./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_pop_harness_negated.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_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fe7c8437c4e8e4a9eba5347957f7f909106bcd2e8ac9c6d24986782964465428 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 07:35:29,662 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 07:35:29,722 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 07:35:29,729 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 07:35:29,729 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 07:35:29,754 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 07:35:29,755 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 07:35:29,755 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 07:35:29,756 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 07:35:29,759 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 07:35:29,759 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 07:35:29,759 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 07:35:29,760 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 07:35:29,761 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 07:35:29,761 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 07:35:29,762 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 07:35:29,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 07:35:29,762 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 07:35:29,762 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 07:35:29,763 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 07:35:29,763 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 07:35:29,763 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 07:35:29,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 07:35:29,764 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 07:35:29,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 07:35:29,764 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 07:35:29,765 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 07:35:29,765 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 07:35:29,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:35:29,765 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 07:35:29,766 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 07:35:29,766 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 07:35:29,767 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 07:35:29,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 07:35:29,767 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 07:35:29,767 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 07:35:29,767 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 07:35:29,767 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 07:35:29,768 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 07:35:29,768 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe7c8437c4e8e4a9eba5347957f7f909106bcd2e8ac9c6d24986782964465428 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-23 07:35:29,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 07:35:30,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 07:35:30,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 07:35:30,016 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 07:35:30,017 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 07:35:30,018 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_pop_harness_negated.i [2023-11-23 07:35:31,147 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 07:35:31,498 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 07:35:31,499 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_pop_harness_negated.i [2023-11-23 07:35:31,524 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/513297cff/564f238d29514006811320e90f9f0e9b/FLAG547b14c69 [2023-11-23 07:35:31,538 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/513297cff/564f238d29514006811320e90f9f0e9b [2023-11-23 07:35:31,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 07:35:31,542 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 07:35:31,544 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 07:35:31,544 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 07:35:31,548 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 07:35:31,548 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:35:31" (1/1) ... [2023-11-23 07:35:31,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6736efe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:31, skipping insertion in model container [2023-11-23 07:35:31,549 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:35:31" (1/1) ... [2023-11-23 07:35:31,675 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 07:35:31,886 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_negated.i[4496,4509] [2023-11-23 07:35:31,892 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_negated.i[4556,4569] [2023-11-23 07:35:32,329 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,330 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,330 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,330 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,331 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,340 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,340 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,341 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,342 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,343 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,344 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,344 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,345 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,550 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:35:32,553 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:35:32,554 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:35:32,555 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:35:32,557 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:35:32,557 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:35:32,558 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:35:32,558 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:35:32,560 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:35:32,564 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:35:32,708 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,723 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,778 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,779 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,779 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,779 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,780 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,781 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,781 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,782 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,782 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,783 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,783 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,783 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,784 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,786 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,786 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,786 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,786 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,789 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,790 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,796 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,797 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,798 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,825 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:35:32,861 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 07:35:32,880 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_negated.i[4496,4509] [2023-11-23 07:35:32,881 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_negated.i[4556,4569] [2023-11-23 07:35:32,902 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,902 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,902 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,903 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,903 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,908 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,910 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,911 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,911 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,912 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,912 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,914 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,914 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,939 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:35:32,939 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:35:32,940 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:35:32,940 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:35:32,941 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:35:32,941 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:35:32,941 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:35:32,941 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:35:32,941 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:35:32,942 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:35:32,969 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,972 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,975 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7739-7750] [2023-11-23 07:35:32,988 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,988 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,988 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,988 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,988 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,989 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,989 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,989 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,989 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,989 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,989 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,989 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,990 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,990 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,990 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,990 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,990 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,992 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:32,997 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:33,003 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:33,004 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:33,004 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:35:33,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:35:33,176 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:33,176 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:33,176 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:33,176 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:33,177 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:33,177 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:33,177 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:33,177 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:33,178 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:33,178 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:33,178 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:33,178 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:33,178 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:33,179 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:33,179 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:35:33,184 INFO L206 MainTranslator]: Completed translation [2023-11-23 07:35:33,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:33 WrapperNode [2023-11-23 07:35:33,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 07:35:33,186 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 07:35:33,186 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 07:35:33,186 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 07:35:33,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:33" (1/1) ... [2023-11-23 07:35:33,277 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:33" (1/1) ... [2023-11-23 07:35:33,359 INFO L138 Inliner]: procedures = 696, calls = 1919, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1036 [2023-11-23 07:35:33,359 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 07:35:33,360 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 07:35:33,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 07:35:33,361 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 07:35:33,369 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:33" (1/1) ... [2023-11-23 07:35:33,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:33" (1/1) ... [2023-11-23 07:35:33,378 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:33" (1/1) ... [2023-11-23 07:35:33,469 INFO L188 MemorySlicer]: Split 382 memory accesses to 8 slices as follows [2, 259, 83, 15, 0, 17, 3, 3]. 