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:38:09,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:38:09,238 INFO L87 Difference]: Start difference. First operand 641 states and 999 transitions. Second operand has 9 states, 8 states have (on average 13.5) internal successors, (108), 9 states have internal predecessors, (108), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 5 states have call predecessors, (33), 6 states have call successors, (33) [2023-11-23 07:38:10,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:10,795 INFO L93 Difference]: Finished difference Result 1291 states and 2017 transitions. [2023-11-23 07:38:10,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:38:10,796 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.5) internal successors, (108), 9 states have internal predecessors, (108), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 5 states have call predecessors, (33), 6 states have call successors, (33) Word has length 271 [2023-11-23 07:38:10,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:10,801 INFO L225 Difference]: With dead ends: 1291 [2023-11-23 07:38:10,803 INFO L226 Difference]: Without dead ends: 689 [2023-11-23 07:38:10,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:38:10,820 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 202 mSDsluCounter, 4191 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 4833 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:10,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 4833 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-23 07:38:10,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2023-11-23 07:38:10,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 625. [2023-11-23 07:38:10,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 359 states have (on average 1.2841225626740946) internal successors, (461), 364 states have internal predecessors, (461), 227 states have call successors, (227), 34 states have call predecessors, (227), 37 states have return successors, (280), 226 states have call predecessors, (280), 225 states have call successors, (280) [2023-11-23 07:38:10,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 968 transitions. [2023-11-23 07:38:10,909 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 968 transitions. Word has length 271 [2023-11-23 07:38:10,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:10,909 INFO L495 AbstractCegarLoop]: Abstraction has 625 states and 968 transitions. [2023-11-23 07:38:10,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.5) internal successors, (108), 9 states have internal predecessors, (108), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 5 states have call predecessors, (33), 6 states have call successors, (33) [2023-11-23 07:38:10,910 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 968 transitions. [2023-11-23 07:38:10,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-11-23 07:38:10,912 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:10,912 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:10,955 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 07:38:11,128 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 07:38:11,128 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:11,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:11,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1444434012, now seen corresponding path program 1 times [2023-11-23 07:38:11,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:11,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098954462] [2023-11-23 07:38:11,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:11,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:11,207 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:11,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [172689760] [2023-11-23 07:38:11,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:11,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:11,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:11,209 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 07:38:11,211 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 07:38:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:38:12,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 4458 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 07:38:12,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:12,221 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 306 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-11-23 07:38:12,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:12,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:12,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098954462] [2023-11-23 07:38:12,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:12,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172689760] [2023-11-23 07:38:12,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172689760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:12,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:12,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 07:38:12,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983590838] [2023-11-23 07:38:12,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:12,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:38:12,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:12,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:38:12,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:38:12,225 INFO L87 Difference]: Start difference. First operand 625 states and 968 transitions. Second operand has 9 states, 8 states have (on average 11.75) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2023-11-23 07:38:13,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:13,486 INFO L93 Difference]: Finished difference Result 1146 states and 1771 transitions. [2023-11-23 07:38:13,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:38:13,486 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) Word has length 279 [2023-11-23 07:38:13,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:13,491 INFO L225 Difference]: With dead ends: 1146 [2023-11-23 07:38:13,491 INFO L226 Difference]: Without dead ends: 625 [2023-11-23 07:38:13,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:38:13,494 INFO L413 NwaCegarLoop]: 644 mSDtfsCounter, 227 mSDsluCounter, 4174 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 4818 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:13,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 4818 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 07:38:13,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2023-11-23 07:38:13,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 625. [2023-11-23 07:38:13,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 359 states have (on average 1.2813370473537604) internal successors, (460), 365 states have internal predecessors, (460), 226 states have call successors, (226), 34 states have call predecessors, (226), 38 states have return successors, (281), 225 states have call predecessors, (281), 224 states have call successors, (281) [2023-11-23 07:38:13,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 967 transitions. [2023-11-23 07:38:13,537 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 967 transitions. Word has length 279 [2023-11-23 07:38:13,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:13,538 INFO L495 AbstractCegarLoop]: Abstraction has 625 states and 967 transitions. [2023-11-23 07:38:13,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2023-11-23 07:38:13,538 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 967 transitions. [2023-11-23 07:38:13,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-11-23 07:38:13,540 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:13,540 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:13,567 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 07:38:13,752 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 07:38:13,752 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:13,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:13,753 INFO L85 PathProgramCache]: Analyzing trace with hash 2014031470, now seen corresponding path program 2 times [2023-11-23 07:38:13,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:13,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970603915] [2023-11-23 07:38:13,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:13,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:13,881 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:13,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766524340] [2023-11-23 07:38:13,881 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:38:13,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:13,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:13,884 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 07:38:13,892 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 07:38:14,834 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:38:14,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:38:14,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 4547 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 07:38:14,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:14,867 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 07:38:14,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-23 07:38:14,976 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 326 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-23 07:38:14,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:14,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:14,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970603915] [2023-11-23 07:38:14,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:14,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766524340] [2023-11-23 07:38:14,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766524340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:14,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:14,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 07:38:14,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459534049] [2023-11-23 07:38:14,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:14,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:38:14,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:14,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:38:14,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:38:14,980 INFO L87 Difference]: Start difference. First operand 625 states and 967 transitions. Second operand has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2023-11-23 07:38:15,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:15,541 INFO L93 Difference]: Finished difference Result 1072 states and 1636 transitions. [2023-11-23 07:38:15,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:38:15,541 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) Word has length 284 [2023-11-23 07:38:15,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:15,548 INFO L225 Difference]: With dead ends: 1072 [2023-11-23 07:38:15,549 INFO L226 Difference]: Without dead ends: 547 [2023-11-23 07:38:15,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:38:15,551 INFO L413 NwaCegarLoop]: 679 mSDtfsCounter, 177 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 3805 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:15,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 3805 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:38:15,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2023-11-23 07:38:15,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 545. [2023-11-23 07:38:15,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 308 states have (on average 1.2629870129870129) internal successors, (389), 311 states have internal predecessors, (389), 199 states have call successors, (199), 33 states have call predecessors, (199), 36 states have return successors, (242), 200 states have call predecessors, (242), 197 states have call successors, (242) [2023-11-23 07:38:15,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 830 transitions. [2023-11-23 07:38:15,588 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 830 transitions. Word has length 284 [2023-11-23 07:38:15,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:15,589 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 830 transitions. [2023-11-23 