./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_up_harness_negated.i --full-output --preprocessor.use.memory.slicer false --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version abd6749d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_up_harness_negated.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 0a24c467ee4afd1f8fb2ad69778e17e53d871087d71da326bb40e3f8a46d1aa9 --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 09:03:11,682 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 09:03:11,755 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 09:03:11,762 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 09:03:11,763 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 09:03:11,787 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 09:03:11,788 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 09:03:11,788 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 09:03:11,789 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 09:03:11,792 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 09:03:11,792 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 09:03:11,792 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 09:03:11,793 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 09:03:11,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 09:03:11,794 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 09:03:11,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 09:03:11,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 09:03:11,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 09:03:11,795 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 09:03:11,795 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 09:03:11,796 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 09:03:11,796 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 09:03:11,796 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 09:03:11,796 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 09:03:11,797 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 09:03:11,797 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 09:03:11,797 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 09:03:11,798 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 09:03:11,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 09:03:11,798 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 09:03:11,799 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 09:03:11,799 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 09:03:11,799 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 09:03:11,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 09:03:11,800 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 09:03:11,800 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 09:03:11,800 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 09:03:11,800 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 09:03:11,800 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 09:03:11,801 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a24c467ee4afd1f8fb2ad69778e17e53d871087d71da326bb40e3f8a46d1aa9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-23 09:03:12,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 09:03:12,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 09:03:12,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 09:03:12,065 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 09:03:12,065 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 09:03:12,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_up_harness_negated.i [2023-11-23 09:03:13,198 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 09:03:13,607 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 09:03:13,608 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_up_harness_negated.i [2023-11-23 09:03:13,634 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb3555585/5218ac9cb41848729f1812b9b0565676/FLAG34757e32c [2023-11-23 09:03:13,650 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb3555585/5218ac9cb41848729f1812b9b0565676 [2023-11-23 09:03:13,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 09:03:13,654 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 09:03:13,655 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 09:03:13,656 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 09:03:13,659 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 09:03:13,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:03:13" (1/1) ... [2023-11-23 09:03:13,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6196d91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:03:13, skipping insertion in model container [2023-11-23 09:03:13,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:03:13" (1/1) ... [2023-11-23 09:03:13,735 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 09:03:13,967 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_up_harness_negated.i[4502,4515] [2023-11-23 09:03:13,976 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_up_harness_negated.i[4562,4575] [2023-11-23 09:03:14,779 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:14,784 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:14,785 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:14,787 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:14,790 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:14,805 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:14,806 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:14,807 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:14,808 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:14,809 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:14,809 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:14,810 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:14,810 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,195 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 09:03:15,196 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 09:03:15,196 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 09:03:15,197 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 09:03:15,199 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 09:03:15,200 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 09:03:15,201 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 09:03:15,201 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 09:03:15,210 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 09:03:15,211 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 09:03:15,305 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,306 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,309 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,312 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,365 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,366 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,366 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,366 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,368 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,368 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,369 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,369 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,369 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,370 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,370 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,370 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,371 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,374 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,374 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,374 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,374 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,380 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,381 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,388 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,388 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,388 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 09:03:15,431 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 09:03:15,441 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_up_harness_negated.i[4502,4515] [2023-11-23 09:03:15,442 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_up_harness_negated.i[4562,4575] [2023-11-23 09:03:15,470 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,470 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,471 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,471 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,472 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,481 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,481 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,482 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,482 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,483 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,484 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,484 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,484 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,528 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 09:03:15,529 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 09:03:15,529 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 09:03:15,530 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 09:03:15,531 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 09:03:15,531 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 09:03:15,531 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 09:03:15,531 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 09:03:15,532 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 09:03:15,532 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 09:03:15,574 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,574 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,576 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,580 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7744-7755] [2023-11-23 09:03:15,612 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,613 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,613 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,613 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,613 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,614 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,614 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,614 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,615 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,615 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,615 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,660 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,661 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,662 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,662 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,662 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,662 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,664 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,664 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,670 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,670 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,671 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:03:15,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 09:03:15,832 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:03:15,833 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:03:15,833 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:03:15,833 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:03:15,833 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:03:15,833 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:03:15,834 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:03:15,834 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:03:15,834 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:03:15,834 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:03:15,835 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:03:15,835 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:03:15,835 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:03:15,835 