68 percent of accesses are in the largest equivalence class. The 252 initializations are split as follows [2, 242, 0, 0, 0, 4, 1, 3]. The 30 writes are split as follows [0, 8, 5, 13, 0, 3, 1, 0]. [2023-11-23 07:35:33,470 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:33" (1/1) ... [2023-11-23 07:35:33,470 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:33" (1/1) ... [2023-11-23 07:35:33,515 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:33" (1/1) ... [2023-11-23 07:35:33,526 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:33" (1/1) ... [2023-11-23 07:35:33,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:33" (1/1) ... [2023-11-23 07:35:33,597 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:33" (1/1) ... [2023-11-23 07:35:33,612 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 07:35:33,616 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 07:35:33,617 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 07:35:33,617 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 07:35:33,618 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:33" (1/1) ... [2023-11-23 07:35:33,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:35:33,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:33,667 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 07:35:33,703 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 07:35:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-23 07:35:33,727 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-23 07:35:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-23 07:35:33,727 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-23 07:35:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 07:35:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-23 07:35:33,727 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-23 07:35:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-23 07:35:33,728 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-23 07:35:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 07:35:33,728 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 07:35:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-23 07:35:33,728 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-23 07:35:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-23 07:35:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-23 07:35:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-23 07:35:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-23 07:35:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-23 07:35:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-23 07:35:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-23 07:35:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-23 07:35:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 07:35:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 07:35:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 07:35:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 07:35:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 07:35:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 07:35:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 07:35:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 07:35:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 07:35:33,731 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 07:35:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 07:35:33,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 07:35:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2023-11-23 07:35:33,732 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2023-11-23 07:35:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 07:35:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 07:35:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 07:35:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 07:35:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 07:35:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 07:35:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 07:35:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 07:35:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 07:35:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-23 07:35:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-23 07:35:33,736 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-23 07:35:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-23 07:35:33,740 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-23 07:35:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 07:35:33,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 07:35:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 07:35:33,741 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 07:35:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 07:35:33,741 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 07:35:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-23 07:35:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-23 07:35:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-23 07:35:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-23 07:35:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-23 07:35:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-23 07:35:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-23 07:35:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-23 07:35:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-23 07:35:33,742 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-23 07:35:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-23 07:35:33,742 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-23 07:35:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-23 07:35:33,743 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-23 07:35:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-23 07:35:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-23 07:35:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-23 07:35:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-23 07:35:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-23 07:35:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-11-23 07:35:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-11-23 07:35:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2023-11-23 07:35:33,744 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-23 07:35:33,744 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-23 07:35:33,744 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-23 07:35:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-23 07:35:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-23 07:35:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-11-23 07:35:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-11-23 07:35:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2023-11-23 07:35:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 07:35:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 07:35:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-23 07:35:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-23 07:35:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-11-23 07:35:33,746 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-11-23 07:35:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 07:35:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 07:35:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 07:35:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 07:35:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 07:35:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 07:35:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 07:35:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 07:35:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-23 07:35:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 07:35:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 07:35:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 07:35:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 07:35:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 07:35:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 07:35:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 07:35:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-23 07:35:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-23 07:35:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-23 07:35:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 07:35:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 07:35:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 07:35:33,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 07:35:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 07:35:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 07:35:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 07:35:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 07:35:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 07:35:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 07:35:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 07:35:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 07:35:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-23 07:35:33,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-23 07:35:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 07:35:33,752 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 07:35:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 07:35:33,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 07:35:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 07:35:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 07:35:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 07:35:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 07:35:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 07:35:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 07:35:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 07:35:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 07:35:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2023-11-23 07:35:33,753 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2023-11-23 07:35:34,111 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 07:35:34,113 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 07:35:34,929 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 07:35:34,991 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 07:35:34,991 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-23 07:35:34,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:35:34 BoogieIcfgContainer [2023-11-23 07:35:34,992 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 07:35:34,993 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 07:35:34,993 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 07:35:34,995 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 07:35:34,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:35:31" (1/3) ... [2023-11-23 07:35:34,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aee97cb 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 07:35:34,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:35:33" (2/3) ... [2023-11-23 07:35:34,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aee97cb 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 07:35:34,996 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 07:35:34,997 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness_negated.i [2023-11-23 07:35:35,009 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 07:35:35,010 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 07:35:35,046 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 07:35:35,051 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;@39420878, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 07:35:35,051 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 07:35:35,055 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 07:35:35,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-23 07:35:35,066 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:35,067 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 07:35:35,067 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:35,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:35,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1623651933, now seen corresponding path program 1 times [2023-11-23 07:35:35,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:35,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834873190] [2023-11-23 07:35:35,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:35,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:35:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:35:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:35:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:35:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:35:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:35:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:35:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:35:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:35:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:35:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:35:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 07:35:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:35:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 07:35:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 07:35:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 07:35:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 07:35:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 07:35:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 07:35:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 07:35:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 07:35:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:35,960 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 07:35:35,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:35,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834873190] [2023-11-23 