07:38:15,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2023-11-23 07:38:15,589 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 830 transitions. [2023-11-23 07:38:15,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2023-11-23 07:38:15,591 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:15,591 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:15,615 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 07:38:15,800 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 07:38:15,801 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:15,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:15,801 INFO L85 PathProgramCache]: Analyzing trace with hash 33208752, now seen corresponding path program 2 times [2023-11-23 07:38:15,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:15,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241297890] [2023-11-23 07:38:15,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:15,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:15,891 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:15,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [67188921] [2023-11-23 07:38:15,892 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:38:15,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:15,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:15,893 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 07:38:15,911 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 07:38:16,920 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:38:16,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:38:16,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 4653 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 07:38:16,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:16,985 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 07:38:16,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-23 07:38:17,151 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2023-11-23 07:38:17,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:17,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:17,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241297890] [2023-11-23 07:38:17,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:17,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67188921] [2023-11-23 07:38:17,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67188921] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:17,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:17,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:38:17,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191487103] [2023-11-23 07:38:17,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:17,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:38:17,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:17,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:38:17,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:38:17,155 INFO L87 Difference]: Start difference. First operand 545 states and 830 transitions. Second operand has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 6 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2023-11-23 07:38:17,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:17,993 INFO L93 Difference]: Finished difference Result 1051 states and 1608 transitions. [2023-11-23 07:38:17,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:38:17,994 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 6 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) Word has length 292 [2023-11-23 07:38:17,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:17,997 INFO L225 Difference]: With dead ends: 1051 [2023-11-23 07:38:17,997 INFO L226 Difference]: Without dead ends: 551 [2023-11-23 07:38:18,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:38:18,000 INFO L413 NwaCegarLoop]: 672 mSDtfsCounter, 196 mSDsluCounter, 3741 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 4413 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:18,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 4413 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 07:38:18,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-11-23 07:38:18,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 545. [2023-11-23 07:38:18,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 308 states have (on average 1.2629870129870129) internal successors, (389), 311 states have internal predecessors, (389), 199 states have call successors, (199), 33 states have call predecessors, (199), 36 states have return successors, (242), 200 states have call predecessors, (242), 197 states have call successors, (242) [2023-11-23 07:38:18,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 830 transitions. [2023-11-23 07:38:18,035 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 830 transitions. Word has length 292 [2023-11-23 07:38:18,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:18,036 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 830 transitions. [2023-11-23 07:38:18,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 6 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2023-11-23 07:38:18,036 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 830 transitions. [2023-11-23 07:38:18,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2023-11-23 07:38:18,038 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:18,038 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 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, 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, 1, 1, 1] [2023-11-23 07:38:18,065 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 07:38:18,252 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 07:38:18,252 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:18,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:18,253 INFO L85 PathProgramCache]: Analyzing trace with hash 434483525, now seen corresponding path program 1 times [2023-11-23 07:38:18,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:18,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175177621] [2023-11-23 07:38:18,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:18,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:18,372 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:18,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2030476449] [2023-11-23 07:38:18,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:18,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:18,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:18,376 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 07:38:18,394 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 07:38:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:38:19,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 4776 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 07:38:19,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:19,518 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2023-11-23 07:38:19,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:19,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:19,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175177621] [2023-11-23 07:38:19,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:19,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030476449] [2023-11-23 07:38:19,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030476449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:19,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:19,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 07:38:19,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576332487] [2023-11-23 07:38:19,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:19,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:38:19,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:19,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:38:19,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:38:19,521 INFO L87 Difference]: Start difference. First operand 545 states and 830 transitions. Second operand has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) [2023-11-23 07:38:20,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:20,546 INFO L93 Difference]: Finished difference Result 1061 states and 1617 transitions. [2023-11-23 07:38:20,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:38:20,547 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) Word has length 308 [2023-11-23 07:38:20,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:20,550 INFO L225 Difference]: With dead ends: 1061 [2023-11-23 07:38:20,550 INFO L226 Difference]: Without dead ends: 561 [2023-11-23 07:38:20,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2023-11-23 07:38:20,552 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 247 mSDsluCounter, 4735 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 5371 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:20,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 5371 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 07:38:20,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-11-23 07:38:20,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 529. [2023-11-23 07:38:20,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 294 states have (on average 1.2585034013605443) internal successors, (370), 297 states have internal predecessors, (370), 198 states have call successors, (198), 33 states have call predecessors, (198), 35 states have return successors, (233), 198 states have call predecessors, (233), 196 states have call successors, (233) [2023-11-23 07:38:20,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 801 transitions. [2023-11-23 07:38:20,587 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 801 transitions. Word has length 308 [2023-11-23 07:38:20,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:20,588 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 801 transitions. [2023-11-23 07:38:20,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) [2023-11-23 07:38:20,588 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 801 transitions. [2023-11-23 07:38:20,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-11-23 07:38:20,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:20,590 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:20,616 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 07:38:20,804 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 07:38:20,804 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:20,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:20,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1688102049, now seen corresponding path program 2 times [2023-11-23 07:38:20,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:20,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193102060] [2023-11-23 07:38:20,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:20,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:20,890 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:20,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2027223612] [2023-11-23 07:38:20,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:38:20,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:20,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:20,892 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 07:38:20,907 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 07:38:22,027 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:38:22,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:38:22,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 4971 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 07:38:22,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:22,183 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2023-11-23 07:38:22,188 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:22,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:22,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193102060] [2023-11-23 07:38:22,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:22,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027223612] [2023-11-23 07:38:22,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027223612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:22,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:22,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:38:22,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416037424] [2023-11-23 