./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_pop_harness.i --full-output --preprocessor.use.memory.slicer true --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version abd6749d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_pop_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 07:35:28,806 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 07:35:28,841 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 07:35:28,844 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 07:35:28,844 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 07:35:28,858 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 07:35:28,858 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 07:35:28,859 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 07:35:28,859 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 07:35:28,860 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 07:35:28,860 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 07:35:28,860 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 07:35:28,861 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 07:35:28,861 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 07:35:28,861 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 07:35:28,861 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 07:35:28,862 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 07:35:28,862 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 07:35:28,862 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 07:35:28,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 07:35:28,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 07:35:28,870 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 07:35:28,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 07:35:28,870 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 07:35:28,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 07:35:28,871 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 07:35:28,871 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 07:35:28,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 07:35:28,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:35:28,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 07:35:28,873 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 07:35:28,873 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 07:35:28,873 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 07:35:28,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 07:35:28,874 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 07:35:28,874 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 07:35:28,874 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 07:35:28,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 07:35:28,875 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 07:35:28,875 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-23 07:35:29,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 07:35:29,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 07:35:29,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 07:35:29,155 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 07:35:29,155 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 07:35:29,156 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_pop_harness.i [2023-11-23 07:35:30,291 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 07:35:30,641 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 07:35:30,641 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_pop_harness.i [2023-11-23 07:35:30,669 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4f8ecc64/f93db2e5b8344fc7b0e93df48085b770/FLAG3ed282976 [2023-11-23 07:35:30,685 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4f8ecc64/f93db2e5b8344fc7b0e93df48085b770 [2023-11-23 07:35:30,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 07:35:30,691 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 07:35:30,694 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 07:35:30,694 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 07:35:30,697 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 07:35:30,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:35:30" (1/1) ... [2023-11-23 07:35:30,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f840a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:30, skipping insertion in model container [2023-11-23 07:35:30,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:35:30" (1/1) ... [2023-11-23 07:35:30,772 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 07:35:30,959 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_pop_harness.i[4496,4509] [2023-11-23 07:35:30,966 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_pop_harness.i[4556,4569] [2023-11-23 07:35:31,628 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:31,628 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:31,629 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:31,629 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:31,630 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:31,643 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:31,645 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:31,646 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:31,647 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:31,648 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:31,649 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:31,649 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:31,649 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:31,994 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:35:31,996 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:35:31,997 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:35:31,998 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:35:31,999 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:35:32,000 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:35:32,000 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:35:32,001 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:35:32,005 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:35:32,006 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:35:32,199 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,202 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,251 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,252 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,252 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,252 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,252 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,254 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,254 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,255 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,255 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,255 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,256 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,256 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,256 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,258 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,259 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,260 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,260 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,264 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,264 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,270 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,273 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,273 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,285 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:35:32,325 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 07:35:32,344 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_pop_harness.i[4496,4509] [2023-11-23 07:35:32,346 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_pop_harness.i[4556,4569] [2023-11-23 07:35:32,385 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,387 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,387 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,387 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,388 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,395 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,395 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,396 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,396 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,397 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,397 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,398 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,398 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,427 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:35:32,428 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:35:32,428 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:35:32,429 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:35:32,430 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:35:32,430 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:35:32,431 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:35:32,431 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:35:32,431 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:35:32,432 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:35:32,462 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,465 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7771-7782] [2023-11-23 07:35:32,485 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,485 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,486 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,486 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,486 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,486 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,487 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,487 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,487 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,487 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,487 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,488 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,488 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,488 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,488 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,489 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,489 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,490 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,490 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,495 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,496 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,496 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,503 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:35:32,654 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:32,655 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:32,655 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:32,655 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:32,655 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:32,656 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:32,656 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:32,656 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:32,656 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:32,656 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:32,657 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:32,657 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:32,657 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:32,657 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:32,657 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:32,663 INFO L206 MainTranslator]: Completed translation [2023-11-23 07:35:32,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:32 WrapperNode [2023-11-23 07:35:32,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 07:35:32,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 07:35:32,665 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 07:35:32,665 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 07:35:32,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:32" (1/1) ... [2023-11-23 07:35:32,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:32" (1/1) ... [2023-11-23 07:35:32,814 INFO L138 Inliner]: procedures = 696, calls = 1919, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1036 [2023-11-23 07:35:32,815 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 07:35:32,816 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 07:35:32,816 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 07:35:32,816 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 07:35:32,825 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:32" (1/1) ... [2023-11-23 07:35:32,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:32" (1/1) ... [2023-11-23 07:35:32,839 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:32" (1/1) ... [2023-11-23 07:35:32,929 INFO L188 MemorySlicer]: Split 382 memory accesses to 8 slices as follows [0, 2, 259, 15, 83, 17, 3, 3]. 68 percent of accesses are in the largest equivalence class. The 252 initializations are split as follows [0, 2, 242, 0, 0, 4, 1, 3]. The 30 writes are split as follows [0, 0, 8, 13, 5, 3, 1, 0]. [2023-11-23 07:35:32,929 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:32" (1/1) ... [2023-11-23 07:35:32,929 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:32" (1/1) ... [2023-11-23 07:35:32,975 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:32" (1/1) ... [2023-11-23 07:35:32,993 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:32" (1/1) ... [2023-11-23 07:35:33,002 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:32" (1/1) ... [2023-11-23 07:35:33,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:32" (1/1) ... [2023-11-23 07:35:33,017 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 07:35:33,022 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 07:35:33,023 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 07:35:33,023 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 07:35:33,023 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:32" (1/1) ... [2023-11-23 07:35:33,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:35:33,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:33,050 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 07:35:33,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 07:35:33,092 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-23 07:35:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-23 07:35:33,093 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-23 07:35:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-23 07:35:33,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 07:35:33,093 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-23 07:35:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-23 07:35:33,094 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-23 07:35:33,094 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-23 07:35:33,094 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 07:35:33,094 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 07:35:33,094 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-23 07:35:33,094 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-23 07:35:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-23 07:35:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-23 07:35:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-23 07:35:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-23 07:35:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-23 07:35:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-23 07:35:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-23 07:35:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-23 07:35:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 07:35:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 07:35:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 07:35:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 07:35:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 07:35:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 07:35:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 07:35:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 07:35:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 07:35:33,097 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 07:35:33,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 07:35:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 07:35:33,098 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2023-11-23 07:35:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2023-11-23 07:35:33,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 07:35:33,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 07:35:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 07:35:33,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 07:35:33,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 07:35:33,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 07:35:33,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 07:35:33,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 07:35:33,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 07:35:33,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-23 07:35:33,102 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-23 07:35:33,102 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-23 07:35:33,102 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-23 07:35:33,107 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-23 07:35:33,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 07:35:33,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 07:35:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 07:35:33,108 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 07:35:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 07:35:33,108 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 07:35:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-23 07:35:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-23 07:35:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-23 07:35:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-23 07:35:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-23 07:35:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-23 07:35:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-23 07:35:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-23 07:35:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-23 07:35:33,109 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-23 07:35:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-23 07:35:33,109 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-23 07:35:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-23 07:35:33,109 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-23 07:35:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-23 07:35:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-23 07:35:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-23 07:35:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-23 07:35:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-23 07:35:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-11-23 07:35:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-11-23 07:35:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2023-11-23 07:35:33,110 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-23 07:35:33,111 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-23 07:35:33,111 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-23 07:35:33,111 