07:35:35,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834873190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:35:35,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:35:35,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:35:35,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110061154] [2023-11-23 07:35:35,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:35:35,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:35:35,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:35,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:35:35,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:35:35,988 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 07:35:39,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:35:39,390 INFO L93 Difference]: Finished difference Result 989 states and 1724 transitions. [2023-11-23 07:35:39,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:35:39,393 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 07:35:39,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:35:39,404 INFO L225 Difference]: With dead ends: 989 [2023-11-23 07:35:39,405 INFO L226 Difference]: Without dead ends: 584 [2023-11-23 07:35:39,411 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 07:35:39,416 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 297 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:35:39,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 916 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-23 07:35:39,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-11-23 07:35:39,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 408. [2023-11-23 07:35:39,488 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 07:35:39,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 591 transitions. [2023-11-23 07:35:39,493 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 591 transitions. Word has length 124 [2023-11-23 07:35:39,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:35:39,494 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 591 transitions. [2023-11-23 07:35:39,494 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 07:35:39,494 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 591 transitions. [2023-11-23 07:35:39,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-23 07:35:39,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:39,497 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 07:35:39,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 07:35:39,497 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:39,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:39,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1387531693, now seen corresponding path program 1 times [2023-11-23 07:35:39,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:39,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471324882] [2023-11-23 07:35:39,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:39,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:35:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:35:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:39,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:35:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:35:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:35:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:35:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:35:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:35:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:35:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:35:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:35:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 07:35:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:35:40,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 07:35:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 07:35:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 07:35:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 07:35:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 07:35:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 07:35:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 07:35:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 07:35:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,296 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 07:35:40,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:40,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471324882] [2023-11-23 07:35:40,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471324882] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:35:40,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046075243] [2023-11-23 07:35:40,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:40,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:40,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:40,313 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 07:35:40,368 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 07:35:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:40,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 2802 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 07:35:40,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:35:40,978 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 07:35:40,978 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:35:40,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046075243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:35:40,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:35:40,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-23 07:35:40,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345030838] [2023-11-23 07:35:40,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:35:40,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:35:40,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:40,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:35:40,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:35:40,981 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 07:35:41,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:35:41,697 INFO L93 Difference]: Finished difference Result 787 states and 1156 transitions. [2023-11-23 07:35:41,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:35:41,697 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 07:35:41,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:35:41,700 INFO L225 Difference]: With dead ends: 787 [2023-11-23 07:35:41,701 INFO L226 Difference]: Without dead ends: 410 [2023-11-23 07:35:41,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:35:41,703 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 57 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:35:41,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 2049 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 07:35:41,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-11-23 07:35:41,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2023-11-23 07:35:41,746 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 07:35:41,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 605 transitions. [2023-11-23 07:35:41,749 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 605 transitions. Word has length 124 [2023-11-23 07:35:41,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:35:41,749 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 605 transitions. [2023-11-23 07:35:41,749 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 07:35:41,750 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 605 transitions. [2023-11-23 07:35:41,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-23 07:35:41,751 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:41,751 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 07:35:41,775 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 07:35:41,967 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 07:35:41,968 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:41,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:41,968 INFO L85 PathProgramCache]: Analyzing trace with hash -341953142, now seen corresponding path program 1 times [2023-11-23 07:35:41,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:41,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467200162] [2023-11-23 07:35:41,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:41,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:35:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:35:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:35:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:35:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:35:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:35:42,495 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 31 [2023-11-23 07:35:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:35:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:35:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:35:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:35:42,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 07:35:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 07:35:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:35:42,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 07:35:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 07:35:42,790 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 90 [2023-11-23 07:35:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 07:35:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 07:35:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 07:35:42,814 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 117 [2023-11-23 07:35:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 07:35:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:42,833 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 07:35:42,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:42,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467200162] [2023-11-23 07:35:42,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467200162] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:35:42,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541468446] [2023-11-23 07:35:42,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:42,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:42,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:42,835 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 07:35:42,868 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 07:35:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:43,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 2908 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 07:35:43,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:35:43,469 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 07:35:43,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:35:43,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541468446] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:35:43,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:35:43,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-11-23 07:35:43,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818498901] [2023-11-23 07:35:43,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:35:43,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:35:43,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:43,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:35:43,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:35:43,471 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 07:35:44,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:35:44,571 INFO L93 Difference]: Finished difference Result 810 states and 1227 transitions. [2023-11-23 07:35:44,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:35:44,572 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 07:35:44,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:35:44,575 INFO L225 Difference]: With dead ends: 810 [2023-11-23 07:35:44,575 INFO L226 Difference]: Without dead ends: 431 [2023-11-23 07:35:44,577 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 07:35:44,577 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 108 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:35:44,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 2955 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 07:35:44,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-11-23 07:35:44,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 429. [2023-11-23 07:35:44,599 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 07:35:44,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 648 transitions. [2023-11-23 07:35:44,602 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 648 transitions. Word has length 132 [2023-11-23 07:35:44,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:35:44,602 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 648 transitions. [2023-11-23 07:35:44,603 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 07:35:44,603 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 648 transitions. [2023-11-23 07:35:44,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-23 07:35:44,604 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:44,604 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 07:35:44,636 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 07:35:44,820 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 07:35:44,820 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:44,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:44,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1284020288, now seen corresponding path program 1 times [2023-11-23 