07:38:22,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:22,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:38:22,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:22,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:38:22,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:38:22,193 INFO L87 Difference]: Start difference. First operand 529 states and 801 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 6 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 5 states have call predecessors, (31), 6 states have call successors, (31) [2023-11-23 07:38:23,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:23,098 INFO L93 Difference]: Finished difference Result 1007 states and 1524 transitions. [2023-11-23 07:38:23,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:38:23,099 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 6 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 5 states have call predecessors, (31), 6 states have call successors, (31) Word has length 321 [2023-11-23 07:38:23,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:23,122 INFO L225 Difference]: With dead ends: 1007 [2023-11-23 07:38:23,123 INFO L226 Difference]: Without dead ends: 529 [2023-11-23 07:38:23,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:38:23,126 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 179 mSDsluCounter, 3613 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 4267 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:23,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 4267 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 07:38:23,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-11-23 07:38:23,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2023-11-23 07:38:23,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 294 states have (on average 1.2585034013605443) internal successors, (370), 297 states have internal predecessors, (370), 198 states have call successors, (198), 33 states have call predecessors, (198), 35 states have return successors, (230), 198 states have call predecessors, (230), 196 states have call successors, (230) [2023-11-23 07:38:23,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 798 transitions. [2023-11-23 07:38:23,211 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 798 transitions. Word has length 321 [2023-11-23 07:38:23,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:23,211 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 798 transitions. [2023-11-23 07:38:23,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 6 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 5 states have call predecessors, (31), 6 states have call successors, (31) [2023-11-23 07:38:23,212 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 798 transitions. [2023-11-23 07:38:23,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2023-11-23 07:38:23,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:23,214 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:23,241 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 07:38:23,432 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 07:38:23,432 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:23,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:23,433 INFO L85 PathProgramCache]: Analyzing trace with hash 269118291, now seen corresponding path program 3 times [2023-11-23 07:38:23,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:23,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978449250] [2023-11-23 07:38:23,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:23,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:23,518 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:23,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [410019058] [2023-11-23 07:38:23,518 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 07:38:23,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:23,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:23,519 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 07:38:23,521 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 07:38:24,273 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 07:38:24,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:38:24,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 2184 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 07:38:24,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:24,360 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 84 proven. 2 refuted. 0 times theorem prover too weak. 807 trivial. 0 not checked. [2023-11-23 07:38:24,361 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:38:24,709 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 84 proven. 3 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2023-11-23 07:38:24,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:24,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978449250] [2023-11-23 07:38:24,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:24,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410019058] [2023-11-23 07:38:24,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410019058] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:38:24,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:38:24,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2023-11-23 07:38:24,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339335445] [2023-11-23 07:38:24,710 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 07:38:24,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:38:24,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:24,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:38:24,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:38:24,716 INFO L87 Difference]: Start difference. First operand 529 states and 798 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-23 07:38:25,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:25,640 INFO L93 Difference]: Finished difference Result 1003 states and 1528 transitions. [2023-11-23 07:38:25,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:38:25,641 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 334 [2023-11-23 07:38:25,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:25,644 INFO L225 Difference]: With dead ends: 1003 [2023-11-23 07:38:25,644 INFO L226 Difference]: Without dead ends: 531 [2023-11-23 07:38:25,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 662 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:38:25,646 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 21 mSDsluCounter, 3183 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3851 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:25,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3851 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 07:38:25,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2023-11-23 07:38:25,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2023-11-23 07:38:25,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 296 states have (on average 1.2567567567567568) internal successors, (372), 298 states have internal predecessors, (372), 198 states have call successors, (198), 34 states have call predecessors, (198), 35 states have return successors, (229), 198 states have call predecessors, (229), 196 states have call successors, (229) [2023-11-23 07:38:25,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 799 transitions. [2023-11-23 07:38:25,683 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 799 transitions. Word has length 334 [2023-11-23 07:38:25,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:25,684 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 799 transitions. [2023-11-23 07:38:25,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-23 07:38:25,684 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 799 transitions. [2023-11-23 07:38:25,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-11-23 07:38:25,686 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:25,687 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:25,711 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 07:38:25,900 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 07:38:25,900 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:25,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:25,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1258571943, now seen corresponding path program 1 times [2023-11-23 07:38:25,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:25,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589733252] [2023-11-23 07:38:25,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:25,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:25,993 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:25,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1532035170] [2023-11-23 07:38:25,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:25,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:25,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:25,995 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 07:38:26,021 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 07:38:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:38:27,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 5361 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-23 07:38:27,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:27,361 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2023-11-23 07:38:27,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:27,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:27,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589733252] [2023-11-23 07:38:27,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:27,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532035170] [2023-11-23 07:38:27,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532035170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:27,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:27,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:38:27,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754553255] [2023-11-23 07:38:27,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:27,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:38:27,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:27,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:38:27,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:38:27,366 INFO L87 Difference]: Start difference. First operand 531 states and 799 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 6 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 6 states have call predecessors, (31), 6 states have call successors, (31) [2023-11-23 07:38:28,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:28,179 INFO L93 Difference]: Finished difference Result 1086 states and 1644 transitions. [2023-11-23 07:38:28,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:38:28,180 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 6 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 6 states have call predecessors, (31), 6 states have call successors, (31) Word has length 347 [2023-11-23 07:38:28,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:28,183 INFO L225 Difference]: With dead ends: 1086 [2023-11-23 07:38:28,183 INFO L226 Difference]: Without dead ends: 609 [2023-11-23 07:38:28,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:38:28,186 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 162 mSDsluCounter, 4280 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 5009 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:28,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 5009 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 07:38:28,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2023-11-23 07:38:28,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 549. [2023-11-23 07:38:28,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 305 states have (on average 1.2557377049180327) internal successors, (383), 307 states have internal predecessors, (383), 207 states have call successors, (207), 34 states have call predecessors, (207), 35 states have return successors, (238), 207 states have call predecessors, (238), 205 states have call successors, (238) [2023-11-23 07:38:28,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 828 transitions. [2023-11-23 07:38:28,230 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 828 transitions. Word has length 347 [2023-11-23 07:38:28,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:28,231 