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:03:15,835 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:03:15,841 INFO L206 MainTranslator]: Completed translation [2023-11-23 09:03:15,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:03:15 WrapperNode [2023-11-23 09:03:15,842 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 09:03:15,844 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 09:03:15,844 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 09:03:15,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 09:03:15,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:03:15" (1/1) ... [2023-11-23 09:03:15,936 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:03:15" (1/1) ... [2023-11-23 09:03:16,017 INFO L138 Inliner]: procedures = 696, calls = 1888, calls flagged for inlining = 61, calls inlined = 14, statements flattened = 820 [2023-11-23 09:03:16,018 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 09:03:16,019 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 09:03:16,019 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 09:03:16,019 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 09:03:16,035 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:03:15" (1/1) ... [2023-11-23 09:03:16,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:03:15" (1/1) ... [2023-11-23 09:03:16,049 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:03:15" (1/1) ... [2023-11-23 09:03:16,050 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:03:15" (1/1) ... [2023-11-23 09:03:16,093 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:03:15" (1/1) ... [2023-11-23 09:03:16,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:03:15" (1/1) ... [2023-11-23 09:03:16,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:03:15" (1/1) ... [2023-11-23 09:03:16,124 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:03:15" (1/1) ... [2023-11-23 09:03:16,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 09:03:16,143 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 09:03:16,143 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 09:03:16,143 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 09:03:16,144 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:03:15" (1/1) ... [2023-11-23 09:03:16,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 09:03:16,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:16,223 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 09:03:16,294 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 09:03:16,331 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-23 09:03:16,331 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-23 09:03:16,331 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-23 09:03:16,331 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-23 09:03:16,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 09:03:16,332 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-23 09:03:16,332 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-23 09:03:16,332 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-23 09:03:16,332 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-23 09:03:16,332 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 09:03:16,332 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 09:03:16,332 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-23 09:03:16,332 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-23 09:03:16,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 09:03:16,333 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 09:03:16,333 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 09:03:16,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 09:03:16,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 09:03:16,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 09:03:16,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 09:03:16,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 09:03:16,333 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-23 09:03:16,334 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-23 09:03:16,334 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-23 09:03:16,334 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-23 09:03:16,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 09:03:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 09:03:16,335 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 09:03:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 09:03:16,335 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 09:03:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 09:03:16,335 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-23 09:03:16,336 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-23 09:03:16,336 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-23 09:03:16,336 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-23 09:03:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-23 09:03:16,338 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-23 09:03:16,339 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 09:03:16,339 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 09:03:16,339 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-23 09:03:16,339 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-23 09:03:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 09:03:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 09:03:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 09:03:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-23 09:03:16,340 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-23 09:03:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 09:03:16,345 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 09:03:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 09:03:16,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 09:03:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 09:03:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-23 09:03:16,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-23 09:03:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 09:03:16,346 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 09:03:16,346 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 09:03:16,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 09:03:16,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 09:03:16,642 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 09:03:16,645 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 09:03:17,349 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 09:03:17,434 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 09:03:17,434 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-23 09:03:17,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:03:17 BoogieIcfgContainer [2023-11-23 09:03:17,435 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 09:03:17,436 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 09:03:17,437 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 09:03:17,439 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 09:03:17,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:03:13" (1/3) ... [2023-11-23 09:03:17,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7df14c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:03:17, skipping insertion in model container [2023-11-23 09:03:17,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:03:15" (2/3) ... [2023-11-23 09:03:17,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7df14c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:03:17, skipping insertion in model container [2023-11-23 09:03:17,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:03:17" (3/3) ... [2023-11-23 09:03:17,442 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_up_harness_negated.i [2023-11-23 09:03:17,456 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 09:03:17,456 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 09:03:17,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 09:03:17,510 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;@37967ef5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 09:03:17,510 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 09:03:17,514 INFO L276 IsEmpty]: Start isEmpty. Operand has 279 states, 158 states have (on average 1.2911392405063291) internal successors, (204), 161 states have internal predecessors, (204), 95 states have call successors, (95), 23 states have call predecessors, (95), 23 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2023-11-23 09:03:17,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-23 09:03:17,524 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:17,525 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:03:17,525 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:17,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:17,530 INFO L85 PathProgramCache]: Analyzing trace with hash -832028116, now seen corresponding path program 1 times [2023-11-23 09:03:17,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:17,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204393290] [2023-11-23 09:03:17,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:17,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:18,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:03:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:18,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:03:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:18,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:03:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:18,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 09:03:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:18,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:03:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:18,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:03:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:18,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 09:03:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:18,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:03:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:18,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:03:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:18,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 09:03:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:18,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 09:03:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:18,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 09:03:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:18,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 09:03:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:18,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 09:03:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:18,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 09:03:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:18,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 09:03:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:18,365 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-11-23 09:03:18,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:18,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204393290] [2023-11-23 09:03:18,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204393290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:18,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:18,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 09:03:18,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081114725] [2023-11-23 09:03:18,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:18,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 09:03:18,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:18,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 09:03:18,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:03:18,410 INFO L87 Difference]: Start difference. First operand has 279 states, 158 states have (on average 1.2911392405063291) internal successors, (204), 161 states have internal predecessors, (204), 95 states have call successors, (95), 23 states have call predecessors, (95), 23 