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-23 07:35:33,111 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-23 07:35:33,111 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-11-23 07:35:33,111 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-11-23 07:35:33,111 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2023-11-23 07:35:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 07:35:33,111 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 07:35:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-23 07:35:33,112 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-23 07:35:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-11-23 07:35:33,112 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-11-23 07:35:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 07:35:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 07:35:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 07:35:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 07:35:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 07:35:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 07:35:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 07:35:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 07:35:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-23 07:35:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 07:35:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 07:35:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 07:35:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 07:35:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 07:35:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 07:35:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 07:35:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-23 07:35:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-23 07:35:33,114 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-23 07:35:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 07:35:33,114 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 07:35:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 07:35:33,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 07:35:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 07:35:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 07:35:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 07:35:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 07:35:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 07:35:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 07:35:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 07:35:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 07:35:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-23 07:35:33,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-23 07:35:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 07:35:33,116 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 07:35:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 07:35:33,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 07:35:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 07:35:33,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 07:35:33,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 07:35:33,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 07:35:33,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 07:35:33,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 07:35:33,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 07:35:33,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 07:35:33,117 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2023-11-23 07:35:33,117 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2023-11-23 07:35:33,480 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 07:35:33,483 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 07:35:34,582 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 07:35:34,650 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 07:35:34,650 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-23 07:35:34,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:35:34 BoogieIcfgContainer [2023-11-23 07:35:34,651 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 07:35:34,652 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 07:35:34,652 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 07:35:34,655 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 07:35:34,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:35:30" (1/3) ... [2023-11-23 07:35:34,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688a4fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:35:34, skipping insertion in model container [2023-11-23 07:35:34,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:32" (2/3) ... [2023-11-23 07:35:34,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688a4fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:35:34, skipping insertion in model container [2023-11-23 07:35:34,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:35:34" (3/3) ... [2023-11-23 07:35:34,657 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness.i [2023-11-23 07:35:34,669 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 07:35:34,670 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 07:35:34,708 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 07:35:34,712 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;@1a62fc10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 07:35:34,713 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 07:35:34,717 INFO L276 IsEmpty]: Start isEmpty. Operand has 411 states, 226 states have (on average 1.2876106194690264) internal successors, (291), 229 states have internal predecessors, (291), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2023-11-23 07:35:34,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-23 07:35:34,729 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:34,729 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:35:34,730 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:34,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:34,734 INFO L85 PathProgramCache]: Analyzing trace with hash 717218886, now seen corresponding path program 1 times [2023-11-23 07:35:34,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:34,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784581906] [2023-11-23 07:35:34,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:34,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:35:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:35:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:35:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:35:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:35:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:35:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:35:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:35:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:35:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:35:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:35:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 07:35:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:35:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 07:35:35,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 07:35:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 07:35:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 07:35:35,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 07:35:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 07:35:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 07:35:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 07:35:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,699 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2023-11-23 07:35:35,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:35,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784581906] [2023-11-23 07:35:35,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784581906] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:35:35,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:35:35,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:35:35,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195520574] [2023-11-23 07:35:35,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:35:35,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:35:35,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:35,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:35:35,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:35:35,728 INFO L87 Difference]: Start difference. First operand has 411 states, 226 states have (on average 1.2876106194690264) internal successors, (291), 229 states have internal predecessors, (291), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 07:35:38,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:35:38,919 INFO L93 Difference]: Finished difference Result 989 states and 1724 transitions. [2023-11-23 07:35:38,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:35:38,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2023-11-23 07:35:38,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:35:38,952 INFO L225 Difference]: With dead ends: 989 [2023-11-23 07:35:38,952 INFO L226 Difference]: Without dead ends: 584 [2023-11-23 07:35:38,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:35:38,966 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 297 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:35:38,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 930 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-23 07:35:38,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-11-23 07:35:39,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 408. [2023-11-23 07:35:39,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 224 states have (on average 1.2544642857142858) internal successors, (281), 227 states have internal predecessors, (281), 156 states have call successors, (156), 27 states have call predecessors, (156), 26 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2023-11-23 07:35:39,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 591 transitions. [2023-11-23 07:35:39,130 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 591 transitions. Word has length 124 [2023-11-23 07:35:39,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:35:39,130 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 591 transitions. [2023-11-23 07:35:39,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 07:35:39,131 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 591 transitions. [2023-11-23 07:35:39,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-23 07:35:39,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:39,137 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:35:39,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 07:35:39,138 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:39,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:39,138 INFO L85 PathProgramCache]: Analyzing trace with hash -566564784, now seen corresponding path program 1 times [2023-11-23 07:35:39,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:39,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71041030] [2023-11-23 07:35:39,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:39,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:35:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:35:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:35:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:35:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:35:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:35:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:35:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:35:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:35:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:35:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:35:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 07:35:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:35:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 07:35:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 07:35:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 07:35:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 07:35:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 07:35:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 07:35:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 07:35:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 07:35:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,961 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-11-23 07:35:39,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:39,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71041030] [2023-11-23 07:35:39,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71041030] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:35:39,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341654380] [2023-11-23 07:35:39,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:39,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:39,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:39,964 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:35:40,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 07:35:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 2802 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 07:35:40,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:35:40,570 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-23 07:35:40,570 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:35:40,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341654380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:35:40,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:35:40,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-23 07:35:40,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469985762] [2023-11-23 07:35:40,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:35:40,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:35:40,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:40,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:35:40,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:35:40,573 INFO L87 Difference]: Start difference. First operand 408 states and 591 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 07:35:41,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:35:41,621 INFO L93 Difference]: Finished difference Result 787 states and 1156 transitions. [2023-11-23 07:35:41,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:35:41,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 124 [2023-11-23 07:35:41,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:35:41,627 INFO L225 Difference]: With dead ends: 787 [2023-11-23 07:35:41,627 INFO L226 Difference]: Without dead ends: 410 [2023-11-23 07:35:41,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:35:41,632 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 57 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 2049 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:35:41,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 2049 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 07:35:41,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-11-23 07:35:41,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2023-11-23 07:35:41,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 225 states have (on average 1.2533333333333334) internal successors, (282), 229 states have internal predecessors, (282), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (167), 154 states have call predecessors, (167), 154 states have call successors, (167) [2023-11-23 07:35:41,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 605 transitions. [2023-11-23 07:35:41,674 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 605 transitions. Word has length 124 [2023-11-23 07:35:41,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:35:41,676 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 605 transitions. [2023-11-23 07:35:41,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 07:35:41,676 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 605 transitions. [2023-11-23 07:35:41,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-23 07:35:41,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:41,681 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:35:41,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 07:35:41,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:41,895 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:41,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:41,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1061010733, now seen corresponding path program 1 times [2023-11-23 07:35:41,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:41,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845773126] [2023-11-23 07:35:41,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:41,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:35:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:35:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:35:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:35:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:35:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:35:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:35:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:35:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:35:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:35:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:35:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 07:35:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 07:35:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:35:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 07:35:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 07:35:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 07:35:42,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 07:35:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 07:35:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 07:35:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 07:35:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 07:35:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,878 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2023-11-23 07:35:42,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:42,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845773126] [2023-11-23 07:35:42,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845773126] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:35:42,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989184275] [2023-11-23 07:35:42,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:42,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:42,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:42,880 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:35:42,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 07:35:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:43,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 2908 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 07:35:43,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:35:43,501 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-23 07:35:43,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:35:43,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989184275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:35:43,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:35:43,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-11-23 