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 828 transitions. [2023-11-23 07:38:28,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 6 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 6 states have call predecessors, (31), 6 states have call successors, (31) [2023-11-23 07:38:28,231 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 828 transitions. [2023-11-23 07:38:28,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-11-23 07:38:28,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:28,233 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:28,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-23 07:38:28,443 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 07:38:28,444 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:28,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:28,444 INFO L85 PathProgramCache]: Analyzing trace with hash -579299689, now seen corresponding path program 1 times [2023-11-23 07:38:28,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:28,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684124516] [2023-11-23 07:38:28,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:28,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:28,671 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:28,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1644229094] [2023-11-23 07:38:28,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:28,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:28,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:28,675 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 07:38:28,678 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 07:38:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:38:29,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 5358 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-23 07:38:29,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:29,955 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 466 proven. 0 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2023-11-23 07:38:29,955 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:29,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:29,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684124516] [2023-11-23 07:38:29,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:29,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644229094] [2023-11-23 07:38:29,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644229094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:29,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:29,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 07:38:29,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863931626] [2023-11-23 07:38:29,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:29,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:38:29,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:29,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:38:29,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:38:29,971 INFO L87 Difference]: Start difference. First operand 549 states and 828 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 5 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 5 states have call predecessors, (31), 5 states have call successors, (31) [2023-11-23 07:38:30,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:30,598 INFO L93 Difference]: Finished difference Result 1092 states and 1652 transitions. [2023-11-23 07:38:30,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:38:30,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 5 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 5 states have call predecessors, (31), 5 states have call successors, (31) Word has length 347 [2023-11-23 07:38:30,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:30,602 INFO L225 Difference]: With dead ends: 1092 [2023-11-23 07:38:30,603 INFO L226 Difference]: Without dead ends: 609 [2023-11-23 07:38:30,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:38:30,605 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 147 mSDsluCounter, 3608 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 4357 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:30,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 4357 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 07:38:30,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2023-11-23 07:38:30,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 549. [2023-11-23 07:38:30,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 305 states have (on average 1.2524590163934426) internal successors, (382), 307 states have internal predecessors, (382), 207 states have call successors, (207), 34 states have call predecessors, (207), 35 states have return successors, (238), 207 states have call predecessors, (238), 205 states have call successors, (238) [2023-11-23 07:38:30,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 827 transitions. [2023-11-23 07:38:30,648 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 827 transitions. Word has length 347 [2023-11-23 07:38:30,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:30,649 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 827 transitions. [2023-11-23 07:38:30,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 5 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 5 states have call predecessors, (31), 5 states have call successors, (31) [2023-11-23 07:38:30,649 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 827 transitions. [2023-11-23 07:38:30,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-11-23 07:38:30,651 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:30,652 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:30,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-23 07:38:30,868 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 07:38:30,868 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:30,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:30,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1462808679, now seen corresponding path program 1 times [2023-11-23 07:38:30,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:30,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572588671] [2023-11-23 07:38:30,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:30,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:30,957 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:30,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [338497634] [2023-11-23 07:38:30,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:30,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:30,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:30,959 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 07:38:30,966 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 07:38:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:38:32,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 5355 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 07:38:32,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:32,208 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 449 trivial. 0 not checked. [2023-11-23 07:38:32,209 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:32,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:32,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572588671] [2023-11-23 07:38:32,209 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:32,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338497634] [2023-11-23 07:38:32,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338497634] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:32,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:32,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:38:32,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261042422] [2023-11-23 07:38:32,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:32,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:38:32,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:32,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:38:32,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:38:32,212 INFO L87 Difference]: Start difference. First operand 549 states and 827 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2023-11-23 07:38:32,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:32,904 INFO L93 Difference]: Finished difference Result 1098 states and 1660 transitions. [2023-11-23 07:38:32,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:38:32,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 347 [2023-11-23 07:38:32,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:32,908 INFO L225 Difference]: With dead ends: 1098 [2023-11-23 07:38:32,909 INFO L226 Difference]: Without dead ends: 609 [2023-11-23 07:38:32,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:38:32,925 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 102 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 3591 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:32,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 3591 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 07:38:32,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2023-11-23 07:38:32,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 549. [2023-11-23 07:38:32,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 305 states have (on average 1.2491803278688525) internal successors, (381), 307 states have internal predecessors, (381), 207 states have call successors, (207), 34 states have call predecessors, (207), 35 states have return successors, (238), 207 states have call predecessors, (238), 205 states have call successors, (238) [2023-11-23 07:38:32,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 826 transitions. [2023-11-23 07:38:32,978 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 826 transitions. Word has length 347 [2023-11-23 07:38:32,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:32,978 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 826 transitions. [2023-11-23 07:38:32,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2023-11-23 07:38:32,979 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 826 transitions. [2023-11-23 07:38:32,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-11-23 07:38:32,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:32,982 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:33,014 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 07:38:33,196 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 07:38:33,196 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:33,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:33,197 INFO L85 PathProgramCache]: Analyzing trace with hash -58939493, now seen corresponding path program 1 times [2023-11-23 07:38:33,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:33,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548107073] [2023-11-23 07:38:33,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:33,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:33,298 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:33,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [418515742] [2023-11-23 07:38:33,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:33,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:33,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:33,300 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 07:38:33,319 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 07:38:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:38:34,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 5352 conjuncts, 123 conjunts are in the unsatisfiable core [2023-11-23 07:38:34,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:34,590 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 07:38:34,592 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 07:38:35,537 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 557 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2023-11-23 07:38:35,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:35,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:35,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548107073] [2023-11-23 07:38:35,538 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:35,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418515742] [2023-11-23 