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 09:03:19,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:19,494 INFO L93 Difference]: Finished difference Result 638 states and 1043 transitions. [2023-11-23 09:03:19,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 09:03:19,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 95 [2023-11-23 09:03:19,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:19,522 INFO L225 Difference]: With dead ends: 638 [2023-11-23 09:03:19,522 INFO L226 Difference]: Without dead ends: 365 [2023-11-23 09:03:19,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:03:19,533 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 212 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:19,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 344 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 09:03:19,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2023-11-23 09:03:19,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 276. [2023-11-23 09:03:19,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 157 states have (on average 1.2420382165605095) internal successors, (195), 159 states have internal predecessors, (195), 95 states have call successors, (95), 23 states have call predecessors, (95), 22 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2023-11-23 09:03:19,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 383 transitions. [2023-11-23 09:03:19,628 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 383 transitions. Word has length 95 [2023-11-23 09:03:19,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:19,628 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 383 transitions. [2023-11-23 09:03:19,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 09:03:19,629 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 383 transitions. [2023-11-23 09:03:19,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-23 09:03:19,638 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:19,638 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:03:19,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 09:03:19,638 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:19,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:19,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1755171166, now seen corresponding path program 1 times [2023-11-23 09:03:19,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:19,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481016417] [2023-11-23 09:03:19,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:19,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:19,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:03:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:19,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:03:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:19,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:03:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:19,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 09:03:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:19,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:03:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:19,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:03:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:20,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 09:03:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:20,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:03:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:20,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:03:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:20,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 09:03:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:20,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 09:03:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:20,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 09:03:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:20,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 09:03:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:20,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 09:03:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:20,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 09:03:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:20,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 09:03:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:20,116 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-23 09:03:20,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:20,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481016417] [2023-11-23 09:03:20,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481016417] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 09:03:20,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240793595] [2023-11-23 09:03:20,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:20,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:20,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:20,119 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 09:03:20,136 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 09:03:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:20,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 2168 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 09:03:20,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:20,584 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-11-23 09:03:20,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:20,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240793595] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:20,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 09:03:20,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-11-23 09:03:20,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127926335] [2023-11-23 09:03:20,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:20,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 09:03:20,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:20,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 09:03:20,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:03:20,588 INFO L87 Difference]: Start difference. First operand 276 states and 383 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-23 09:03:20,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:20,896 INFO L93 Difference]: Finished difference Result 523 states and 731 transitions. [2023-11-23 09:03:20,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:03:20,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 95 [2023-11-23 09:03:20,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:20,900 INFO L225 Difference]: With dead ends: 523 [2023-11-23 09:03:20,901 INFO L226 Difference]: Without dead ends: 278 [2023-11-23 09:03:20,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 09:03:20,903 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 45 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:20,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1314 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 09:03:20,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2023-11-23 09:03:20,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2023-11-23 09:03:20,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 158 states have (on average 1.240506329113924) internal successors, (196), 161 states have internal predecessors, (196), 95 states have call successors, (95), 23 states have call predecessors, (95), 23 states have return successors, (97), 93 states have call predecessors, (97), 93 states have call successors, (97) [2023-11-23 09:03:20,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 388 transitions. [2023-11-23 09:03:20,929 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 388 transitions. Word has length 95 [2023-11-23 09:03:20,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:20,930 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 388 transitions. [2023-11-23 09:03:20,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-23 09:03:20,930 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 388 transitions. [2023-11-23 09:03:20,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-23 09:03:20,931 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:20,931 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:03:20,949 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 09:03:21,146 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 09:03:21,147 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:21,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:21,148 INFO L85 PathProgramCache]: Analyzing trace with hash 280756076, now seen corresponding path program 1 times [2023-11-23 09:03:21,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:21,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956125021] [2023-11-23 09:03:21,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:21,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:03:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:03:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:03:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 09:03:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:03:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:03:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 09:03:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:03:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:03:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 09:03:21,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 09:03:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 09:03:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 09:03:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 09:03:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 09:03:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 09:03:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 09:03:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,590 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-23 09:03:21,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:21,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956125021] [2023-11-23 09:03:21,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956125021] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 09:03:21,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995558942] [2023-11-23 09:03:21,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:21,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:21,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:21,592 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 09:03:21,608 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 09:03:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:21,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 2218 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 09:03:21,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:22,056 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-11-23 09:03:22,059 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:22,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995558942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:22,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 09:03:22,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-11-23 09:03:22,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069921829] [2023-11-23 09:03:22,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:22,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 09:03:22,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:22,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 09:03:22,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-11-23 09:03:22,064 INFO L87 Difference]: Start difference. First operand 278 states and 388 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-23 09:03:22,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:22,497 INFO L93 Difference]: Finished difference Result 546 states and 778 transitions. [2023-11-23 09:03:22,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 09:03:22,497 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 103 [2023-11-23 09:03:22,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:22,501 INFO L225 Difference]: With dead ends: 546 [2023-11-23 09:03:22,502 INFO L226 Difference]: Without dead ends: 299 [2023-11-23 09:03:22,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-11-23 09:03:22,505 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 96 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1884 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:22,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1884 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 09:03:22,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2023-11-23 09:03:22,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 297. [2023-11-23 09:03:22,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 174 states have (on average 1.2528735632183907) internal successors, (218), 177 states have internal predecessors, (218), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (110), 96 states have call predecessors, (110), 95 states have call successors, (110) [2023-11-23 09:03:22,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 425 transitions. [2023-11-23 09:03:22,530 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 425 transitions. Word has length 103 [2023-11-23 09:03:22,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:22,530 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 425 transitions. [2023-11-23 09:03:22,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-23 09:03:22,531 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 425 transitions. [2023-11-23 09:03:22,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-23 09:03:22,535 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:22,536 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:03:22,554 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 09:03:22,748 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 09:03:22,749 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:22,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:22,749 INFO L85 PathProgramCache]: Analyzing trace with hash -2109013165, now seen corresponding path program 1 times [2023-11-23 09:03:22,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:22,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715927625] [2023-11-23 09:03:22,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:22,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:22,800 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:22,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1516614555] [2023-11-23 09:03:22,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:22,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:22,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:22,802 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 09:03:22,820 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 09:03:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:23,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 2357 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 09:03:23,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:23,245 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-11-23 09:03:23,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:23,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:23,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715927625] [2023-11-23 09:03:23,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:23,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516614555] [2023-11-23 09:03:23,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516614555] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:23,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:23,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:03:23,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187223704] [2023-11-23 09:03:23,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:23,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:03:23,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:23,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:03:23,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:03:23,247 INFO L87 Difference]: Start difference. First operand 297 states and 425 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-23 09:03:23,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:23,639 INFO L93 Difference]: Finished difference Result 569 states and 822 transitions. [2023-11-23 09:03:23,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 09:03:23,640 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 116 [2023-11-23 09:03:23,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:23,642 INFO L225 Difference]: With dead ends: 569 [2023-11-23 09:03:23,642 INFO L226 Difference]: Without dead ends: 303 [2023-11-23 09:03:23,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 111 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 09:03:23,644 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 64 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:23,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 1608 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 09:03:23,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-11-23 09:03:23,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 297. [2023-11-23 09:03:23,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 174 states have (on average 1.2528735632183907) internal successors, (218), 177 states have internal predecessors, (218), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (110), 96 states have call predecessors, (110), 95 states have call successors, (110) [2023-11-23 09:03:23,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 425 transitions. [2023-11-23 09:03:23,659 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 425 transitions. Word has length 116 [2023-11-23 09:03:23,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:23,659 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 425 transitions. [2023-11-23 09:03:23,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-23 09:03:23,660 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 425 transitions. [2023-11-23 09:03:23,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-23 09:03:23,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:23,661 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:03:23,677 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 09:03:23,872 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 09:03:23,875 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:23,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:23,875 INFO L85 PathProgramCache]: Analyzing trace with hash 254613270, now seen corresponding path program 1 times [2023-11-23 09:03:23,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:23,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588067287] [2023-11-23 09:03:23,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:23,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:23,940 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:23,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [177328201] [2023-11-23 09:03:23,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:23,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:23,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:23,942 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 09:03:23,966 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 09:03:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:24,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 2429 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:03:24,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:24,419 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-23 09:03:24,419 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:24,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:24,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588067287] [2023-11-23 09:03:24,420 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:24,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177328201] [2023-11-23 09:03:24,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177328201] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:24,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:24,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 09:03:24,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832956529] [2023-11-23 09:03:24,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:24,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:03:24,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:24,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:03:24,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:03:24,422 INFO L87 Difference]: Start difference. First operand 297 states and 425 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-23 09:03:24,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:24,962 INFO L93 Difference]: Finished difference Result 579 states and 835 transitions. [2023-11-23 09:03:24,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:03:24,962 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 132 [2023-11-23 09:03:24,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:24,964 INFO L225 Difference]: With dead ends: 579 [2023-11-23 09:03:24,965 INFO L226 Difference]: Without dead ends: 313 [2023-11-23 09:03:24,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:03:24,966 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 124 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 2141 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:24,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 2141 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 09:03:24,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-11-23 09:03:24,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 297. [2023-11-23 09:03:24,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 174 states have (on average 1.2528735632183907) internal successors, (218), 177 states have internal predecessors, (218), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (110), 96 states have call predecessors, (110), 95 states have call successors, (110) [2023-11-23 09:03:24,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 425 transitions. [2023-11-23 09:03:24,978 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 425 transitions. Word has length 132 [2023-11-23 09:03:24,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:24,979 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 425 transitions. [2023-11-23 09:03:24,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-23 09:03:24,979 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 425 transitions. [2023-11-23 09:03:24,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-23 09:03:24,980 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:24,980 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:03:25,002 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 09:03:25,188 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 09:03:25,188 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:25,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:25,189 INFO L85 PathProgramCache]: Analyzing trace with hash 243861603, now seen corresponding path program 1 times [2023-11-23 09:03:25,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:25,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571494411] [2023-11-23 09:03:25,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:25,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:25,237 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:25,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1388266396] [2023-11-23 09:03:25,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:25,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:25,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:25,239 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 09:03:25,253 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 09:03:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:25,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 2568 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 09:03:25,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:25,745 