07:35:43,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105685184] [2023-11-23 07:35:43,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:35:43,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:35:43,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:43,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:35:43,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:35:43,506 INFO L87 Difference]: Start difference. First operand 410 states and 605 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-23 07:35:45,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:35:45,103 INFO L93 Difference]: Finished difference Result 810 states and 1227 transitions. [2023-11-23 07:35:45,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:35:45,103 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 132 [2023-11-23 07:35:45,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:35:45,106 INFO L225 Difference]: With dead ends: 810 [2023-11-23 07:35:45,106 INFO L226 Difference]: Without dead ends: 431 [2023-11-23 07:35:45,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:35:45,109 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 108 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 2955 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:35:45,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 2955 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-23 07:35:45,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-11-23 07:35:45,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 429. [2023-11-23 07:35:45,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 241 states have (on average 1.2614107883817427) internal successors, (304), 245 states have internal predecessors, (304), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (186), 157 states have call predecessors, (186), 156 states have call successors, (186) [2023-11-23 07:35:45,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 648 transitions. [2023-11-23 07:35:45,132 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 648 transitions. Word has length 132 [2023-11-23 07:35:45,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:35:45,132 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 648 transitions. [2023-11-23 07:35:45,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-23 07:35:45,132 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 648 transitions. [2023-11-23 07:35:45,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-23 07:35:45,134 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:45,134 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:35:45,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 07:35:45,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-23 07:35:45,349 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:45,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:45,350 INFO L85 PathProgramCache]: Analyzing trace with hash -657206915, now seen corresponding path program 1 times [2023-11-23 07:35:45,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:45,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468996969] [2023-11-23 07:35:45,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:45,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:45,449 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:35:45,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735972814] [2023-11-23 07:35:45,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:45,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:45,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:45,450 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:35:45,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 07:35:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:46,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 3103 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 07:35:46,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:35:46,116 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-23 07:35:46,116 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:35:46,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:46,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468996969] [2023-11-23 07:35:46,117 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:35:46,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735972814] [2023-11-23 07:35:46,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735972814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:35:46,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:35:46,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:35:46,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37541848] [2023-11-23 07:35:46,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:35:46,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:35:46,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:46,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:35:46,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:35:46,119 INFO L87 Difference]: Start difference. First operand 429 states and 648 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-23 07:35:47,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:35:47,267 INFO L93 Difference]: Finished difference Result 833 states and 1286 transitions. [2023-11-23 07:35:47,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:35:47,268 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 145 [2023-11-23 07:35:47,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:35:47,271 INFO L225 Difference]: With dead ends: 833 [2023-11-23 07:35:47,271 INFO L226 Difference]: Without dead ends: 435 [2023-11-23 07:35:47,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:35:47,274 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 76 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 2526 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:35:47,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 2526 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 07:35:47,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2023-11-23 07:35:47,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 429. [2023-11-23 07:35:47,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 241 states have (on average 1.2614107883817427) internal successors, (304), 245 states have internal predecessors, (304), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (186), 157 states have call predecessors, (186), 156 states have call successors, (186) [2023-11-23 07:35:47,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 648 transitions. [2023-11-23 07:35:47,299 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 648 transitions. Word has length 145 [2023-11-23 07:35:47,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:35:47,300 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 648 transitions. [2023-11-23 07:35:47,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-23 07:35:47,300 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 648 transitions. [2023-11-23 07:35:47,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-23 07:35:47,302 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:47,302 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:35:47,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 07:35:47,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:47,519 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:47,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:47,519 INFO L85 PathProgramCache]: Analyzing trace with hash -881622771, now seen corresponding path program 1 times [2023-11-23 07:35:47,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:47,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750178370] [2023-11-23 07:35:47,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:47,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:47,632 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:35:47,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2708895] [2023-11-23 07:35:47,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:47,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:47,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:47,634 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:35:47,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 07:35:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:48,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 3226 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 07:35:48,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:35:48,322 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-23 07:35:48,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:35:48,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:48,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750178370] [2023-11-23 07:35:48,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:35:48,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2708895] [2023-11-23 07:35:48,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2708895] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:35:48,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:35:48,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:35:48,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247146636] [2023-11-23 07:35:48,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:35:48,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:35:48,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:48,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:35:48,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:35:48,325 INFO L87 Difference]: Start difference. First operand 429 states and 648 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2023-11-23 07:35:50,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:35:50,314 INFO L93 Difference]: Finished difference Result 843 states and 1290 transitions. [2023-11-23 07:35:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:35:50,314 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 161 [2023-11-23 07:35:50,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:35:50,317 INFO L225 Difference]: With dead ends: 843 [2023-11-23 07:35:50,317 INFO L226 Difference]: Without dead ends: 445 [2023-11-23 07:35:50,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:35:50,320 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 136 mSDsluCounter, 2882 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 3389 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-23 07:35:50,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 3389 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-23 07:35:50,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2023-11-23 07:35:50,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 429. [2023-11-23 07:35:50,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 241 states have (on average 1.2614107883817427) internal successors, (304), 245 states have internal predecessors, (304), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (186), 157 states have call predecessors, (186), 156 states have call successors, (186) [2023-11-23 07:35:50,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 648 transitions. [2023-11-23 07:35:50,340 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 648 transitions. Word has length 161 [2023-11-23 07:35:50,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:35:50,341 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 648 transitions. [2023-11-23 07:35:50,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2023-11-23 07:35:50,341 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 648 transitions. [2023-11-23 07:35:50,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-23 07:35:50,342 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:50,342 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:35:50,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 07:35:50,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:50,558 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:50,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:50,559 INFO L85 PathProgramCache]: Analyzing trace with hash 157047121, now seen corresponding path program 2 times [2023-11-23 07:35:50,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:50,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211781198] [2023-11-23 07:35:50,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:50,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:50,630 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:35:50,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1030003824] [2023-11-23 07:35:50,630 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:35:50,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:50,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:50,631 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:35:50,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 07:35:51,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:35:51,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:35:51,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 3421 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 07:35:51,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:35:51,425 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-11-23 07:35:51,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-11-23 07:35:51,544 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-23 07:35:51,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:35:51,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:51,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211781198] [2023-11-23 07:35:51,545 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:35:51,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030003824] [2023-11-23 07:35:51,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030003824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:35:51,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:35:51,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:35:51,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350743106] [2023-11-23 07:35:51,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:35:51,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:35:51,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:51,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:35:51,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:35:51,547 INFO L87 Difference]: Start difference. First operand 429 states and 648 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2023-11-23 07:35:52,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:35:52,436 INFO L93 Difference]: Finished difference Result 799 states and 1226 transitions. [2023-11-23 07:35:52,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:35:52,436 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 174 [2023-11-23 07:35:52,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:35:52,439 INFO L225 Difference]: With dead ends: 799 [2023-11-23 07:35:52,439 INFO L226 Difference]: Without dead ends: 431 [2023-11-23 07:35:52,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:35:52,441 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 62 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 2566 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 07:35:52,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 2566 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 07:35:52,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-11-23 07:35:52,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2023-11-23 07:35:52,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 242 states have (on average 1.2603305785123966) internal successors, (305), 247 states have internal predecessors, (305), 158 states have call successors, (158), 27 states have call predecessors, (158), 29 states have return successors, (197), 157 states have call predecessors, (197), 156 states have call successors, (197) [2023-11-23 07:35:52,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 660 transitions. [2023-11-23 07:35:52,461 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 660 transitions. Word has length 174 [2023-11-23 07:35:52,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:35:52,461 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 660 transitions. [2023-11-23 07:35:52,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2023-11-23 07:35:52,461 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 660 transitions. [2023-11-23 07:35:52,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-11-23 07:35:52,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:52,463 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:35:52,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 07:35:52,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:52,677 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:52,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:52,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1967003520, now seen corresponding path program 1 times [2023-11-23 07:35:52,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:52,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405586082] [2023-11-23 07:35:52,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:52,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:52,819 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:35:52,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [946941339] [2023-11-23 07:35:52,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:52,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:52,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:52,832 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:35:52,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 07:35:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:53,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 3722 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 07:35:53,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:35:53,625 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-11-23 07:35:53,626 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:35:53,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:53,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405586082] [2023-11-23 07:35:53,626 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:35:53,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946941339] [2023-11-23 07:35:53,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946941339] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:35:53,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:35:53,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 07:35:53,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885919813] [2023-11-23 07:35:53,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:35:53,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:35:53,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:53,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:35:53,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:35:53,629 INFO L87 Difference]: Start difference. First operand 431 states and 660 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-23 07:35:54,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:35:54,894 INFO L93 Difference]: Finished difference Result 804 states and 1251 transitions. [2023-11-23 07:35:54,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:35:54,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) Word has length 195 [2023-11-23 07:35:54,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:35:54,897 INFO L225 Difference]: With dead ends: 804 [2023-11-23 07:35:54,897 INFO L226 Difference]: Without dead ends: 434 [2023-11-23 