07:35:44,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:44,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657413372] [2023-11-23 07:35:44,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:44,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:44,916 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:35:44,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1643100887] [2023-11-23 07:35:44,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:44,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:44,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:44,933 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 07:35:44,959 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 07:35:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:45,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 3103 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 07:35:45,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:35:45,605 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 07:35:45,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:35:45,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:45,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657413372] [2023-11-23 07:35:45,606 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:35:45,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643100887] [2023-11-23 07:35:45,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643100887] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:35:45,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:35:45,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:35:45,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829045603] [2023-11-23 07:35:45,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:35:45,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:35:45,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:45,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:35:45,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:35:45,608 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 07:35:46,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:35:46,475 INFO L93 Difference]: Finished difference Result 833 states and 1286 transitions. [2023-11-23 07:35:46,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:35:46,476 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 07:35:46,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:35:46,479 INFO L225 Difference]: With dead ends: 833 [2023-11-23 07:35:46,479 INFO L226 Difference]: Without dead ends: 435 [2023-11-23 07:35:46,481 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 07:35:46,482 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 76 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 07:35:46,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 2526 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 07:35:46,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2023-11-23 07:35:46,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 429. [2023-11-23 07:35:46,501 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 07:35:46,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 648 transitions. [2023-11-23 07:35:46,505 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 648 transitions. Word has length 145 [2023-11-23 07:35:46,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:35:46,505 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 648 transitions. [2023-11-23 07:35:46,506 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 07:35:46,506 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 648 transitions. [2023-11-23 07:35:46,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-23 07:35:46,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:46,507 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 07:35:46,523 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 07:35:46,723 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 07:35:46,723 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:46,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:46,724 INFO L85 PathProgramCache]: Analyzing trace with hash 708862416, now seen corresponding path program 1 times [2023-11-23 07:35:46,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:46,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692099698] [2023-11-23 07:35:46,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:46,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:46,822 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:35:46,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1131740974] [2023-11-23 07:35:46,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:46,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:46,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:46,837 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 07:35:46,838 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 07:35:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:47,490 INFO L262 TraceCheckSpWp]: Trace formula consists of 3226 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 07:35:47,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:35:47,579 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 07:35:47,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:35:47,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:47,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692099698] [2023-11-23 07:35:47,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:35:47,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131740974] [2023-11-23 07:35:47,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131740974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:35:47,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:35:47,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:35:47,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151824773] [2023-11-23 07:35:47,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:35:47,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:35:47,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:47,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:35:47,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:35:47,581 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 07:35:49,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:35:49,030 INFO L93 Difference]: Finished difference Result 843 states and 1290 transitions. [2023-11-23 07:35:49,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:35:49,031 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 07:35:49,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:35:49,035 INFO L225 Difference]: With dead ends: 843 [2023-11-23 07:35:49,035 INFO L226 Difference]: Without dead ends: 445 [2023-11-23 07:35:49,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:35:49,038 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 136 mSDsluCounter, 2882 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:35:49,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 3389 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-23 07:35:49,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2023-11-23 07:35:49,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 429. [2023-11-23 07:35:49,059 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 07:35:49,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 648 transitions. [2023-11-23 07:35:49,062 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 648 transitions. Word has length 161 [2023-11-23 07:35:49,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:35:49,063 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 648 transitions. [2023-11-23 07:35:49,063 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 07:35:49,063 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 648 transitions. [2023-11-23 07:35:49,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-23 07:35:49,066 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:49,066 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 07:35:49,086 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 07:35:49,283 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 07:35:49,283 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:49,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:49,284 INFO L85 PathProgramCache]: Analyzing trace with hash 845942126, now seen corresponding path program 2 times [2023-11-23 07:35:49,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:49,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643385008] [2023-11-23 07:35:49,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:49,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:49,356 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:35:49,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1253332711] [2023-11-23 07:35:49,356 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:35:49,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:49,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:49,357 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 07:35:49,359 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 07:35:49,845 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 07:35:49,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:35:49,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 1862 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 07:35:49,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:35:49,886 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-23 07:35:49,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:35:49,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:49,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643385008] [2023-11-23 07:35:49,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:35:49,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253332711] [2023-11-23 07:35:49,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253332711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:35:49,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:35:49,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:35:49,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750473772] [2023-11-23 07:35:49,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:35:49,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:35:49,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:49,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:35:49,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:35:49,889 INFO L87 Difference]: Start difference. First operand 429 states and 648 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 07:35:50,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:35:50,147 INFO L93 Difference]: Finished difference Result 437 states and 656 transitions. [2023-11-23 07:35:50,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:35:50,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 174 [2023-11-23 07:35:50,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:35:50,150 INFO L225 Difference]: With dead ends: 437 [2023-11-23 07:35:50,150 INFO L226 Difference]: Without dead ends: 435 [2023-11-23 07:35:50,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:35:50,151 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 5 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2794 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:35:50,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2794 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:35:50,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2023-11-23 07:35:50,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 434. [2023-11-23 07:35:50,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 244 states have (on average 1.2581967213114753) internal successors, (307), 248 states have internal predecessors, (307), 159 states have call successors, (159), 28 states have call predecessors, (159), 29 states have return successors, (187), 158 states have call predecessors, (187), 157 states have call successors, (187) [2023-11-23 07:35:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 653 transitions. [2023-11-23 07:35:50,172 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 653 transitions. Word has length 174 [2023-11-23 07:35:50,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:35:50,173 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 653 transitions. [2023-11-23 07:35:50,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 07:35:50,173 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 653 transitions. [2023-11-23 07:35:50,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-23 07:35:50,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:50,174 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:50,191 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 07:35:50,388 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 07:35:50,389 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:50,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:50,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1708531806, now seen corresponding path program 3 times [2023-11-23 07:35:50,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:50,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113647024] [2023-11-23 07:35:50,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:50,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:50,507 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:35:50,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [957509266] [2023-11-23 07:35:50,508 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 07:35:50,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:50,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:50,509 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 