07:38:35,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418515742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:35,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:35,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-23 07:38:35,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643424279] [2023-11-23 07:38:35,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:35,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 07:38:35,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:35,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 07:38:35,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:38:35,540 INFO L87 Difference]: Start difference. First operand 549 states and 826 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 7 states have call successors, (36), 3 states have call predecessors, (36), 4 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-11-23 07:38:43,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:43,161 INFO L93 Difference]: Finished difference Result 1197 states and 1881 transitions. [2023-11-23 07:38:43,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 07:38:43,162 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 7 states have call successors, (36), 3 states have call predecessors, (36), 4 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 347 [2023-11-23 07:38:43,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:43,165 INFO L225 Difference]: With dead ends: 1197 [2023-11-23 07:38:43,165 INFO L226 Difference]: Without dead ends: 677 [2023-11-23 07:38:43,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2023-11-23 07:38:43,168 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 326 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 6471 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 3666 SdHoareTripleChecker+Invalid, 6699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 6471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:43,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 3666 Invalid, 6699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 6471 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-11-23 07:38:43,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2023-11-23 07:38:43,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 574. [2023-11-23 07:38:43,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 329 states have (on average 1.2583586626139818) internal successors, (414), 330 states have internal predecessors, (414), 207 states have call successors, (207), 34 states have call predecessors, (207), 36 states have return successors, (271), 209 states have call predecessors, (271), 205 states have call successors, (271) [2023-11-23 07:38:43,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 892 transitions. [2023-11-23 07:38:43,216 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 892 transitions. Word has length 347 [2023-11-23 07:38:43,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:43,217 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 892 transitions. [2023-11-23 07:38:43,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 7 states have call successors, (36), 3 states have call predecessors, (36), 4 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-11-23 07:38:43,217 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 892 transitions. [2023-11-23 07:38:43,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-11-23 07:38:43,219 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:43,219 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:43,248 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 07:38:43,432 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 07:38:43,432 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:43,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:43,433 INFO L85 PathProgramCache]: Analyzing trace with hash -974105251, now seen corresponding path program 1 times [2023-11-23 07:38:43,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:43,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307093468] [2023-11-23 07:38:43,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:43,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:43,530 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:43,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [679464183] [2023-11-23 07:38:43,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:43,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:43,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:43,532 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 07:38:43,556 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 07:38:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:38:44,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 5337 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 07:38:44,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:44,846 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2023-11-23 07:38:44,846 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:44,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:44,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307093468] [2023-11-23 07:38:44,847 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:44,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679464183] [2023-11-23 07:38:44,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679464183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:44,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:44,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:38:44,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276693230] [2023-11-23 07:38:44,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:44,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:38:44,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:44,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:38:44,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:38:44,850 INFO L87 Difference]: Start difference. First operand 574 states and 892 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-23 07:38:45,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:45,142 INFO L93 Difference]: Finished difference Result 1122 states and 1815 transitions. [2023-11-23 07:38:45,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:38:45,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 347 [2023-11-23 07:38:45,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:45,147 INFO L225 Difference]: With dead ends: 1122 [2023-11-23 07:38:45,147 INFO L226 Difference]: Without dead ends: 577 [2023-11-23 07:38:45,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 345 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 07:38:45,152 INFO L413 NwaCegarLoop]: 710 mSDtfsCounter, 7 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:45,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2110 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:38:45,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2023-11-23 07:38:45,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 574. [2023-11-23 07:38:45,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 329 states have (on average 1.2553191489361701) internal successors, (413), 330 states have internal predecessors, (413), 207 states have call successors, (207), 34 states have call predecessors, (207), 36 states have return successors, (271), 209 states have call predecessors, (271), 205 states have call successors, (271) [2023-11-23 07:38:45,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 891 transitions. [2023-11-23 07:38:45,249 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 891 transitions. Word has length 347 [2023-11-23 07:38:45,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:45,249 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 891 transitions. [2023-11-23 07:38:45,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-23 07:38:45,249 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 891 transitions. [2023-11-23 07:38:45,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-23 07:38:45,264 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:45,264 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:45,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-23 07:38:45,484 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 07:38:45,484 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:45,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:45,485 INFO L85 PathProgramCache]: Analyzing trace with hash -450016575, now seen corresponding path program 1 times [2023-11-23 07:38:45,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:45,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952339292] [2023-11-23 07:38:45,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:45,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:45,610 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:45,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1666497794] [2023-11-23 07:38:45,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:45,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:45,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:45,612 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 07:38:45,613 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 07:38:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:38:47,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 5367 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 07:38:47,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:47,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1003 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2023-11-23 07:38:47,096 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:47,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:47,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952339292] [2023-11-23 07:38:47,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:47,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666497794] [2023-11-23 07:38:47,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666497794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:47,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:47,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:38:47,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223121074] [2023-11-23 07:38:47,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:47,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:38:47,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:47,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:38:47,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:38:47,099 INFO L87 Difference]: Start difference. First operand 574 states and 891 transitions. Second operand has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 2 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-23 07:38:47,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:47,456 INFO L93 Difference]: Finished difference Result 1082 states and 1682 transitions. [2023-11-23 07:38:47,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:38:47,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 2 states have call predecessors, (31), 3 states have call successors, (31) Word has length 353 [2023-11-23 07:38:47,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:47,460 INFO L225 Difference]: With dead ends: 1082 [2023-11-23 07:38:47,460 INFO L226 Difference]: Without dead ends: 554 [2023-11-23 07:38:47,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 349 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 07:38:47,463 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 2 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:47,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2546 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 07:38:47,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2023-11-23 07:38:47,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2023-11-23 07:38:47,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 318 states have (on average 1.2578616352201257) internal successors, (400), 320 states have internal predecessors, (400), 198 states have call successors, (198), 34 states have call predecessors, (198), 36 states have return successors, (260), 199 states have call predecessors, (260), 196 states have call successors, (260) [2023-11-23 07:38:47,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 858 transitions. [2023-11-23 07:38:47,505 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 858 transitions. Word has length 353 [2023-11-23 07:38:47,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:47,505 