07:35:54,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:35:54,900 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 81 mSDsluCounter, 2506 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 3035 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:35:54,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 3035 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-23 07:35:54,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-11-23 07:35:54,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 432. [2023-11-23 07:35:54,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 243 states have (on average 1.2592592592592593) internal successors, (306), 248 states have internal predecessors, (306), 158 states have call successors, (158), 27 states have call predecessors, (158), 29 states have return successors, (197), 157 states have call predecessors, (197), 156 states have call successors, (197) [2023-11-23 07:35:54,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 661 transitions. [2023-11-23 07:35:54,919 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 661 transitions. Word has length 195 [2023-11-23 07:35:54,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:35:54,920 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 661 transitions. [2023-11-23 07:35:54,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-23 07:35:54,920 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 661 transitions. [2023-11-23 07:35:54,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-11-23 07:35:54,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:54,921 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:35:54,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 07:35:55,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:55,138 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:55,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:55,138 INFO L85 PathProgramCache]: Analyzing trace with hash -2092286928, now seen corresponding path program 1 times [2023-11-23 07:35:55,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:55,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27263957] [2023-11-23 07:35:55,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:55,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:55,240 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:35:55,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1598156948] [2023-11-23 07:35:55,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:55,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:55,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:55,242 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:35:55,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 07:35:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:56,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 4040 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 07:35:56,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:35:56,152 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2023-11-23 07:35:56,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:35:56,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:56,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27263957] [2023-11-23 07:35:56,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:35:56,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598156948] [2023-11-23 07:35:56,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598156948] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:35:56,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:35:56,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:35:56,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555447698] [2023-11-23 07:35:56,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:35:56,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:35:56,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:56,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:35:56,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:35:56,155 INFO L87 Difference]: Start difference. First operand 432 states and 661 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (25), 3 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 07:35:58,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:35:58,073 INFO L93 Difference]: Finished difference Result 808 states and 1247 transitions. [2023-11-23 07:35:58,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:35:58,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (25), 3 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 224 [2023-11-23 07:35:58,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:35:58,077 INFO L225 Difference]: With dead ends: 808 [2023-11-23 07:35:58,077 INFO L226 Difference]: Without dead ends: 443 [2023-11-23 07:35:58,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:35:58,080 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 57 mSDsluCounter, 3056 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3583 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-23 07:35:58,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 3583 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-23 07:35:58,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-11-23 07:35:58,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2023-11-23 07:35:58,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 248 states have (on average 1.2580645161290323) internal successors, (312), 253 states have internal predecessors, (312), 163 states have call successors, (163), 28 states have call predecessors, (163), 30 states have return successors, (202), 162 states have call predecessors, (202), 161 states have call successors, (202) [2023-11-23 07:35:58,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 677 transitions. [2023-11-23 07:35:58,102 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 677 transitions. Word has length 224 [2023-11-23 07:35:58,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:35:58,102 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 677 transitions. [2023-11-23 07:35:58,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (25), 3 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 07:35:58,102 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 677 transitions. [2023-11-23 07:35:58,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2023-11-23 07:35:58,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:58,105 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:35:58,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 07:35:58,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:58,316 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:58,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:58,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1055739830, now seen corresponding path program 2 times [2023-11-23 07:35:58,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:58,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791213667] [2023-11-23 07:35:58,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:58,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:58,432 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:35:58,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033647470] [2023-11-23 07:35:58,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:35:58,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:58,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:58,434 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:35:58,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 07:35:59,308 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:35:59,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:35:59,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 4235 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 07:35:59,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:35:59,413 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 218 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-23 07:35:59,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:35:59,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:59,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791213667] [2023-11-23 07:35:59,414 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:35:59,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033647470] [2023-11-23 07:35:59,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033647470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:35:59,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:35:59,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 07:35:59,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686409523] [2023-11-23 07:35:59,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:35:59,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:35:59,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:59,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:35:59,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:35:59,419 INFO L87 Difference]: Start difference. First operand 443 states and 677 transitions. Second operand has 9 states, 8 states have (on average 12.5) internal successors, (100), 9 states have internal predecessors, (100), 6 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 6 states have call successors, (27) [2023-11-23 07:36:01,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:01,530 INFO L93 Difference]: Finished difference Result 825 states and 1270 transitions. [2023-11-23 07:36:01,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:36:01,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 9 states have internal predecessors, (100), 6 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 6 states have call successors, (27) Word has length 237 [2023-11-23 07:36:01,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:01,534 INFO L225 Difference]: With dead ends: 825 [2023-11-23 07:36:01,534 INFO L226 Difference]: Without dead ends: 443 [2023-11-23 07:36:01,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:36:01,538 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 141 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 3873 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:01,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 3873 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-23 07:36:01,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-11-23 07:36:01,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 440. [2023-11-23 07:36:01,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 246 states have (on average 1.2601626016260163) internal successors, (310), 250 states have internal predecessors, (310), 163 states have call successors, (163), 28 states have call predecessors, (163), 29 states have return successors, (189), 162 states have call predecessors, (189), 161 states have call successors, (189) [2023-11-23 07:36:01,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 662 transitions. [2023-11-23 07:36:01,570 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 662 transitions. Word has length 237 [2023-11-23 07:36:01,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:01,573 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 662 transitions. [2023-11-23 07:36:01,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 9 states have internal predecessors, (100), 6 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 6 states have call successors, (27) [2023-11-23 07:36:01,574 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 662 transitions. [2023-11-23 07:36:01,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-23 07:36:01,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:01,578 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:36:01,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-23 07:36:01,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-23 07:36:01,808 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:01,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:01,809 INFO L85 PathProgramCache]: Analyzing trace with hash 656492938, now seen corresponding path program 1 times [2023-11-23 07:36:01,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:01,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252559997] [2023-11-23 07:36:01,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:01,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:01,900 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:01,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [15821718] [2023-11-23 07:36:01,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:01,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:01,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:01,916 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:36:01,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 07:36:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:02,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 4430 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-23 07:36:02,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:02,909 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-23 07:36:02,909 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:02,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:02,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252559997] [2023-11-23 07:36:02,909 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:02,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15821718] [2023-11-23 07:36:02,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15821718] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:02,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:02,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:36:02,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142712293] [2023-11-23 07:36:02,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:02,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:36:02,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:02,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:36:02,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:36:02,912 INFO L87 Difference]: Start difference. First operand 440 states and 662 transitions. Second operand has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-23 07:36:04,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:04,619 INFO L93 Difference]: Finished difference Result 858 states and 1305 transitions. [2023-11-23 07:36:04,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:36:04,620 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) Word has length 250 [2023-11-23 07:36:04,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:04,624 INFO L225 Difference]: With dead ends: 858 [2023-11-23 07:36:04,624 INFO L226 Difference]: Without dead ends: 482 [2023-11-23 07:36:04,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:36:04,626 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 36 mSDsluCounter, 3474 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 4058 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:04,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 4058 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-23 07:36:04,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2023-11-23 07:36:04,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 459. [2023-11-23 07:36:04,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 259 states have (on average 1.2625482625482625) internal successors, (327), 263 states have internal predecessors, (327), 168 states have call successors, (168), 28 states have call predecessors, (168), 30 states have return successors, (199), 168 states have call predecessors, (199), 166 states have call successors, (199) [2023-11-23 07:36:04,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 694 transitions. [2023-11-23 07:36:04,649 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 694 transitions. Word has length 250 [2023-11-23 07:36:04,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:04,650 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 694 transitions. [2023-11-23 07:36:04,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-23 07:36:04,650 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 694 transitions. [2023-11-23 07:36:04,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-23 07:36:04,652 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:04,652 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:36:04,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 07:36:04,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 07:36:04,872 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:04,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:04,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1335765192, now seen corresponding path program 1 times [2023-11-23 07:36:04,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:04,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952486667] [2023-11-23 07:36:04,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:04,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:04,961 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:04,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [489187067] [2023-11-23 07:36:04,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:04,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:04,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:04,962 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:36:04,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 07:36:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:05,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 4427 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 07:36:05,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:05,996 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2023-11-23 07:36:05,996 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:05,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:05,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952486667] [2023-11-23 07:36:05,996 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:05,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489187067] [2023-11-23 07:36:05,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489187067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:05,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:05,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 07:36:05,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804828324] [2023-11-23 07:36:05,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:05,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:36:05,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:05,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:36:05,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:36:06,000 INFO L87 Difference]: Start difference. First operand 459 states and 694 transitions. Second operand has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-23 07:36:07,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:07,688 INFO L93 Difference]: Finished difference Result 864 states and 1313 transitions. [2023-11-23 07:36:07,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:36:07,688 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 250 [2023-11-23 07:36:07,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:07,691 INFO L225 Difference]: With dead ends: 864 [2023-11-23 07:36:07,691 INFO L226 Difference]: Without dead ends: 482 [2023-11-23 07:36:07,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:36:07,694 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 28 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3423 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:07,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3423 