07:35:50,535 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 07:35:51,161 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 07:35:51,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:35:51,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 2184 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 07:35:51,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:35:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-11-23 07:35:51,248 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:35:51,479 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2023-11-23 07:35:51,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:51,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113647024] [2023-11-23 07:35:51,480 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:35:51,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957509266] [2023-11-23 07:35:51,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957509266] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:35:51,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:35:51,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2023-11-23 07:35:51,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301003369] [2023-11-23 07:35:51,481 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 07:35:51,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:35:51,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:51,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:35:51,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:35:51,483 INFO L87 Difference]: Start difference. First operand 434 states and 653 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-23 07:35:52,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:35:52,257 INFO L93 Difference]: Finished difference Result 808 states and 1252 transitions. [2023-11-23 07:35:52,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:35:52,258 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 187 [2023-11-23 07:35:52,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:35:52,261 INFO L225 Difference]: With dead ends: 808 [2023-11-23 07:35:52,261 INFO L226 Difference]: Without dead ends: 441 [2023-11-23 07:35:52,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:35:52,264 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 21 mSDsluCounter, 2635 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3181 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:35:52,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3181 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 07:35:52,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2023-11-23 07:35:52,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 439. [2023-11-23 07:35:52,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 247 states have (on average 1.2550607287449393) internal successors, (310), 250 states have internal predecessors, (310), 161 states have call successors, (161), 29 states have call predecessors, (161), 29 states have return successors, (189), 160 states have call predecessors, (189), 159 states have call successors, (189) [2023-11-23 07:35:52,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 660 transitions. [2023-11-23 07:35:52,290 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 660 transitions. Word has length 187 [2023-11-23 07:35:52,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:35:52,290 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 660 transitions. [2023-11-23 07:35:52,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-23 07:35:52,291 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 660 transitions. [2023-11-23 07:35:52,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-23 07:35:52,292 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:52,292 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:35:52,310 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 07:35:52,508 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 07:35:52,508 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:52,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:52,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1128151117, now seen corresponding path program 1 times [2023-11-23 07:35:52,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:52,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105262068] [2023-11-23 07:35:52,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:52,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:52,597 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:35:52,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [638514756] [2023-11-23 07:35:52,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:52,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:52,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:52,620 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 07:35:52,635 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 07:35:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:53,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 3464 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 07:35:53,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:35:53,477 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-11-23 07:35:53,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:35:53,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:53,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105262068] [2023-11-23 07:35:53,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:35:53,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638514756] [2023-11-23 07:35:53,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638514756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:35:53,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:35:53,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:35:53,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801035900] [2023-11-23 07:35:53,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:35:53,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:35:53,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:53,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:35:53,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:35:53,480 INFO L87 Difference]: Start difference. First operand 439 states and 660 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-23 07:35:54,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:35:54,586 INFO L93 Difference]: Finished difference Result 819 states and 1250 transitions. [2023-11-23 07:35:54,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:35:54,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 188 [2023-11-23 07:35:54,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:35:54,589 INFO L225 Difference]: With dead ends: 819 [2023-11-23 07:35:54,589 INFO L226 Difference]: Without dead ends: 441 [2023-11-23 07:35:54,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 184 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 07:35:54,591 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 62 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:35:54,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 2566 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 07:35:54,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2023-11-23 07:35:54,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2023-11-23 07:35:54,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 248 states have (on average 1.2540322580645162) internal successors, (311), 252 states have internal predecessors, (311), 161 states have call successors, (161), 29 states have call predecessors, (161), 30 states have return successors, (200), 160 states have call predecessors, (200), 159 states have call successors, (200) [2023-11-23 07:35:54,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 672 transitions. [2023-11-23 07:35:54,612 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 672 transitions. Word has length 188 [2023-11-23 07:35:54,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:35:54,612 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 672 transitions. [2023-11-23 07:35:54,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-23 07:35:54,613 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 672 transitions. [2023-11-23 07:35:54,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-11-23 07:35:54,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:54,614 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:54,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-23 07:35:54,828 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 07:35:54,829 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:54,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:54,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1382369776, now seen corresponding path program 1 times [2023-11-23 07:35:54,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:54,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058434509] [2023-11-23 07:35:54,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:54,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:54,918 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:35:54,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1200481314] [2023-11-23 07:35:54,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:54,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:54,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:54,920 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 07:35:54,945 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 07:35:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:35:55,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 3570 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 07:35:55,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:35:55,748 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-23 07:35:55,748 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:35:55,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:55,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058434509] [2023-11-23 07:35:55,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:35:55,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200481314] [2023-11-23 07:35:55,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200481314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:35:55,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:35:55,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:35:55,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772643670] [2023-11-23 07:35:55,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:35:55,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:35:55,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:55,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:35:55,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:35:55,750 INFO L87 Difference]: Start difference. First operand 441 states and 672 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-23 07:35:57,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:35:57,163 INFO L93 Difference]: Finished difference Result 837 states and 1294 transitions. [2023-11-23 07:35:57,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:35:57,163 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 196 [2023-11-23 07:35:57,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:35:57,166 INFO L225 Difference]: With dead ends: 837 [2023-11-23 07:35:57,166 INFO L226 Difference]: Without dead ends: 457 [2023-11-23 07:35:57,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:35:57,171 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 114 mSDsluCounter, 2926 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 3439 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:35:57,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 3439 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 07:35:57,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-23 07:35:57,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 455. [2023-11-23 07:35:57,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 261 states have (on average 1.260536398467433) internal successors, (329), 264 states have internal predecessors, (329), 162 states have call successors, (162), 29 states have call predecessors, (162), 30 states have return successors, (201), 162 states have call predecessors, (201), 160 states have call successors, (201) [2023-11-23 07:35:57,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 692 transitions. [2023-11-23 07:35:57,193 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 692 transitions. Word has length 196 [2023-11-23 07:35:57,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:35:57,196 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 692 transitions. [2023-11-23 07:35:57,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-23 07:35:57,196 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 692 transitions. [2023-11-23 07:35:57,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-11-23 07:35:57,198 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:57,199 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, 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] [2023-11-23 07:35:57,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 07:35:57,413 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 07:35:57,413 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:57,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:57,414 INFO L85 PathProgramCache]: Analyzing trace with hash 193165986, now seen corresponding path program 2 times [2023-11-23 