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 858 transitions. [2023-11-23 07:38:47,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 2 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-23 07:38:47,506 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 858 transitions. [2023-11-23 07:38:47,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2023-11-23 07:38:47,508 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:47,508 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 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, 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 07:38:47,536 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 07:38:47,724 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 07:38:47,724 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:47,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:47,725 INFO L85 PathProgramCache]: Analyzing trace with hash -2061347474, now seen corresponding path program 1 times [2023-11-23 07:38:47,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:47,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487938285] [2023-11-23 07:38:47,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:47,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:47,813 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:47,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [980554846] [2023-11-23 07:38:47,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:47,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:47,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:47,815 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 07:38:47,833 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 07:38:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:38:49,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 5413 conjuncts, 61 conjunts are in the unsatisfiable core [2023-11-23 07:38:49,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:49,635 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 07:38:49,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 415 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2023-11-23 07:38:49,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:49,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:49,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487938285] [2023-11-23 07:38:49,936 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:49,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980554846] [2023-11-23 07:38:49,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980554846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:49,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:49,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-23 07:38:49,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284080796] [2023-11-23 07:38:49,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:49,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 07:38:49,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:49,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 07:38:49,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:38:49,939 INFO L87 Difference]: Start difference. First operand 554 states and 858 transitions. Second operand has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 13 states have internal predecessors, (114), 7 states have call successors, (38), 3 states have call predecessors, (38), 4 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) [2023-11-23 07:38:57,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:57,756 INFO L93 Difference]: Finished difference Result 1207 states and 1953 transitions. [2023-11-23 07:38:57,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 07:38:57,756 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 13 states have internal predecessors, (114), 7 states have call successors, (38), 3 states have call predecessors, (38), 4 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) Word has length 363 [2023-11-23 07:38:57,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:57,761 INFO L225 Difference]: With dead ends: 1207 [2023-11-23 07:38:57,761 INFO L226 Difference]: Without dead ends: 682 [2023-11-23 07:38:57,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2023-11-23 07:38:57,764 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 315 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 6507 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 3376 SdHoareTripleChecker+Invalid, 6736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 6507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:57,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 3376 Invalid, 6736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 6507 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-11-23 07:38:57,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2023-11-23 07:38:57,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 574. [2023-11-23 07:38:57,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 337 states have (on average 1.2670623145400592) internal successors, (427), 338 states have internal predecessors, (427), 198 states have call successors, (198), 34 states have call predecessors, (198), 37 states have return successors, (292), 201 states have call predecessors, (292), 196 states have call successors, (292) [2023-11-23 07:38:57,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 917 transitions. [2023-11-23 07:38:57,816 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 917 transitions. Word has length 363 [2023-11-23 07:38:57,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:57,817 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 917 transitions. [2023-11-23 07:38:57,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 13 states have internal predecessors, (114), 7 states have call successors, (38), 3 states have call predecessors, (38), 4 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) [2023-11-23 07:38:57,817 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 917 transitions. [2023-11-23 07:38:57,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2023-11-23 07:38:57,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:57,823 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 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, 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 07:38:57,854 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 07:38:58,034 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 07:38:58,035 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:58,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:58,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1684593008, now seen corresponding path program 1 times [2023-11-23 07:38:58,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:58,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899445973] [2023-11-23 07:38:58,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:58,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:58,272 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:58,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [805944956] [2023-11-23 07:38:58,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:58,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:58,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:58,288 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 07:38:58,348 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 07:39:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:01,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 5428 conjuncts, 68 conjunts are in the unsatisfiable core [2023-11-23 07:39:01,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:01,439 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 07:39:01,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 585 proven. 0 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2023-11-23 07:39:01,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:01,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:01,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899445973] [2023-11-23 07:39:01,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:01,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805944956] [2023-11-23 07:39:01,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805944956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:01,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:01,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 07:39:01,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432130451] [2023-11-23 07:39:01,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:01,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 07:39:01,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:01,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 07:39:01,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:39:01,898 INFO L87 Difference]: Start difference. First operand 574 states and 917 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 7 states have call successors, (38), 3 states have call predecessors, (38), 4 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) [2023-11-23 07:39:06,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:06,825 INFO L93 Difference]: Finished difference Result 1227 states and 2010 transitions. [2023-11-23 07:39:06,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 07:39:06,826 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 7 states have call successors, (38), 3 states have call predecessors, (38), 4 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) Word has length 363 [2023-11-23 07:39:06,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:06,829 INFO L225 Difference]: With dead ends: 1227 [2023-11-23 07:39:06,829 INFO L226 Difference]: Without dead ends: 682 [2023-11-23 07:39:06,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2023-11-23 07:39:06,832 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 308 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 4969 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 2683 SdHoareTripleChecker+Invalid, 5194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 4969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:06,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 2683 Invalid, 5194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 4969 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-23 07:39:06,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2023-11-23 07:39:06,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 574. [2023-11-23 07:39:06,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 337 states have (on average 1.261127596439169) internal successors, (425), 338 states have internal predecessors, (425), 198 states have call successors, (198), 34 states have call predecessors, (198), 37 states have return successors, (292), 201 states have call predecessors, (292), 196 states have call successors, (292) [2023-11-23 07:39:06,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 915 transitions. [2023-11-23 07:39:06,875 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 915 transitions. Word has length 363 [2023-11-23 07:39:06,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:06,876 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 915 transitions. [2023-11-23 07:39:06,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 7 states have call successors, (38), 3 states have call predecessors, (38), 4 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) [2023-11-23 07:39:06,876 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 915 transitions. [2023-11-23 07:39:06,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2023-11-23 07:39:06,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:06,879 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:06,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:07,100 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 07:39:07,100 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:07,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:07,101 INFO L85 PathProgramCache]: Analyzing trace with hash -867481494, now seen corresponding path program 1 times [2023-11-23 07:39:07,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:07,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617979673] [2023-11-23 07:39:07,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:07,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:07,229 