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-23 07:36:07,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2023-11-23 07:36:07,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 459. [2023-11-23 07:36:07,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 259 states have (on average 1.2586872586872586) internal successors, (326), 263 states have internal predecessors, (326), 168 states have call successors, (168), 28 states have call predecessors, (168), 30 states have return successors, (199), 168 states have call predecessors, (199), 166 states have call successors, (199) [2023-11-23 07:36:07,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 693 transitions. [2023-11-23 07:36:07,717 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 693 transitions. Word has length 250 [2023-11-23 07:36:07,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:07,717 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 693 transitions. [2023-11-23 07:36:07,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-23 07:36:07,718 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 693 transitions. [2023-11-23 07:36:07,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-23 07:36:07,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:07,719 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:36:07,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 07:36:07,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 07:36:07,933 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:07,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:07,933 INFO L85 PathProgramCache]: Analyzing trace with hash 2010925318, now seen corresponding path program 1 times [2023-11-23 07:36:07,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:07,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832062632] [2023-11-23 07:36:07,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:07,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:08,018 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:08,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1536684175] [2023-11-23 07:36:08,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:08,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:08,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:08,020 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:36:08,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 07:36:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:09,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 4424 conjuncts, 75 conjunts are in the unsatisfiable core [2023-11-23 07:36:09,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:09,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:36:09,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:36:09,544 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-11-23 07:36:09,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:09,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:09,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832062632] [2023-11-23 07:36:09,545 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:09,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536684175] [2023-11-23 07:36:09,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536684175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:09,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:09,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-23 07:36:09,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017791882] [2023-11-23 07:36:09,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:09,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 07:36:09,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:09,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 07:36:09,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:36:09,546 INFO L87 Difference]: Start difference. First operand 459 states and 693 transitions. Second operand has 14 states, 14 states have (on average 7.285714285714286) internal successors, (102), 14 states have internal predecessors, (102), 7 states have call successors, (30), 3 states have call predecessors, (30), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2023-11-23 07:36:15,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:15,844 INFO L93 Difference]: Finished difference Result 978 states and 1551 transitions. [2023-11-23 07:36:15,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 07:36:15,845 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.285714285714286) internal successors, (102), 14 states have internal predecessors, (102), 7 states have call successors, (30), 3 states have call predecessors, (30), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) Word has length 250 [2023-11-23 07:36:15,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:15,847 INFO L225 Difference]: With dead ends: 978 [2023-11-23 07:36:15,847 INFO L226 Difference]: Without dead ends: 550 [2023-11-23 07:36:15,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2023-11-23 07:36:15,850 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 299 mSDsluCounter, 2146 mSDsCounter, 0 mSdLazyCounter, 4612 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 4832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 4612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:15,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 2519 Invalid, 4832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 4612 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-11-23 07:36:15,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-11-23 07:36:15,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 484. [2023-11-23 07:36:15,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 283 states have (on average 1.2685512367491165) internal successors, (359), 286 states have internal predecessors, (359), 168 states have call successors, (168), 28 states have call predecessors, (168), 31 states have return successors, (218), 170 states have call predecessors, (218), 166 states have call successors, (218) [2023-11-23 07:36:15,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 745 transitions. [2023-11-23 07:36:15,877 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 745 transitions. Word has length 250 [2023-11-23 07:36:15,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:15,877 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 745 transitions. [2023-11-23 07:36:15,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.285714285714286) internal successors, (102), 14 states have internal predecessors, (102), 7 states have call successors, (30), 3 states have call predecessors, (30), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2023-11-23 07:36:15,878 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 745 transitions. [2023-11-23 07:36:15,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-23 07:36:15,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:15,879 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:36:15,902 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-23 07:36:16,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 07:36:16,092 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:16,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:16,093 INFO L85 PathProgramCache]: Analyzing trace with hash -391494330, now seen corresponding path program 1 times [2023-11-23 07:36:16,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:16,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008048722] [2023-11-23 07:36:16,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:16,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:16,174 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:16,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1468113343] [2023-11-23 07:36:16,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:16,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:16,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:16,176 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:36:16,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 07:36:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:17,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 4414 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 07:36:17,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:17,143 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2023-11-23 07:36:17,144 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:17,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:17,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008048722] [2023-11-23 07:36:17,144 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:17,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468113343] [2023-11-23 07:36:17,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468113343] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:17,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:17,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:36:17,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433868986] [2023-11-23 07:36:17,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:17,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:36:17,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:17,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:36:17,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:36:17,147 INFO L87 Difference]: Start difference. First operand 484 states and 745 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-23 07:36:17,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:17,360 INFO L93 Difference]: Finished difference Result 940 states and 1521 transitions. [2023-11-23 07:36:17,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:36:17,360 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 250 [2023-11-23 07:36:17,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:17,363 INFO L225 Difference]: With dead ends: 940 [2023-11-23 07:36:17,363 INFO L226 Difference]: Without dead ends: 487 [2023-11-23 07:36:17,366 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 07:36:17,367 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 7 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:17,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1693 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:36:17,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2023-11-23 07:36:17,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 484. [2023-11-23 07:36:17,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 283 states have (on average 1.265017667844523) internal successors, (358), 286 states have internal predecessors, (358), 168 states have call successors, (168), 28 states have call predecessors, (168), 31 states have return successors, (218), 170 states have call predecessors, (218), 166 states have call successors, (218) [2023-11-23 07:36:17,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 744 transitions. [2023-11-23 07:36:17,392 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 744 transitions. Word has length 250 [2023-11-23 07:36:17,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:17,393 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 744 transitions. [2023-11-23 07:36:17,393 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-23 07:36:17,393 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 744 transitions. [2023-11-23 07:36:17,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-11-23 07:36:17,394 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:17,394 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:36:17,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 07:36:17,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 07:36:17,614 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:17,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:17,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1488633722, now seen corresponding path program 1 times [2023-11-23 07:36:17,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:17,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558811417] [2023-11-23 07:36:17,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:17,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:17,694 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:17,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1861634792] [2023-11-23 07:36:17,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:17,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:17,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:17,695 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:36:17,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 07:36:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:18,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 4444 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 07:36:18,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:18,887 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-23 07:36:18,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:18,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:18,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558811417] [2023-11-23 07:36:18,888 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:18,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861634792] [2023-11-23 07:36:18,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861634792] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:18,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:18,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:36:18,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432032925] [2023-11-23 07:36:18,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:18,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:36:18,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:18,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:36:18,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:36:18,890 INFO L87 Difference]: Start difference. First operand 484 states and 744 transitions. Second operand has 5 states, 4 states have (on average 26.5) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2023-11-23 07:36:19,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:19,382 INFO L93 Difference]: Finished difference Result 891 states and 1379 transitions. [2023-11-23 07:36:19,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:36:19,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 26.5) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) Word has length 254 [2023-11-23 07:36:19,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:19,386 INFO L225 Difference]: With dead ends: 891 [2023-11-23 07:36:19,387 INFO L226 Difference]: Without dead ends: 467 [2023-11-23 07:36:19,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:36:19,389 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 2 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:19,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2040 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 07:36:19,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-11-23 07:36:19,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2023-11-23 07:36:19,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 271 states have (on average 1.2619926199261993) internal successors, (342), 275 states have internal predecessors, (342), 163 states have call successors, (163), 28 states have call predecessors, (163), 31 states have return successors, (210), 164 states have call predecessors, (210), 161 states have call successors, (210) [2023-11-23 07:36:19,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 715 transitions. [2023-11-23 07:36:19,413 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 715 transitions. Word has length 254 [2023-11-23 07:36:19,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:19,413 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 715 transitions. [2023-11-23 07:36:19,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 26.5) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2023-11-23 07:36:19,414 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 715 transitions. [2023-11-23 07:36:19,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-23 07:36:19,415 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:19,415 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:36:19,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 07:36:19,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 07:36:19,638 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:19,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:19,638 INFO L85 PathProgramCache]: Analyzing trace with hash 490737025, now seen corresponding path program 1 times [2023-11-23 07:36:19,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:19,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479090991] [2023-11-23 07:36:19,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:19,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:19,735 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:19,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [624105975] [2023-11-23 07:36:19,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:19,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:19,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:19,737 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:36:19,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 07:36:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:22,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 4484 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 07:36:22,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:22,170 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-11-23 07:36:22,170 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:22,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:22,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479090991] [2023-11-23 07:36:22,171 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:22,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624105975] [2023-11-23 07:36:22,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624105975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:22,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:22,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:36:22,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930724940] [2023-11-23 07:36:22,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:22,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:36:22,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:22,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:36:22,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:36:22,173 INFO L87 Difference]: Start difference. First operand 467 states and 715 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-23 07:36:23,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:23,003 INFO L93 Difference]: Finished difference Result 910 states and 1482 transitions. [2023-11-23 07:36:23,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:36:23,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 264 [2023-11-23 07:36:23,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:23,007 INFO L225 Difference]: With dead ends: 910 [2023-11-23 07:36:23,007 INFO L226 Difference]: Without dead ends: 474 [2023-11-23 07:36:23,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:36:23,010 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 15 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:23,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2182 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 