07:35:57,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:57,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144535091] [2023-11-23 07:35:57,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:57,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:57,499 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:35:57,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1463838676] [2023-11-23 07:35:57,500 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:35:57,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:57,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:57,514 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 07:35:57,517 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 07:35:58,283 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:35:58,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:35:58,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 3765 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 07:35:58,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:35:58,356 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2023-11-23 07:35:58,357 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:35:58,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:35:58,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144535091] [2023-11-23 07:35:58,357 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:35:58,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463838676] [2023-11-23 07:35:58,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463838676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:35:58,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:35:58,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 07:35:58,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607420156] [2023-11-23 07:35:58,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:35:58,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:35:58,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:35:58,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:35:58,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:35:58,360 INFO L87 Difference]: Start difference. First operand 455 states and 692 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-23 07:35:59,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:35:59,468 INFO L93 Difference]: Finished difference Result 855 states and 1328 transitions. [2023-11-23 07:35:59,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:35:59,469 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 209 [2023-11-23 07:35:59,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:35:59,473 INFO L225 Difference]: With dead ends: 855 [2023-11-23 07:35:59,474 INFO L226 Difference]: Without dead ends: 461 [2023-11-23 07:35:59,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 205 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 07:35:59,477 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 81 mSDsluCounter, 2506 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:35:59,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 3035 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 07:35:59,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-11-23 07:35:59,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 455. [2023-11-23 07:35:59,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 261 states have (on average 1.260536398467433) internal successors, (329), 264 states have internal predecessors, (329), 162 states have call successors, (162), 29 states have call predecessors, (162), 30 states have return successors, (201), 162 states have call predecessors, (201), 160 states have call successors, (201) [2023-11-23 07:35:59,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 692 transitions. [2023-11-23 07:35:59,500 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 692 transitions. Word has length 209 [2023-11-23 07:35:59,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:35:59,500 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 692 transitions. [2023-11-23 07:35:59,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-23 07:35:59,501 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 692 transitions. [2023-11-23 07:35:59,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-11-23 07:35:59,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:35:59,502 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:59,522 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 07:35:59,717 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 07:35:59,717 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:35:59,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:35:59,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1620755694, now seen corresponding path program 1 times [2023-11-23 07:35:59,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:35:59,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83043260] [2023-11-23 07:35:59,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:59,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:35:59,864 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:35:59,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1136649409] [2023-11-23 07:35:59,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:35:59,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:35:59,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:35:59,876 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 07:35:59,878 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 07:36:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:00,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 3888 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 07:36:00,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:00,781 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-11-23 07:36:00,781 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:00,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:00,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83043260] [2023-11-23 07:36:00,781 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:00,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136649409] [2023-11-23 07:36:00,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136649409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:00,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:00,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 07:36:00,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300549518] [2023-11-23 07:36:00,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:00,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:36:00,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:00,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:36:00,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:36:00,783 INFO L87 Difference]: Start difference. First operand 455 states and 692 transitions. Second operand has 9 states, 8 states have (on average 12.375) internal successors, (99), 9 states have internal predecessors, (99), 6 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (28), 5 states have call predecessors, (28), 6 states have call successors, (28) [2023-11-23 07:36:02,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:02,386 INFO L93 Difference]: Finished difference Result 849 states and 1300 transitions. [2023-11-23 07:36:02,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:36:02,387 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.375) internal successors, (99), 9 states have internal predecessors, (99), 6 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (28), 5 states have call predecessors, (28), 6 states have call successors, (28) Word has length 225 [2023-11-23 07:36:02,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:02,389 INFO L225 Difference]: With dead ends: 849 [2023-11-23 07:36:02,389 INFO L226 Difference]: Without dead ends: 455 [2023-11-23 07:36:02,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:36:02,392 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 141 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 3873 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:02,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 3873 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-23 07:36:02,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-11-23 07:36:02,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 439. [2023-11-23 07:36:02,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 247 states have (on average 1.2550607287449393) internal successors, (310), 250 states have internal predecessors, (310), 161 states have call successors, (161), 29 states have call predecessors, (161), 29 states have return successors, (187), 160 states have call predecessors, (187), 159 states have call successors, (187) [2023-11-23 07:36:02,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 658 transitions. [2023-11-23 07:36:02,411 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 658 transitions. Word has length 225 [2023-11-23 07:36:02,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:02,412 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 658 transitions. [2023-11-23 07:36:02,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.375) internal successors, (99), 9 states have internal predecessors, (99), 6 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (28), 5 states have call predecessors, (28), 6 states have call successors, (28) [2023-11-23 07:36:02,412 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 658 transitions. [2023-11-23 07:36:02,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-11-23 07:36:02,413 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:02,414 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, 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] [2023-11-23 07:36:02,446 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 07:36:02,644 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 07:36:02,644 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:02,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:02,645 INFO L85 PathProgramCache]: Analyzing trace with hash -585451604, now seen corresponding path program 2 times [2023-11-23 07:36:02,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:02,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914206798] [2023-11-23 07:36:02,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:02,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:02,734 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:02,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1822083218] [2023-11-23 07:36:02,734 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:36:02,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:02,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:02,751 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 07:36:02,795 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 07:36:03,671 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:36:03,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:36:03,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 4083 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 07:36:03,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:03,768 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-11-23 07:36:03,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:03,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:03,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914206798] [2023-11-23 07:36:03,769 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:03,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822083218] [2023-11-23 07:36:03,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822083218] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:03,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:03,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:36:03,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948838234] [2023-11-23 07:36:03,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:03,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:36:03,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:03,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:36:03,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:36:03,771 INFO L87 Difference]: Start difference. First operand 439 states and 658 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 6 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2023-11-23 07:36:05,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:05,149 INFO L93 Difference]: Finished difference Result 813 states and 1231 transitions. [2023-11-23 07:36:05,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:36:05,149 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 6 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) Word has length 238 [2023-11-23 07:36:05,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:05,152 INFO L225 Difference]: With dead ends: 813 [2023-11-23 07:36:05,152 INFO L226 Difference]: Without dead ends: 441 [2023-11-23 07:36:05,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 231 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 07:36:05,154 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 52 mSDsluCounter, 3007 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 3529 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:05,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 3529 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 07:36:05,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2023-11-23 07:36:05,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2023-11-23 07:36:05,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 248 states have (on average 1.2540322580645162) internal