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-23 09:03:25,745 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:25,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:25,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571494411] [2023-11-23 09:03:25,746 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:25,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388266396] [2023-11-23 09:03:25,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388266396] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:25,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:25,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 09:03:25,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689985862] [2023-11-23 09:03:25,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:25,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 09:03:25,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:25,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 09:03:25,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:03:25,748 INFO L87 Difference]: Start difference. First operand 297 states and 425 transitions. Second operand has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-23 09:03:26,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:26,089 INFO L93 Difference]: Finished difference Result 539 states and 779 transitions. [2023-11-23 09:03:26,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 09:03:26,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 145 [2023-11-23 09:03:26,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:26,092 INFO L225 Difference]: With dead ends: 539 [2023-11-23 09:03:26,092 INFO L226 Difference]: Without dead ends: 299 [2023-11-23 09:03:26,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:03:26,094 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 75 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:26,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1940 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 09:03:26,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2023-11-23 09:03:26,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2023-11-23 09:03:26,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 175 states have (on average 1.2514285714285713) internal successors, (219), 179 states have internal predecessors, (219), 97 states have call successors, (97), 23 states have call predecessors, (97), 25 states have return successors, (112), 96 states have call predecessors, (112), 95 states have call successors, (112) [2023-11-23 09:03:26,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 428 transitions. [2023-11-23 09:03:26,108 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 428 transitions. Word has length 145 [2023-11-23 09:03:26,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:26,109 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 428 transitions. [2023-11-23 09:03:26,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-23 09:03:26,110 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 428 transitions. [2023-11-23 09:03:26,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-23 09:03:26,112 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:26,113 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:26,142 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 09:03:26,326 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 09:03:26,327 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:26,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:26,327 INFO L85 PathProgramCache]: Analyzing trace with hash -666272257, now seen corresponding path program 1 times [2023-11-23 09:03:26,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:26,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415810630] [2023-11-23 09:03:26,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:26,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:26,375 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:26,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1961869772] [2023-11-23 09:03:26,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:26,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:26,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:26,377 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 09:03:26,404 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 09:03:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:26,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 2668 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:03:26,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:26,910 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-11-23 09:03:26,910 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:26,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:26,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415810630] [2023-11-23 09:03:26,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:26,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961869772] [2023-11-23 09:03:26,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961869772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:26,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:26,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 09:03:26,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817581427] [2023-11-23 09:03:26,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:26,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 09:03:26,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:26,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 09:03:26,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:03:26,914 INFO L87 Difference]: Start difference. First operand 299 states and 428 transitions. Second operand has 9 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2023-11-23 09:03:27,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:27,430 INFO L93 Difference]: Finished difference Result 557 states and 805 transitions. [2023-11-23 09:03:27,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:03:27,430 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) Word has length 161 [2023-11-23 09:03:27,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:27,432 INFO L225 Difference]: With dead ends: 557 [2023-11-23 09:03:27,433 INFO L226 Difference]: Without dead ends: 315 [2023-11-23 09:03:27,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:03:27,434 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 111 mSDsluCounter, 2223 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 2564 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:27,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 2564 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 09:03:27,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-23 09:03:27,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 313. [2023-11-23 09:03:27,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 188 states have (on average 1.2606382978723405) internal successors, (237), 191 states have internal predecessors, (237), 98 states have call successors, (98), 23 states have call predecessors, (98), 25 states have return successors, (113), 98 states have call predecessors, (113), 96 states have call successors, (113) [2023-11-23 09:03:27,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 448 transitions. [2023-11-23 09:03:27,446 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 448 transitions. Word has length 161 [2023-11-23 09:03:27,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:27,446 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 448 transitions. [2023-11-23 09:03:27,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2023-11-23 09:03:27,447 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 448 transitions. [2023-11-23 09:03:27,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-23 09:03:27,448 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:27,448 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:03:27,469 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 09:03:27,656 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 09:03:27,656 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:27,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:27,657 INFO L85 PathProgramCache]: Analyzing trace with hash -574429389, now seen corresponding path program 1 times [2023-11-23 09:03:27,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:27,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580742295] [2023-11-23 09:03:27,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:27,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:27,723 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:27,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1722106384] [2023-11-23 09:03:27,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:27,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:27,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:27,724 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 09:03:27,744 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 09:03:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:28,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 2946 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:03:28,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:28,290 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-11-23 09:03:28,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:28,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:28,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580742295] [2023-11-23 09:03:28,291 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:28,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722106384] [2023-11-23 09:03:28,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722106384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:28,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:28,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 09:03:28,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566014737] [2023-11-23 09:03:28,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:28,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:03:28,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:28,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:03:28,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:03:28,293 INFO L87 Difference]: Start difference. First operand 313 states and 448 transitions. Second operand has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-23 09:03:28,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:28,807 INFO L93 Difference]: Finished difference Result 575 states and 830 transitions. [2023-11-23 09:03:28,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:03:28,808 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 187 [2023-11-23 09:03:28,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:28,838 INFO L225 Difference]: With dead ends: 575 [2023-11-23 09:03:28,838 INFO L226 Difference]: Without dead ends: 319 [2023-11-23 09:03:28,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:03:28,840 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 94 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:28,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 2216 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 09:03:28,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-11-23 09:03:28,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 313. [2023-11-23 09:03:28,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 188 states have (on average 1.2606382978723405) internal successors, (237), 191 states have internal predecessors, (237), 98 states have call successors, (98), 23 states have call predecessors, (98), 25 states have return successors, (113), 98 states have call predecessors, (113), 96 states have call successors, (113) [2023-11-23 09:03:28,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 448 transitions. [2023-11-23 09:03:28,852 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 448 transitions. Word has length 187 [2023-11-23 09:03:28,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:28,852 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 