07:36:23,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2023-11-23 07:36:23,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 468. [2023-11-23 07:36:23,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 272 states have (on average 1.2610294117647058) internal successors, (343), 276 states have internal predecessors, (343), 163 states have call successors, (163), 28 states have call predecessors, (163), 31 states have return successors, (210), 164 states have call predecessors, (210), 161 states have call successors, (210) [2023-11-23 07:36:23,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 716 transitions. [2023-11-23 07:36:23,032 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 716 transitions. Word has length 264 [2023-11-23 07:36:23,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:23,032 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 716 transitions. [2023-11-23 07:36:23,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-23 07:36:23,033 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 716 transitions. [2023-11-23 07:36:23,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-23 07:36:23,034 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:23,034 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:36:23,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 07:36:23,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:23,260 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:23,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:23,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1251967295, now seen corresponding path program 1 times [2023-11-23 07:36:23,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:23,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946768991] [2023-11-23 07:36:23,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:23,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:23,385 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:23,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2086232764] [2023-11-23 07:36:23,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:23,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:23,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:23,408 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:36:23,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 07:36:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:26,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 4474 conjuncts, 75 conjunts are in the unsatisfiable core [2023-11-23 07:36:26,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:26,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:36:26,394 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-23 07:36:26,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:26,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:26,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946768991] [2023-11-23 07:36:26,394 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:26,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086232764] [2023-11-23 07:36:26,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086232764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:26,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:26,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-23 07:36:26,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060878826] [2023-11-23 07:36:26,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:26,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 07:36:26,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:26,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 07:36:26,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:36:26,396 INFO L87 Difference]: Start difference. First operand 468 states and 716 transitions. Second operand has 13 states, 13 states have (on average 8.692307692307692) internal successors, (113), 13 states have internal predecessors, (113), 7 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2023-11-23 07:36:31,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:31,936 INFO L93 Difference]: Finished difference Result 996 states and 1596 transitions. [2023-11-23 07:36:31,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 07:36:31,937 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.692307692307692) internal successors, (113), 13 states have internal predecessors, (113), 7 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) Word has length 264 [2023-11-23 07:36:31,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:31,941 INFO L225 Difference]: With dead ends: 996 [2023-11-23 07:36:31,941 INFO L226 Difference]: Without dead ends: 559 [2023-11-23 07:36:31,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2023-11-23 07:36:31,944 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 289 mSDsluCounter, 1649 mSDsCounter, 0 mSdLazyCounter, 3909 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 4127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 3909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:31,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 2011 Invalid, 4127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 3909 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-23 07:36:31,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-11-23 07:36:31,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 488. [2023-11-23 07:36:31,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 291 states have (on average 1.2714776632302405) internal successors, (370), 294 states have internal predecessors, (370), 163 states have call successors, (163), 28 states have call predecessors, (163), 32 states have return successors, (229), 166 states have call predecessors, (229), 161 states have call successors, (229) [2023-11-23 07:36:32,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 762 transitions. [2023-11-23 07:36:32,024 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 762 transitions. Word has length 264 [2023-11-23 07:36:32,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:32,024 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 762 transitions. [2023-11-23 07:36:32,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.692307692307692) internal successors, (113), 13 states have internal predecessors, (113), 7 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2023-11-23 07:36:32,024 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 762 transitions. [2023-11-23 07:36:32,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-23 07:36:32,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:32,026 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:36:32,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-23 07:36:32,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-23 07:36:32,226 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:32,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:32,228 INFO L85 PathProgramCache]: Analyzing trace with hash 800116737, now seen corresponding path program 1 times [2023-11-23 07:36:32,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:32,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801786740] [2023-11-23 07:36:32,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:32,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:32,303 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:32,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [521825941] [2023-11-23 07:36:32,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:32,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:32,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:32,305 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:36:32,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 07:36:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:33,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 4484 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-23 07:36:33,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:33,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:36:33,881 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-23 07:36:33,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:33,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:33,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801786740] [2023-11-23 07:36:33,881 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:33,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521825941] [2023-11-23 07:36:33,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521825941] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:33,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:33,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 07:36:33,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873113349] [2023-11-23 07:36:33,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:33,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 07:36:33,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:33,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 07:36:33,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:36:33,883 INFO L87 Difference]: Start difference. First operand 488 states and 762 transitions. Second operand has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 7 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2023-11-23 07:36:37,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:37,710 INFO L93 Difference]: Finished difference Result 1016 states and 1640 transitions. [2023-11-23 07:36:37,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 07:36:37,710 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 7 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) Word has length 264 [2023-11-23 07:36:37,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:37,754 INFO L225 Difference]: With dead ends: 1016 [2023-11-23 07:36:37,754 INFO L226 Difference]: Without dead ends: 559 [2023-11-23 07:36:37,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2023-11-23 07:36:37,757 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 285 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 3432 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 3648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 3432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:37,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1819 Invalid, 3648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 3432 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-23 07:36:37,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-11-23 07:36:37,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 488. [2023-11-23 07:36:37,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 291 states have (on average 1.2646048109965635) internal successors, (368), 294 states have internal predecessors, (368), 163 states have call successors, (163), 28 states have call predecessors, (163), 32 states have return successors, (229), 166 states have call predecessors, (229), 161 states have call successors, (229) [2023-11-23 07:36:37,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 760 transitions. [2023-11-23 07:36:37,788 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 760 transitions. Word has length 264 [2023-11-23 07:36:37,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:37,788 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 760 transitions. [2023-11-23 07:36:37,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 7 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2023-11-23 07:36:37,788 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 760 transitions. [2023-11-23 07:36:37,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-23 07:36:37,790 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:37,790 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:36:37,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-23 07:36:38,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 07:36:38,005 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:38,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:38,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1973057407, now seen corresponding path program 1 times [2023-11-23 07:36:38,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:38,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451740578] [2023-11-23 07:36:38,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:38,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:38,085 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:38,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [921762404] [2023-11-23 07:36:38,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:38,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:38,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:38,087 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:36:38,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-23 07:36:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:39,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 4474 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 07:36:39,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:39,463 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-11-23 07:36:39,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:39,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:39,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451740578] [2023-11-23 07:36:39,464 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:39,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921762404] [2023-11-23 07:36:39,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921762404] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:39,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:39,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:36:39,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364689438] [2023-11-23 07:36:39,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:39,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:36:39,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:39,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:36:39,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:36:39,466 INFO L87 Difference]: Start difference. First operand 488 states and 760 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-23 07:36:39,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:39,722 INFO L93 Difference]: Finished difference Result 977 states and 1553 transitions. [2023-11-23 07:36:39,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:36:39,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 264 [2023-11-23 07:36:39,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:39,726 INFO L225 Difference]: With dead ends: 977 [2023-11-23 07:36:39,726 INFO L226 Difference]: Without dead ends: 520 [2023-11-23 07:36:39,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:36:39,729 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 6 mSDsluCounter, 1696 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2272 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:39,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2272 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:36:39,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-11-23 07:36:39,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 480. [2023-11-23 07:36:39,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 283 states have (on average 1.2579505300353357) internal successors, (356), 286 states have internal predecessors, (356), 163 states have call successors, (163), 28 states have call predecessors, (163), 32 states have return successors, (229), 166 states have call predecessors, (229), 161 states have call successors, (229) [2023-11-23 07:36:39,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 748 transitions. [2023-11-23 07:36:39,757 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 748 transitions. Word has length 264 [2023-11-23 07:36:39,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:39,757 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 748 transitions. [2023-11-23 07:36:39,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-23 07:36:39,757 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 748 transitions. [2023-11-23 07:36:39,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-23 07:36:39,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:39,759 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:36:39,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-23 07:36:39,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 07:36:39,985 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:39,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:39,985 INFO L85 PathProgramCache]: Analyzing trace with hash -169539903, now seen corresponding path program 1 times [2023-11-23 07:36:39,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:39,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228661615] [2023-11-23 07:36:39,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:39,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:40,066 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:40,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [162882763] [2023-11-23 07:36:40,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:40,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:40,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:40,067 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:36:40,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-23 07:36:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:42,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 4474 conjuncts, 53 conjunts are in the unsatisfiable core [2023-11-23 07:36:42,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:42,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:36:42,489 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-23 07:36:42,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:42,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:42,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228661615] [2023-11-23 07:36:42,490 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:42,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162882763] [2023-11-23 07:36:42,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162882763] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:42,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:42,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 07:36:42,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12586877] [2023-11-23 07:36:42,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:42,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 07:36:42,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:42,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 07:36:42,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:36:42,491 INFO L87 Difference]: Start difference. First operand 480 states and 748 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 11 states have internal predecessors, (114), 7 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2023-11-23 07:36:46,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:46,240 INFO L93 Difference]: Finished difference Result 1026 states and 1665 transitions. [2023-11-23 07:36:46,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 07:36:46,241 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 11 states have internal predecessors, (114), 7 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) Word has length 264 [2023-11-23 07:36:46,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:46,245 INFO L225 Difference]: With dead ends: 1026 [2023-11-23 07:36:46,245 INFO L226 Difference]: Without dead ends: 577 [2023-11-23 