successors, (311), 251 states have internal predecessors, (311), 161 states have call successors, (161), 29 states have call predecessors, (161), 30 states have return successors, (193), 161 states have call predecessors, (193), 159 states have call successors, (193) [2023-11-23 07:36:05,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 665 transitions. [2023-11-23 07:36:05,173 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 665 transitions. Word has length 238 [2023-11-23 07:36:05,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:05,174 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 665 transitions. [2023-11-23 07:36:05,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 6 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2023-11-23 07:36:05,174 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 665 transitions. [2023-11-23 07:36:05,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-23 07:36:05,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:05,176 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 07:36:05,194 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 07:36:05,390 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 07:36:05,390 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:05,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:05,390 INFO L85 PathProgramCache]: Analyzing trace with hash -2113449433, now seen corresponding path program 1 times [2023-11-23 07:36:05,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:05,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728961536] [2023-11-23 07:36:05,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:05,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:05,474 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:05,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [272182424] [2023-11-23 07:36:05,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:05,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:05,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:05,476 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 07:36:05,509 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 07:36:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:06,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 4430 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-23 07:36:06,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:06,515 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 07:36:06,515 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:06,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:06,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728961536] [2023-11-23 07:36:06,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:06,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272182424] [2023-11-23 07:36:06,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272182424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:06,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:06,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:36:06,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327837462] [2023-11-23 07:36:06,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:06,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:36:06,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:06,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:36:06,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:36:06,518 INFO L87 Difference]: Start difference. First operand 441 states and 665 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 07:36:08,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:08,095 INFO L93 Difference]: Finished difference Result 860 states and 1311 transitions. [2023-11-23 07:36:08,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:36:08,096 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 07:36:08,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:08,099 INFO L225 Difference]: With dead ends: 860 [2023-11-23 07:36:08,099 INFO L226 Difference]: Without dead ends: 483 [2023-11-23 07:36:08,101 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 07:36:08,101 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 36 mSDsluCounter, 3447 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 4025 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:08,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 4025 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-23 07:36:08,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-11-23 07:36:08,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 460. [2023-11-23 07:36:08,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 261 states have (on average 1.2567049808429118) internal successors, (328), 264 states have internal predecessors, (328), 166 states have call successors, (166), 29 states have call predecessors, (166), 31 states have return successors, (203), 167 states have call predecessors, (203), 164 states have call successors, (203) [2023-11-23 07:36:08,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 697 transitions. [2023-11-23 07:36:08,130 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 697 transitions. Word has length 250 [2023-11-23 07:36:08,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:08,132 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 697 transitions. [2023-11-23 07:36:08,133 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 07:36:08,133 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 697 transitions. [2023-11-23 07:36:08,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-23 07:36:08,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:08,136 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 07:36:08,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-23 07:36:08,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 07:36:08,352 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:08,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:08,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1434177179, now seen corresponding path program 1 times [2023-11-23 07:36:08,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:08,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365030350] [2023-11-23 07:36:08,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:08,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:08,462 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:08,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1843366958] [2023-11-23 07:36:08,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:08,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:08,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:08,464 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 07:36:08,466 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 07:36:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:09,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 4427 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 07:36:09,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:09,522 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 07:36:09,522 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:09,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:09,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365030350] [2023-11-23 07:36:09,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:09,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843366958] [2023-11-23 07:36:09,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843366958] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:09,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:09,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 07:36:09,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694966070] [2023-11-23 07:36:09,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:09,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:36:09,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:09,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:36:09,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:36:09,524 INFO L87 Difference]: Start difference. First operand 460 states and 697 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 07:36:11,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:11,006 INFO L93 Difference]: Finished difference Result 866 states and 1319 transitions. [2023-11-23 07:36:11,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:36:11,006 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 07:36:11,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:11,009 INFO L225 Difference]: With dead ends: 866 [2023-11-23 07:36:11,009 INFO L226 Difference]: Without dead ends: 483 [2023-11-23 07:36:11,011 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 07:36:11,011 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 28 mSDsluCounter, 2868 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3444 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:11,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3444 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-23 07:36:11,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-11-23 07:36:11,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 460. [2023-11-23 07:36:11,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 261 states have (on average 1.2528735632183907) internal successors, (327), 264 states have internal predecessors, (327), 166 states have call successors, (166), 29 states have call predecessors, (166), 31 states have return successors, (203), 167 states have call predecessors, (203), 164 states have call successors, (203) [2023-11-23 07:36:11,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 696 transitions. [2023-11-23 07:36:11,032 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 696 transitions. Word has length 250 [2023-11-23 07:36:11,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:11,032 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 696 transitions. [2023-11-23 07:36:11,032 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 07:36:11,032 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 696 transitions. [2023-11-23 07:36:11,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-23 07:36:11,033 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:11,034 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 07:36:11,055 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 07:36:11,248 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 07:36:11,248 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:11,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:11,249 INFO L85 PathProgramCache]: Analyzing trace with hash -759017053, now seen corresponding path program 1 times [2023-11-23 07:36:11,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:11,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494637357] [2023-11-23 07:36:11,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:11,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:11,326 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:11,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1579590036] [2023-11-23 07:36:11,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:11,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:11,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:11,328 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 07:36:11,354 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 07:36:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:12,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 4424 conjuncts, 95 conjunts are in the unsatisfiable core [2023-11-23 07:36:12,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:12,492 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 07:36:12,494 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 07:36:13,050 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-23 07:36:13,051 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:13,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:13,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494637357] [2023-11-23 07:36:13,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:13,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579590036] [2023-11-23 07:36:13,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579590036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:13,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:13,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-23 07:36:13,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921939894] [2023-11-23 07:36:13,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:13,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 07:36:13,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:13,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 07:36:13,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:36:13,052 INFO L87 Difference]: Start difference. First operand 460 states and 696 transitions. Second operand has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 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 07:36:17,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:17,184 INFO L93 Difference]: Finished difference Result 980 states and 1556 transitions. [2023-11-23 07:36:17,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 07:36:17,185 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 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 07:36:17,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:17,188 INFO L225 Difference]: With dead ends: 980 [2023-11-23 07:36:17,188 INFO L226 Difference]: Without dead ends: 551 [2023-11-23 07:36:17,191 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 