448 transitions. [2023-11-23 09:03:28,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-23 09:03:28,853 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 448 transitions. [2023-11-23 09:03:28,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-11-23 09:03:28,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:28,855 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:03:28,876 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 09:03:29,071 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 09:03:29,072 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:29,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:29,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1767306771, now seen corresponding path program 1 times [2023-11-23 09:03:29,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:29,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853218172] [2023-11-23 09:03:29,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:29,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:29,144 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:29,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1012910049] [2023-11-23 09:03:29,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:29,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:29,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:29,146 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 09:03:29,168 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 09:03:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:29,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 3368 conjuncts, 74 conjunts are in the unsatisfiable core [2023-11-23 09:03:29,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:30,069 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 9 treesize of output 3 [2023-11-23 09:03:30,072 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 9 treesize of output 3 [2023-11-23 09:03:30,092 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2023-11-23 09:03:30,092 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:30,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:30,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853218172] [2023-11-23 09:03:30,092 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:30,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012910049] [2023-11-23 09:03:30,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012910049] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:30,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:30,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-23 09:03:30,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4100906] [2023-11-23 09:03:30,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:30,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 09:03:30,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:30,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 09:03:30,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-23 09:03:30,094 INFO L87 Difference]: Start difference. First operand 313 states and 448 transitions. Second operand has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 13 states have internal predecessors, (92), 5 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2023-11-23 09:03:31,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:31,284 INFO L93 Difference]: Finished difference Result 631 states and 924 transitions. [2023-11-23 09:03:31,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 09:03:31,285 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 13 states have internal predecessors, (92), 5 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 245 [2023-11-23 09:03:31,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:31,288 INFO L225 Difference]: With dead ends: 631 [2023-11-23 09:03:31,288 INFO L226 Difference]: Without dead ends: 349 [2023-11-23 09:03:31,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2023-11-23 09:03:31,292 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 91 mSDsluCounter, 2815 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 3153 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:31,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 3153 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 09:03:31,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-11-23 09:03:31,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 338. [2023-11-23 09:03:31,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 212 states have (on average 1.2735849056603774) internal successors, (270), 214 states have internal predecessors, (270), 98 states have call successors, (98), 23 states have call predecessors, (98), 26 states have return successors, (124), 100 states have call predecessors, (124), 96 states have call successors, (124) [2023-11-23 09:03:31,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 492 transitions. [2023-11-23 09:03:31,306 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 492 transitions. Word has length 245 [2023-11-23 09:03:31,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:31,307 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 492 transitions. [2023-11-23 09:03:31,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 13 states have internal predecessors, (92), 5 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2023-11-23 09:03:31,307 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 492 transitions. [2023-11-23 09:03:31,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-11-23 09:03:31,310 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:31,310 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 09:03:31,329 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 09:03:31,524 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 09:03:31,524 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:31,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:31,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1359548761, now seen corresponding path program 1 times [2023-11-23 09:03:31,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:31,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224381363] [2023-11-23 09:03:31,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:31,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:31,593 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:31,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1403608381] [2023-11-23 09:03:31,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:31,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:31,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:31,595 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 09:03:31,596 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 09:03:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:32,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 3353 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 09:03:32,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:32,199 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2023-11-23 09:03:32,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:32,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:32,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224381363] [2023-11-23 09:03:32,200 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:32,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403608381] [2023-11-23 09:03:32,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403608381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:32,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:32,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 09:03:32,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82892510] [2023-11-23 09:03:32,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:32,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 09:03:32,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:32,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 09:03:32,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:03:32,203 INFO L87 Difference]: Start difference. First operand 338 states and 492 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 09:03:32,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:32,425 INFO L93 Difference]: Finished difference Result 648 states and 976 transitions. [2023-11-23 09:03:32,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:03:32,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 245 [2023-11-23 09:03:32,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:32,427 INFO L225 Difference]: With dead ends: 648 [2023-11-23 09:03:32,427 INFO L226 Difference]: Without dead ends: 341 [2023-11-23 09:03:32,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 243 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 09:03:32,429 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 7 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:32,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1072 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 09:03:32,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-11-23 09:03:32,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 338. [2023-11-23 09:03:32,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 212 states have (on average 1.2688679245283019) internal successors, (269), 214 states have internal predecessors, (269), 98 states have call successors, (98), 23 states have call predecessors, (98), 26 states have return successors, (124), 100 states have call predecessors, (124), 96 states have call successors, (124) [2023-11-23 09:03:32,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 491 transitions. [2023-11-23 09:03:32,441 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 491 transitions. Word has length 245 [2023-11-23 09:03:32,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:32,441 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 491 transitions. [2023-11-23 09:03:32,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 09:03:32,441 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 491 transitions. [2023-11-23 09:03:32,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-23 09:03:32,443 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:32,443 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 09:03:32,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 09:03:32,660 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 09:03:32,660 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:32,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:32,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1059602177, now seen corresponding path program 1 times [2023-11-23 09:03:32,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:32,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385501366] [2023-11-23 09:03:32,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:32,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:32,746 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:32,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1786134185] [2023-11-23 09:03:32,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:32,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:32,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:32,747 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 09:03:32,776 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 09:03:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:33,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 3398 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:03:33,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:33,458 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2023-11-23 09:03:33,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:33,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:33,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385501366] [2023-11-23 09:03:33,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:33,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786134185] [2023-11-23 09:03:33,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786134185] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:33,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:33,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:03:33,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965258958] [2023-11-23 