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:07,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1496631196] [2023-11-23 07:39:07,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:07,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:07,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:07,231 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 07:39:07,249 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 07:39:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:08,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 5423 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 07:39:08,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:08,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2023-11-23 07:39:08,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:08,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:08,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617979673] [2023-11-23 07:39:08,865 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:08,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496631196] [2023-11-23 07:39:08,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496631196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:08,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:08,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:39:08,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19418389] [2023-11-23 07:39:08,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:08,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:39:08,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:08,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:39:08,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:39:08,874 INFO L87 Difference]: Start difference. First operand 574 states and 915 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-11-23 07:39:09,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:09,096 INFO L93 Difference]: Finished difference Result 1151 states and 1851 transitions. [2023-11-23 07:39:09,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:39:09,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 363 [2023-11-23 07:39:09,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:09,100 INFO L225 Difference]: With dead ends: 1151 [2023-11-23 07:39:09,100 INFO L226 Difference]: Without dead ends: 606 [2023-11-23 07:39:09,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 359 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 07:39:09,103 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 6 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2820 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:09,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2820 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:39:09,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2023-11-23 07:39:09,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 566. [2023-11-23 07:39:09,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 329 states have (on average 1.2553191489361701) internal successors, (413), 330 states have internal predecessors, (413), 198 states have call successors, (198), 34 states have call predecessors, (198), 37 states have return successors, (292), 201 states have call predecessors, (292), 196 states have call successors, (292) [2023-11-23 07:39:09,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 903 transitions. [2023-11-23 07:39:09,150 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 903 transitions. Word has length 363 [2023-11-23 07:39:09,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:09,150 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 903 transitions. [2023-11-23 07:39:09,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-11-23 07:39:09,151 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 903 transitions. [2023-11-23 07:39:09,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2023-11-23 07:39:09,153 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:09,153 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 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, 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 07:39:09,180 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 07:39:09,354 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 07:39:09,354 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:09,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:09,355 INFO L85 PathProgramCache]: Analyzing trace with hash -226769812, now seen corresponding path program 1 times [2023-11-23 07:39:09,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:09,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911612272] [2023-11-23 07:39:09,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:09,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:09,438 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:09,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [959403113] [2023-11-23 07:39:09,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:09,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:09,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:09,440 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 07:39:09,450 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 07:39:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:11,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 5428 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-23 07:39:11,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:11,375 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 07:39:11,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 403 proven. 0 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2023-11-23 07:39:11,717 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:11,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:11,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911612272] [2023-11-23 07:39:11,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:11,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959403113] [2023-11-23 07:39:11,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959403113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:11,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:11,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 07:39:11,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517077086] [2023-11-23 07:39:11,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:11,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 07:39:11,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:11,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 07:39:11,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:39:11,720 INFO L87 Difference]: Start difference. First operand 566 states and 903 transitions. Second operand has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 7 states have call successors, (38), 3 states have call predecessors, (38), 4 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) [2023-11-23 07:39:16,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:16,594 INFO L93 Difference]: Finished difference Result 1240 states and 2104 transitions. [2023-11-23 07:39:16,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 07:39:16,595 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 7 states have call successors, (38), 3 states have call predecessors, (38), 4 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) Word has length 363 [2023-11-23 07:39:16,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:16,599 INFO L225 Difference]: With dead ends: 1240 [2023-11-23 07:39:16,600 INFO L226 Difference]: Without dead ends: 703 [2023-11-23 07:39:16,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 352 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 07:39:16,602 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 324 mSDsluCounter, 2224 mSDsCounter, 0 mSdLazyCounter, 5010 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 2770 SdHoareTripleChecker+Invalid, 5242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 5010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:16,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 2770 Invalid, 5242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 5010 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-23 07:39:16,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2023-11-23 07:39:16,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 556. [2023-11-23 07:39:16,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 320 states have (on average 1.253125) internal successors, (401), 322 states have internal predecessors, (401), 198 states have call successors, (198), 34 states have call predecessors, (198), 36 states have return successors, (260), 199 states have call predecessors, (260), 196 states have call successors, (260) [2023-11-23 07:39:16,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 859 transitions. [2023-11-23 07:39:16,649 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 859 transitions. Word has length 363 [2023-11-23 07:39:16,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:16,650 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 859 transitions. [2023-11-23 07:39:16,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 7 states have call successors, (38), 3 states have call predecessors, (38), 4 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) [2023-11-23 07:39:16,650 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 859 transitions. [2023-11-23 07:39:16,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2023-11-23 07:39:16,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:16,653 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 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, 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 07:39:16,685 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 07:39:16,856 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 07:39:16,856 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:16,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:16,856 INFO L85 PathProgramCache]: Analyzing trace with hash 217517230, now seen corresponding path program 1 times [2023-11-23 07:39:16,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:16,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989945081] [2023-11-23 07:39:16,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:16,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:16,981 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:16,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1768786105] [2023-11-23 07:39:16,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:16,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:16,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:16,983 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 07:39:16,990 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 07:39:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:19,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 5413 conjuncts, 89 conjunts are in the unsatisfiable core [2023-11-23 07:39:19,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:19,286 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 07:39:19,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 536 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-11-23 07:39:19,711 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:19,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:19,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989945081] [2023-11-23 07:39:19,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:19,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768786105] [2023-11-23 07:39:19,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768786105] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:19,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:19,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 07:39:19,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782623845] [2023-11-23 07:39:19,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:19,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:39:19,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:19,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:39:19,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:39:19,714 INFO L87 Difference]: Start difference. First operand 556 states and 859 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 6 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) [2023-11-23 