07:36:46,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:36:46,249 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 289 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 3456 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 3671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 3456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:46,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 1850 Invalid, 3671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 3456 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-23 07:36:46,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2023-11-23 07:36:46,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 502. [2023-11-23 07:36:46,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 304 states have (on average 1.25) internal successors, (380), 305 states have internal predecessors, (380), 163 states have call successors, (163), 28 states have call predecessors, (163), 33 states have return successors, (248), 169 states have call predecessors, (248), 161 states have call successors, (248) [2023-11-23 07:36:46,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 791 transitions. [2023-11-23 07:36:46,275 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 791 transitions. Word has length 264 [2023-11-23 07:36:46,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:46,275 INFO L495 AbstractCegarLoop]: Abstraction has 502 states and 791 transitions. [2023-11-23 07:36:46,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 11 states have internal predecessors, (114), 7 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2023-11-23 07:36:46,275 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 791 transitions. [2023-11-23 07:36:46,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-23 07:36:46,277 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:46,277 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:36:46,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-23 07:36:46,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:46,492 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:46,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:46,493 INFO L85 PathProgramCache]: Analyzing trace with hash -832305791, now seen corresponding path program 1 times [2023-11-23 07:36:46,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:46,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550275066] [2023-11-23 07:36:46,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:46,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:46,573 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:46,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [77712583] [2023-11-23 07:36:46,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:46,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:46,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:46,575 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:36:46,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-23 07:36:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:55,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 4468 conjuncts, 119 conjunts are in the unsatisfiable core [2023-11-23 07:36:55,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:55,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-23 07:36:57,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-23 07:37:16,428 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 293 proven. 3 refuted. 12 times theorem prover too weak. 162 trivial. 0 not checked. [2023-11-23 07:37:16,428 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:37:19,186 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 07:37:21,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:37:21,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550275066] [2023-11-23 07:37:21,241 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:37:21,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77712583] [2023-11-23 07:37:21,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77712583] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:37:21,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:37:21,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2023-11-23 07:37:21,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420364176] [2023-11-23 07:37:21,241 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 07:37:21,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-23 07:37:21,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:37:21,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-23 07:37:21,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1057, Unknown=8, NotChecked=0, Total=1190 [2023-11-23 07:37:21,243 INFO L87 Difference]: Start difference. First operand 502 states and 791 transitions. Second operand has 21 states, 18 states have (on average 6.555555555555555) internal successors, (118), 20 states have internal predecessors, (118), 12 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (32), 11 states have call predecessors, (32), 12 states have call successors, (32) [2023-11-23 07:37:34,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:37:36,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:37:38,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:37:45,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:37:47,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:37:47,705 INFO L93 Difference]: Finished difference Result 1560 states and 2513 transitions. [2023-11-23 07:37:47,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-23 07:37:47,706 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 6.555555555555555) internal successors, (118), 20 states have internal predecessors, (118), 12 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (32), 11 states have call predecessors, (32), 12 states have call successors, (32) Word has length 264 [2023-11-23 07:37:47,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:37:47,713 INFO L225 Difference]: With dead ends: 1560 [2023-11-23 07:37:47,713 INFO L226 Difference]: Without dead ends: 1089 [2023-11-23 07:37:47,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 325 SyntacticMatches, 8 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 34.4s TimeCoverageRelationStatistics Valid=418, Invalid=2870, Unknown=18, NotChecked=0, Total=3306 [2023-11-23 07:37:47,717 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 1011 mSDsluCounter, 3265 mSDsCounter, 0 mSdLazyCounter, 7288 mSolverCounterSat, 1064 mSolverCounterUnsat, 67 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 3631 SdHoareTripleChecker+Invalid, 8419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1064 IncrementalHoareTripleChecker+Valid, 7288 IncrementalHoareTripleChecker+Invalid, 67 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:37:47,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 3631 Invalid, 8419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1064 Valid, 7288 Invalid, 67 Unknown, 0 Unchecked, 16.5s Time] [2023-11-23 07:37:47,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2023-11-23 07:37:47,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1045. [2023-11-23 07:37:47,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 633 states have (on average 1.2575039494470774) internal successors, (796), 636 states have internal predecessors, (796), 341 states have call successors, (341), 56 states have call predecessors, (341), 69 states have return successors, (523), 354 states have call predecessors, (523), 338 states have call successors, (523) [2023-11-23 07:37:47,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1660 transitions. [2023-11-23 07:37:47,780 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1660 transitions. Word has length 264 [2023-11-23 07:37:47,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:37:47,781 INFO L495 AbstractCegarLoop]: Abstraction has 1045 states and 1660 transitions. [2023-11-23 07:37:47,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 6.555555555555555) internal successors, (118), 20 states have internal predecessors, (118), 12 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (32), 11 states have call predecessors, (32), 12 states have call successors, (32) [2023-11-23 07:37:47,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1660 transitions. [2023-11-23 07:37:47,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-23 07:37:47,788 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:37:47,788 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:37:47,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-23 07:37:48,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:37:48,012 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:37:48,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:37:48,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1219778241, now seen corresponding path program 1 times [2023-11-23 07:37:48,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:37:48,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439826586] [2023-11-23 07:37:48,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:48,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:37:48,091 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:37:48,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1560030345] [2023-11-23 07:37:48,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:48,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:37:48,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:37:48,109 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:37:48,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-23 07:37:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:49,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 4478 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 07:37:49,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:37:49,246 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-23 07:37:49,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:37:49,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:37:49,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439826586] [2023-11-23 07:37:49,247 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:37:49,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560030345] [2023-11-23 07:37:49,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560030345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:37:49,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:37:49,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:37:49,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129287846] [2023-11-23 07:37:49,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:37:49,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:37:49,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:37:49,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:37:49,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:37:49,248 INFO L87 Difference]: Start difference. First operand 1045 states and 1660 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-23 07:37:49,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:37:49,479 INFO L93 Difference]: Finished difference Result 2052 states and 3343 transitions. [2023-11-23 07:37:49,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:37:49,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 264 [2023-11-23 07:37:49,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:37:49,486 INFO L225 Difference]: With dead ends: 2052 [2023-11-23 07:37:49,486 INFO L226 Difference]: Without dead ends: 1067 [2023-11-23 07:37:49,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:37:49,493 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 2 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:37:49,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1684 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:37:49,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2023-11-23 07:37:49,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1055. [2023-11-23 07:37:49,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1055 states, 643 states have (on average 1.2488335925349923) internal successors, (803), 646 states have internal predecessors, (803), 341 states have call successors, (341), 56 states have call predecessors, (341), 69 states have return successors, (523), 354 states have call predecessors, (523), 338 states have call successors, (523) [2023-11-23 07:37:49,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1667 transitions. [2023-11-23 07:37:49,558 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1667 transitions. Word has length 264 [2023-11-23 07:37:49,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:37:49,558 INFO L495 AbstractCegarLoop]: Abstraction has 1055 states and 1667 transitions. [2023-11-23 07:37:49,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-23 07:37:49,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1667 transitions. [2023-11-23 07:37:49,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-11-23 07:37:49,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:37:49,561 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:37:49,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-23 07:37:49,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-23 07:37:49,782 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:37:49,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:37:49,783 INFO L85 PathProgramCache]: Analyzing trace with hash 2053084603, now seen corresponding path program 1 times [2023-11-23 07:37:49,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:37:49,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393270066] [2023-11-23 07:37:49,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:49,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:37:49,861 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:37:49,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1334416516] [2023-11-23 07:37:49,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:49,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:37:49,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:37:49,863 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:37:49,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-23 07:37:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:51,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 4502 conjuncts, 83 conjunts are in the unsatisfiable core [2023-11-23 07:37:51,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:37:51,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-23 07:37:51,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-23 07:37:53,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2023-11-23 07:37:55,224 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 07:37:55,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 8 [2023-11-23 07:38:05,461 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 289 proven. 1 refuted. 2 times theorem prover too weak. 178 trivial. 0 not checked. [2023-11-23 07:38:05,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:38:07,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:07,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393270066] [2023-11-23 07:38:07,810 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:07,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334416516] [2023-11-23 07:38:07,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334416516] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:38:07,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:38:07,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-23 07:38:07,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032757021] [2023-11-23 07:38:07,811 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 07:38:07,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 07:38:07,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:07,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 07:38:07,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=222, Unknown=5, NotChecked=0, Total=272 [2023-11-23 07:38:07,812 INFO L87 Difference]: Start difference. First operand 1055 states and 1667 transitions. Second operand has 14 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 8 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (32), 9 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-23 07:38:10,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:38:12,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:38:14,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:38:24,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:38:26,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:38:28,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:38:34,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:38:37,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:38:40,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:38:43,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:38:45,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:38:47,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:38:50,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:38:52,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:38:54,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:38:56,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:38:59,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:39:01,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:39:03,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:39:05,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:39:05,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:05,316 INFO L93 Difference]: Finished difference Result 2853 states and 4517 transitions. [2023-11-23 07:39:05,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-23 07:39:05,318 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 8 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (32), 9 states have call predecessors, (32), 8 states have call successors, (32) Word has length 269 [2023-11-23 07:39:05,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:05,345 INFO L225 Difference]: With dead ends: 2853 [2023-11-23 07:39:05,346 INFO L226 Difference]: Without dead ends: 1912 [2023-11-23 07:39:05,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 428 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 26.4s TimeCoverageRelationStatistics Valid=138, Invalid=722, Unknown=10, NotChecked=0, Total=870 [2023-11-23 07:39:05,362 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 946 mSDsluCounter, 2559 mSDsCounter, 0 mSdLazyCounter, 3541 mSolverCounterSat, 1018 mSolverCounterUnsat, 40 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 2962 SdHoareTripleChecker+Invalid, 4599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1018 IncrementalHoareTripleChecker+Valid, 3541 IncrementalHoareTripleChecker+Invalid, 40 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:05,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 2962 Invalid, 4599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1018 Valid, 3541 Invalid, 40 Unknown, 0 Unchecked, 47.0s Time] [2023-11-23 07:39:05,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2023-11-23 07:39:05,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1898. [2023-11-23 07:39:05,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1898 states, 1171 states have (on average 1.2433817250213492) internal successors, (1456), 1175 states have internal predecessors, (1456), 596 states have call successors, (596), 106 states have call predecessors, (596), 129 states have return successors, (935), 619 states have call predecessors, (935), 591 states have call successors, (935) [2023-11-23 