09:03:33,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:33,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:03:33,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:33,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:03:33,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:03:33,460 INFO L87 Difference]: Start difference. First operand 338 states and 491 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 09:03:34,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:34,033 INFO L93 Difference]: Finished difference Result 717 states and 1052 transitions. [2023-11-23 09:03:34,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 09:03:34,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 251 [2023-11-23 09:03:34,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:34,036 INFO L225 Difference]: With dead ends: 717 [2023-11-23 09:03:34,036 INFO L226 Difference]: Without dead ends: 410 [2023-11-23 09:03:34,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:03:34,038 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 21 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:34,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1661 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 09:03:34,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-11-23 09:03:34,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 358. [2023-11-23 09:03:34,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 232 states have (on average 1.2672413793103448) internal successors, (294), 234 states have internal predecessors, (294), 98 states have call successors, (98), 23 states have call predecessors, (98), 26 states have return successors, (124), 100 states have call predecessors, (124), 96 states have call successors, (124) [2023-11-23 09:03:34,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 516 transitions. [2023-11-23 09:03:34,052 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 516 transitions. Word has length 251 [2023-11-23 09:03:34,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:34,052 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 516 transitions. [2023-11-23 09:03:34,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 09:03:34,052 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 516 transitions. [2023-11-23 09:03:34,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-23 09:03:34,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:34,055 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 09:03:34,079 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 09:03:34,275 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 09:03:34,275 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:34,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:34,275 INFO L85 PathProgramCache]: Analyzing trace with hash 28180743, now seen corresponding path program 1 times [2023-11-23 09:03:34,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:34,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367266897] [2023-11-23 09:03:34,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:34,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:34,349 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:34,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1992096776] [2023-11-23 09:03:34,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:34,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:34,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:34,351 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 09:03:34,377 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 09:03:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:34,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 3389 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 09:03:34,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:34,998 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-11-23 09:03:34,998 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:34,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:34,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367266897] [2023-11-23 09:03:34,999 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:34,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992096776] [2023-11-23 09:03:34,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992096776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:34,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:34,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 09:03:34,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317875728] [2023-11-23 09:03:34,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:35,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 09:03:35,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:35,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 09:03:35,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:03:35,001 INFO L87 Difference]: Start difference. First operand 358 states and 516 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 09:03:35,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:35,185 INFO L93 Difference]: Finished difference Result 705 states and 1029 transitions. [2023-11-23 09:03:35,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:03:35,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 251 [2023-11-23 09:03:35,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:35,188 INFO L225 Difference]: With dead ends: 705 [2023-11-23 09:03:35,188 INFO L226 Difference]: Without dead ends: 378 [2023-11-23 09:03:35,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 248 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 09:03:35,190 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 3 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:35,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1064 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 09:03:35,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-11-23 09:03:35,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 368. [2023-11-23 09:03:35,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 242 states have (on average 1.256198347107438) internal successors, (304), 244 states have internal predecessors, (304), 98 states have call successors, (98), 23 states have call predecessors, (98), 26 states have return successors, (124), 100 states have call predecessors, (124), 96 states have call successors, (124) [2023-11-23 09:03:35,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 526 transitions. [2023-11-23 09:03:35,203 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 526 transitions. Word has length 251 [2023-11-23 09:03:35,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:35,203 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 526 transitions. [2023-11-23 09:03:35,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 09:03:35,204 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 526 transitions. [2023-11-23 09:03:35,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-11-23 09:03:35,207 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:35,207 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 09:03:35,223 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 09:03:35,420 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 09:03:35,420 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:35,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:35,421 INFO L85 PathProgramCache]: Analyzing trace with hash 481126515, now seen corresponding path program 1 times [2023-11-23 09:03:35,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:35,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451696143] [2023-11-23 09:03:35,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:35,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:35,476 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:35,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1890382067] [2023-11-23 09:03:35,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:35,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:35,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:35,478 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 09:03:35,480 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 09:03:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:36,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 3076 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 09:03:36,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:36,090 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-23 09:03:36,090 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:36,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:36,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451696143] [2023-11-23 09:03:36,090 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:36,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890382067] [2023-11-23 09:03:36,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890382067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:36,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:36,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 09:03:36,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997256914] [2023-11-23 09:03:36,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:36,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 09:03:36,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:36,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 09:03:36,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:03:36,092 INFO L87 Difference]: Start difference. First operand 368 states and 526 transitions. Second operand has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-23 09:03:36,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:36,748 INFO L93 Difference]: Finished difference Result 679 states and 976 transitions. [2023-11-23 09:03:36,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 09:03:36,748 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) Word has length 221 [2023-11-23 09:03:36,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:36,750 INFO L225 Difference]: With dead ends: 679 [2023-11-23 09:03:36,750 INFO L226 Difference]: Without dead ends: 368 [2023-11-23 09:03:36,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-11-23 09:03:36,752 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 154 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 2707 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:36,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 2707 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 09:03:36,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-11-23 09:03:36,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 346. [2023-11-23 09:03:36,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 222 states have (on average 1.2522522522522523) internal successors, (278), 224 states have internal predecessors, (278), 97 states have call successors, (97), 23 states have call predecessors, (97), 25 states have return successors, (119), 98 states have call predecessors, (119), 95 states have call successors, (119) [2023-11-23 09:03:36,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 494 transitions. [2023-11-23 09:03:36,764 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 494 transitions. Word has length 221 [2023-11-23 09:03:36,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:36,765 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 494 transitions. [2023-11-23 09:03:36,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-23 09:03:36,765 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 494 transitions. [2023-11-23 09:03:36,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-23 09:03:36,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:36,767 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 09:03:36,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-23 09:03:36,980 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 09:03:36,980 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:36,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:36,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1733784435, now