07:39:25,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:25,046 INFO L93 Difference]: Finished difference Result 1207 states and 1905 transitions. [2023-11-23 07:39:25,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:39:25,047 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 6 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) Word has length 363 [2023-11-23 07:39:25,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:25,052 INFO L225 Difference]: With dead ends: 1207 [2023-11-23 07:39:25,060 INFO L226 Difference]: Without dead ends: 680 [2023-11-23 07:39:25,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:39:25,078 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 314 mSDsluCounter, 1719 mSDsCounter, 0 mSdLazyCounter, 3817 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 4046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 3817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:25,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 2270 Invalid, 4046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 3817 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-23 07:39:25,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2023-11-23 07:39:25,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 560. [2023-11-23 07:39:25,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 324 states have (on average 1.2561728395061729) internal successors, (407), 326 states have internal predecessors, (407), 198 states have call successors, (198), 34 states have call predecessors, (198), 36 states have return successors, (260), 199 states have call predecessors, (260), 196 states have call successors, (260) [2023-11-23 07:39:25,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 865 transitions. [2023-11-23 07:39:25,182 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 865 transitions. Word has length 363 [2023-11-23 07:39:25,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:25,196 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 865 transitions. [2023-11-23 07:39:25,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 6 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) [2023-11-23 07:39:25,197 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 865 transitions. [2023-11-23 07:39:25,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2023-11-23 07:39:25,199 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:25,199 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 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, 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 07:39:25,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:25,420 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 07:39:25,420 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:25,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:25,421 INFO L85 PathProgramCache]: Analyzing trace with hash -331509584, now seen corresponding path program 1 times [2023-11-23 07:39:25,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:25,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063626772] [2023-11-23 07:39:25,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:25,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:25,540 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:25,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1601356850] [2023-11-23 07:39:25,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:25,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:25,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:25,542 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 07:39:25,543 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 07:39:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:28,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 5428 conjuncts, 53 conjunts are in the unsatisfiable core [2023-11-23 07:39:28,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:28,688 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 07:39:28,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 616 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2023-11-23 07:39:28,951 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:28,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:28,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063626772] [2023-11-23 07:39:28,951 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:28,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601356850] [2023-11-23 07:39:28,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601356850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:28,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:28,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 07:39:28,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393881502] [2023-11-23 07:39:28,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:28,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 07:39:28,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:28,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 07:39:28,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:39:28,954 INFO L87 Difference]: Start difference. First operand 560 states and 865 transitions. Second operand has 11 states, 11 states have (on average 12.0) internal successors, (132), 11 states have internal predecessors, (132), 7 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2023-11-23 07:39:31,741 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 07:39:35,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:35,813 INFO L93 Difference]: Finished difference Result 1224 states and 1970 transitions. [2023-11-23 07:39:35,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:39:35,814 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 11 states have internal predecessors, (132), 7 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) Word has length 363 [2023-11-23 07:39:35,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:35,818 INFO L225 Difference]: With dead ends: 1224 [2023-11-23 07:39:35,818 INFO L226 Difference]: Without dead ends: 693 [2023-11-23 07:39:35,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2023-11-23 07:39:35,820 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 316 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 4705 mSolverCounterSat, 226 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 2475 SdHoareTripleChecker+Invalid, 4932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 4705 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:35,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 2475 Invalid, 4932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 4705 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2023-11-23 07:39:35,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2023-11-23 07:39:35,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 580. [2023-11-23 07:39:35,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 343 states have (on average 1.2478134110787171) internal successors, (428), 343 states have internal predecessors, (428), 198 states have call successors, (198), 34 states have call predecessors, (198), 37 states have return successors, (292), 202 states have call predecessors, (292), 196 states have call successors, (292) [2023-11-23 07:39:35,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 918 transitions. [2023-11-23 07:39:35,870 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 918 transitions. Word has length 363 [2023-11-23 07:39:35,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:35,870 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 918 transitions. [2023-11-23 07:39:35,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 11 states have internal predecessors, (132), 7 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2023-11-23 07:39:35,870 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 918 transitions. [2023-11-23 07:39:35,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2023-11-23 07:39:35,873 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:35,873 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 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, 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 07:39:35,917 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 07:39:36,100 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 07:39:36,100 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:36,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:36,101 INFO L85 PathProgramCache]: Analyzing trace with hash -448691924, now seen corresponding path program 1 times [2023-11-23 07:39:36,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:36,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693596312] [2023-11-23 07:39:36,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:36,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:36,198 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:36,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196497680] [2023-11-23 07:39:36,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:36,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:36,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:36,202 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 07:39:36,222 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 07:39:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:47,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 5404 conjuncts, 258 conjunts are in the unsatisfiable core [2023-11-23 07:39:47,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:47,287 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 07:39:47,536 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 07:39:47,599 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 07:40:04,184 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 07:40:12,651 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 07:40:14,872 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 07:40:28,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 358 proven. 19 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2023-11-23 07:40:28,809 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:40:46,483 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 07:40:47,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:47,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693596312] [2023-11-23 07:40:47,239 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:47,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196497680] [2023-11-23 07:40:47,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196497680] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:40:47,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:40:47,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2023-11-23 07:40:47,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903960711] [2023-11-23 07:40:47,240 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 07:40:47,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-23 07:40:47,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:47,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-23 07:40:47,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1579, Unknown=11, NotChecked=0, Total=1722 [2023-11-23 07:40:47,242 INFO L87 Difference]: Start difference. First operand 580 states and 918 transitions. Second operand has 31 states, 25 states have (on average 4.24) internal successors, (106), 25 states have internal predecessors, (106), 11 states have call successors, (36), 5 states have call predecessors, (36), 9 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) [2023-11-23 07:40:51,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:41:04,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:41:07,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:41:09,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:41:10,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:41:13,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:41:15,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:41:17,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:41:19,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:41:25,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:41:27,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:41:29,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:41:35,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:41:39,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:41:41,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] Killed by 15