07:39:05,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2987 transitions. [2023-11-23 07:39:05,528 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2987 transitions. Word has length 269 [2023-11-23 07:39:05,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:05,528 INFO L495 AbstractCegarLoop]: Abstraction has 1898 states and 2987 transitions. [2023-11-23 07:39:05,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 8 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (32), 9 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-23 07:39:05,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2987 transitions. [2023-11-23 07:39:05,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-11-23 07:39:05,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:05,532 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:05,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:05,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-23 07:39:05,752 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:05,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:05,753 INFO L85 PathProgramCache]: Analyzing trace with hash -2052491121, now seen corresponding path program 1 times [2023-11-23 07:39:05,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:05,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862334558] [2023-11-23 07:39:05,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:05,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:05,838 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:05,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [469169345] [2023-11-23 07:39:05,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:05,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:05,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:05,840 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:05,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-23 07:39:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 4518 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-23 07:39:07,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:07,546 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2023-11-23 07:39:07,546 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:07,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:07,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862334558] [2023-11-23 07:39:07,547 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:07,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469169345] [2023-11-23 07:39:07,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469169345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:07,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:07,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:39:07,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036280789] [2023-11-23 07:39:07,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:07,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:39:07,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:07,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:39:07,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:39:07,552 INFO L87 Difference]: Start difference. First operand 1898 states and 2987 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-23 07:39:07,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:07,962 INFO L93 Difference]: Finished difference Result 3722 states and 6043 transitions. [2023-11-23 07:39:07,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 07:39:07,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 274 [2023-11-23 07:39:07,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:07,974 INFO L225 Difference]: With dead ends: 3722 [2023-11-23 07:39:07,974 INFO L226 Difference]: Without dead ends: 1914 [2023-11-23 07:39:07,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:39:07,983 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 6 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:07,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1671 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 07:39:07,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2023-11-23 07:39:08,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1902. [2023-11-23 07:39:08,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1175 states have (on average 1.2425531914893617) internal successors, (1460), 1179 states have internal predecessors, (1460), 596 states have call successors, (596), 106 states have call predecessors, (596), 129 states have return successors, (935), 619 states have call predecessors, (935), 591 states have call successors, (935) [2023-11-23 07:39:08,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2991 transitions. [2023-11-23 07:39:08,125 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2991 transitions. Word has length 274 [2023-11-23 07:39:08,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:08,125 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2991 transitions. [2023-11-23 07:39:08,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-23 07:39:08,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2991 transitions. [2023-11-23 07:39:08,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-11-23 07:39:08,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:08,128 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:08,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:08,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:08,355 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:08,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:08,356 INFO L85 PathProgramCache]: Analyzing trace with hash -175158431, now seen corresponding path program 1 times [2023-11-23 07:39:08,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:08,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563701666] [2023-11-23 07:39:08,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:08,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:08,436 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:08,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1942168066] [2023-11-23 07:39:08,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:08,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:08,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:08,438 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:08,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-23 07:39:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:09,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 4524 conjuncts, 124 conjunts are in the unsatisfiable core [2023-11-23 07:39:09,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:09,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:39:09,886 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2023-11-23 07:39:09,886 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:09,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:09,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563701666] [2023-11-23 07:39:09,886 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:09,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942168066] [2023-11-23 07:39:09,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942168066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:09,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:09,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 07:39:09,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024416428] [2023-11-23 07:39:09,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:09,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 07:39:09,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:09,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 07:39:09,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:39:09,888 INFO L87 Difference]: Start difference. First operand 1902 states and 2991 transitions. Second operand has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 5 states have call successors, (30), 3 states have call predecessors, (30), 6 states have return successors, (29), 6 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-23 07:39:13,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:13,345 INFO L93 Difference]: Finished difference Result 3662 states and 5921 transitions. [2023-11-23 07:39:13,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 07:39:13,345 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 5 states have call successors, (30), 3 states have call predecessors, (30), 6 states have return successors, (29), 6 states have call predecessors, (29), 5 states have call successors, (29) Word has length 274 [2023-11-23 07:39:13,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:13,357 INFO L225 Difference]: With dead ends: 3662 [2023-11-23 07:39:13,357 INFO L226 Difference]: Without dead ends: 1958 [2023-11-23 07:39:13,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:39:13,364 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 221 mSDsluCounter, 2622 mSDsCounter, 0 mSdLazyCounter, 3432 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 3028 SdHoareTripleChecker+Invalid, 3642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 3432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:13,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 3028 Invalid, 3642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 3432 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-23 07:39:13,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2023-11-23 07:39:13,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1923. [2023-11-23 07:39:13,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1923 states, 1190 states have (on average 1.2394957983193278) internal successors, (1475), 1197 states have internal predecessors, (1475), 596 states have call successors, (596), 106 states have call predecessors, (596), 135 states have return successors, (992), 622 states have call predecessors, (992), 591 states have call successors, (992) [2023-11-23 07:39:13,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 3063 transitions. [2023-11-23 07:39:13,509 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 3063 transitions. Word has length 274 [2023-11-23 07:39:13,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:13,510 INFO L495 AbstractCegarLoop]: Abstraction has 1923 states and 3063 transitions. [2023-11-23 07:39:13,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 5 states have call successors, (30), 3 states have call predecessors, (30), 6 states have return successors, (29), 6 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-23 07:39:13,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 3063 transitions. [2023-11-23 07:39:13,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-11-23 07:39:13,513 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:13,513 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:13,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-23 07:39:13,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:13,734 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:13,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:13,735 INFO L85 PathProgramCache]: Analyzing trace with hash -141348722, now seen corresponding path program 1 times [2023-11-23 07:39:13,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:13,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107612415] [2023-11-23 07:39:13,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:13,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:13,844 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:13,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [499578516] [2023-11-23 07:39:13,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:13,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:13,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:13,846 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:13,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-23 07:39:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:15,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 4528 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-23 07:39:15,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:15,164 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2023-11-23 07:39:15,164 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:15,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:15,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107612415] [2023-11-23 07:39:15,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:15,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499578516] [2023-11-23 07:39:15,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499578516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:15,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:15,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 07:39:15,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884117779] [2023-11-23 07:39:15,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:15,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:39:15,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:15,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:39:15,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:39:15,166 INFO L87 Difference]: Start difference. First operand 1923 states and 3063 transitions. Second operand has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 3 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-23 07:39:15,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:15,916 INFO L93 Difference]: Finished difference Result 3779 states and 6114 transitions. [2023-11-23 07:39:15,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:39:15,917 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 3 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 276 [2023-11-23 07:39:15,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:15,927 INFO L225 Difference]: With dead ends: 3779 [2023-11-23 07:39:15,928 INFO L226 Difference]: Without dead ends: 1958 [2023-11-23 07:39:15,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:39:15,934 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 5 mSDsluCounter, 4248 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4791 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:15,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4791 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 07:39:15,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2023-11-23 07:39:16,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1923. [2023-11-23 07:39:16,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1923 states, 1190 states have (on average 1.2394957983193278) internal successors, (1475), 1197 states have internal predecessors, (1475), 596 states have call successors, (596), 106 states have call predecessors, (596), 135 states have return successors, (989), 622 states have call predecessors, (989), 591 states have call successors, (989) [2023-11-23 07:39:16,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 3060 transitions. [2023-11-23 07:39:16,073 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 3060 transitions. Word has length 276 [2023-11-23 07:39:16,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:16,073 INFO L495 AbstractCegarLoop]: Abstraction has 1923 states and 3060 transitions. [2023-11-23 07:39:16,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 3 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-23 07:39:16,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 3060 transitions. [2023-11-23 07:39:16,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-11-23 07:39:16,076 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:16,077 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:16,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:16,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-23 07:39:16,299 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:16,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:16,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1593637132, now seen corresponding path program 1 times [2023-11-23 07:39:16,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:16,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405688839] [2023-11-23 07:39:16,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:16,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:16,378 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:16,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [349577916] [2023-11-23 07:39:16,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:16,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:16,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:16,380 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:16,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-23 07:39:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:19,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 4503 conjuncts, 219 conjunts are in the unsatisfiable core [2023-11-23 07:39:19,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:19,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:39:19,346 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 45 treesize of output 37 [2023-11-23 07:39:19,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-23 07:39:20,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-23 07:39:20,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 55 [2023-11-23 07:39:27,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-23 07:39:27,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-23 07:39:27,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 55 [2023-11-23 07:39:29,544 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 232 proven. 21 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-11-23 07:39:29,545 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:39:37,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2023-11-23 07:39:37,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:37,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405688839] [2023-11-23 07:39:37,696 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:37,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349577916] [2023-11-23 07:39:37,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349577916] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:39:37,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:39:37,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2023-11-23 07:39:37,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826097986] [2023-11-23 07:39:37,698 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 07:39:37,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-23 07:39:37,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:37,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-23 07:39:37,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1919, Unknown=1, NotChecked=0, Total=2070 [2023-11-23 07:39:37,700 INFO L87 Difference]: Start difference. First operand 1923 states and 3060 transitions. Second operand has 34 states, 28 states have (on average 4.464285714285714) internal successors, (125), 27 states have internal predecessors, (125), 12 states have call successors, (32), 4 states have call predecessors, (32), 10 states have return successors, (32), 13 states have call predecessors, (32), 11 states have call successors, (32) [2023-11-23 07:39:42,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:39:44,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:39:50,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-23 07:39:52,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:39:54,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] Killed by 15