seen corresponding path program 1 times [2023-11-23 09:03:36,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:36,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669096548] [2023-11-23 09:03:36,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:36,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:37,053 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:37,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1770959415] [2023-11-23 09:03:37,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:37,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:37,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:37,059 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 09:03:37,080 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 09:03:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:37,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 3374 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-23 09:03:37,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:37,834 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 11 treesize of output 5 [2023-11-23 09:03:37,842 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-11-23 09:03:37,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:37,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:37,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669096548] [2023-11-23 09:03:37,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:37,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770959415] [2023-11-23 09:03:37,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770959415] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:37,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:37,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 09:03:37,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644000854] [2023-11-23 09:03:37,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:37,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 09:03:37,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:37,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 09:03:37,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:03:37,845 INFO L87 Difference]: Start difference. First operand 346 states and 494 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 5 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2023-11-23 09:03:38,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:38,665 INFO L93 Difference]: Finished difference Result 698 states and 1018 transitions. [2023-11-23 09:03:38,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:03:38,665 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 5 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) Word has length 251 [2023-11-23 09:03:38,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:38,667 INFO L225 Difference]: With dead ends: 698 [2023-11-23 09:03:38,667 INFO L226 Difference]: Without dead ends: 375 [2023-11-23 09:03:38,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2023-11-23 09:03:38,669 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 79 mSDsluCounter, 2168 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 2511 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:38,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 2511 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 09:03:38,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-11-23 09:03:38,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 359. [2023-11-23 09:03:38,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 234 states have (on average 1.2435897435897436) internal successors, (291), 235 states have internal predecessors, (291), 97 states have call successors, (97), 23 states have call predecessors, (97), 26 states have return successors, (130), 100 states have call predecessors, (130), 95 states have call successors, (130) [2023-11-23 09:03:38,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 518 transitions. [2023-11-23 09:03:38,690 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 518 transitions. Word has length 251 [2023-11-23 09:03:38,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:38,690 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 518 transitions. [2023-11-23 09:03:38,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 5 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2023-11-23 09:03:38,690 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 518 transitions. [2023-11-23 09:03:38,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-23 09:03:38,692 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:38,692 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 09:03:38,720 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 09:03:38,905 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 09:03:38,905 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:38,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:38,906 INFO L85 PathProgramCache]: Analyzing trace with hash 2001049479, now seen corresponding path program 1 times [2023-11-23 09:03:38,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:38,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579139194] [2023-11-23 09:03:38,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:38,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:38,962 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:38,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [867473725] [2023-11-23 09:03:38,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:38,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:38,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:38,963 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 09:03:38,978 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 09:03:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:39,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 3383 conjuncts, 83 conjunts are in the unsatisfiable core [2023-11-23 09:03:39,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:39,911 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 61 treesize of output 37 [2023-11-23 09:03:40,141 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-23 09:03:40,142 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:40,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:40,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579139194] [2023-11-23 09:03:40,142 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:40,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867473725] [2023-11-23 09:03:40,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867473725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:40,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:40,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-23 09:03:40,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724018365] [2023-11-23 09:03:40,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:40,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 09:03:40,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:40,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 09:03:40,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-11-23 09:03:40,144 INFO L87 Difference]: Start difference. First operand 359 states and 518 transitions. Second operand has 14 states, 14 states have (on average 6.928571428571429) internal successors, (97), 14 states have internal predecessors, (97), 5 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2023-11-23 09:03:42,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:42,285 INFO L93 Difference]: Finished difference Result 703 states and 1026 transitions. [2023-11-23 09:03:42,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 09:03:42,286 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.928571428571429) internal successors, (97), 14 states have internal predecessors, (97), 5 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 251 [2023-11-23 09:03:42,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:42,288 INFO L225 Difference]: With dead ends: 703 [2023-11-23 09:03:42,288 INFO L226 Difference]: Without dead ends: 375 [2023-11-23 09:03:42,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2023-11-23 09:03:42,290 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 75 mSDsluCounter, 3073 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:42,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 3410 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-23 09:03:42,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-11-23 09:03:42,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 340. [2023-11-23 09:03:42,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 216 states have (on average 1.2453703703703705) internal successors, (269), 218 states have internal predecessors, (269), 97 states have call successors, (97), 23 states have call predecessors, (97), 25 states have return successors, (119), 98 states have call predecessors, (119), 95 states have call successors, (119) [2023-11-23 09:03:42,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 485 transitions. [2023-11-23 09:03:42,307 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 485 transitions. Word has length 251 [2023-11-23 09:03:42,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:42,307 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 485 transitions. [2023-11-23 09:03:42,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.928571428571429) internal successors, (97), 14 states have internal predecessors, (97), 5 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2023-11-23 09:03:42,308 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 485 transitions. [2023-11-23 09:03:42,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-23 09:03:42,309 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:42,310 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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, 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] [2023-11-23 09:03:42,346 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 09:03:42,530 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 09:03:42,531 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:42,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:42,532 INFO L85 PathProgramCache]: Analyzing trace with hash 876659783, now seen corresponding path program 1 times [2023-11-23 09:03:42,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:42,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343188789] [2023-11-23 09:03:42,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:42,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:42,604 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:42,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1331091422] [2023-11-23 09:03:42,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:42,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:42,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:42,605 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 09:03:42,624 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 09:03:49,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:49,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 3359 conjuncts, 154 conjunts are in the unsatisfiable core [2023-11-23 09:03:49,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:49,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2023-11-23 09:03:50,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-23 09:03:50,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 09:03:50,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-23 09:03:50,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-23 09:04:06,701 INFO L349 Elim1Store]: treesize reduction 147, result has 12.0 percent of original size [2023-11-23 09:04:06,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 174 treesize of output 297 [2023-11-23 09:04:07,390 INFO L349 Elim1Store]: treesize reduction 8, result has 97.8 percent of original size [2023-11-23 09:04:07,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 254 treesize of output 584 [2023-11-23 09:07:22,169 INFO L224 Elim1Store]: Index analysis took 106 ms Killed by 15