07:36:17,192 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 310 mSDsluCounter, 1966 mSDsCounter, 0 mSdLazyCounter, 4451 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 2339 SdHoareTripleChecker+Invalid, 4669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 4451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:17,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 2339 Invalid, 4669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 4451 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-23 07:36:17,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-11-23 07:36:17,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 485. [2023-11-23 07:36:17,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 285 states have (on average 1.263157894736842) internal successors, (360), 287 states have internal predecessors, (360), 166 states have call successors, (166), 29 states have call predecessors, (166), 32 states have return successors, (220), 169 states have call predecessors, (220), 164 states have call successors, (220) [2023-11-23 07:36:17,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 746 transitions. [2023-11-23 07:36:17,216 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 746 transitions. Word has length 250 [2023-11-23 07:36:17,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:17,216 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 746 transitions. [2023-11-23 07:36:17,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 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 07:36:17,217 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 746 transitions. [2023-11-23 07:36:17,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-23 07:36:17,218 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:17,218 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 07:36:17,247 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 07:36:17,440 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 07:36:17,440 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:17,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:17,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1133530595, now seen corresponding path program 1 times [2023-11-23 07:36:17,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:17,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693409484] [2023-11-23 07:36:17,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:17,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:17,514 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:17,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312632402] [2023-11-23 07:36:17,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:17,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:17,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:17,525 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 07:36:17,529 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 07:36:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:18,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 4414 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 07:36:18,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:18,572 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 07:36:18,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:18,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:18,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693409484] [2023-11-23 07:36:18,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:18,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312632402] [2023-11-23 07:36:18,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312632402] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:18,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:18,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:36:18,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718025197] [2023-11-23 07:36:18,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:18,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:36:18,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:18,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:36:18,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:36:18,575 INFO L87 Difference]: Start difference. First operand 485 states and 746 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 07:36:18,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:18,761 INFO L93 Difference]: Finished difference Result 942 states and 1527 transitions. [2023-11-23 07:36:18,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:36:18,761 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 07:36:18,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:18,764 INFO L225 Difference]: With dead ends: 942 [2023-11-23 07:36:18,764 INFO L226 Difference]: Without dead ends: 488 [2023-11-23 07:36:18,766 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 07:36:18,767 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 7 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 07:36:18,767 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 07:36:18,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-11-23 07:36:18,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 485. [2023-11-23 07:36:18,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 285 states have (on average 1.2596491228070175) internal successors, (359), 287 states have internal predecessors, (359), 166 states have call successors, (166), 29 states have call predecessors, (166), 32 states have return successors, (220), 169 states have call predecessors, (220), 164 states have call successors, (220) [2023-11-23 07:36:18,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 745 transitions. [2023-11-23 07:36:18,789 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 745 transitions. Word has length 250 [2023-11-23 07:36:18,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:18,789 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 745 transitions. [2023-11-23 07:36:18,791 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 07:36:18,791 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 745 transitions. [2023-11-23 07:36:18,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-11-23 07:36:18,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:18,792 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 07:36:18,814 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 07:36:19,010 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 07:36:19,011 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:19,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:19,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1735675229, now seen corresponding path program 1 times [2023-11-23 07:36:19,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:19,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306273865] [2023-11-23 07:36:19,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:19,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:19,093 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:19,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [471217156] [2023-11-23 07:36:19,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:19,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:19,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:19,094 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 07:36:19,095 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 07:36:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:20,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 4444 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 07:36:20,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:20,399 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-23 07:36:20,400 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:20,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:20,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306273865] [2023-11-23 07:36:20,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:20,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471217156] [2023-11-23 07:36:20,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471217156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:20,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:20,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:36:20,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807563386] [2023-11-23 07:36:20,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:20,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:36:20,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:20,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:36:20,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:36:20,402 INFO L87 Difference]: Start difference. First operand 485 states and 745 transitions. Second operand has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-23 07:36:20,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:20,798 INFO L93 Difference]: Finished difference Result 887 states and 1371 transitions. [2023-11-23 07:36:20,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:36:20,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) Word has length 254 [2023-11-23 07:36:20,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:20,801 INFO L225 Difference]: With dead ends: 887 [2023-11-23 07:36:20,801 INFO L226 Difference]: Without dead ends: 468 [2023-11-23 07:36:20,803 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 07:36:20,803 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 2 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2038 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:20,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2038 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 07:36:20,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2023-11-23 07:36:20,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2023-11-23 07:36:20,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 273 states have (on average 1.2564102564102564) internal successors, (343), 276 states have internal predecessors, (343), 161 states have call successors, (161), 29 states have call predecessors, (161), 32 states have return successors, (212), 163 states have call predecessors, (212), 159 states have call successors, (212) [2023-11-23 07:36:20,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 716 transitions. [2023-11-23 07:36:20,826 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 716 transitions. Word has length 254 [2023-11-23 07:36:20,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:20,826 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 716 transitions. [2023-11-23 07:36:20,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-23 07:36:20,827 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 716 transitions. [2023-11-23 07:36:20,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-23 07:36:20,828 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:20,828 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 07:36:20,866 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 07:36:21,046 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 07:36:21,046 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:21,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:21,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1686650718, now seen corresponding path program 1 times [2023-11-23 07:36:21,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:21,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166479250] [2023-11-23 07:36:21,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:21,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:21,125 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:21,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [417168639] [2023-11-23 07:36:21,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:21,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:21,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:21,141 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 07:36:21,167 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 07:36:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:23,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 4484 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 07:36:23,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:23,067 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2023-11-23 07:36:23,067 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:23,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:23,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166479250] [2023-11-23 07:36:23,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:23,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417168639] [2023-11-23 07:36:23,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417168639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:23,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:23,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:36:23,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981248965] [2023-11-23 07:36:23,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:23,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:36:23,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:23,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:36:23,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:36:23,069 INFO L87 Difference]: Start difference. First operand 468 states and 716 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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 07:36:24,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:24,121 INFO L93 Difference]: Finished difference Result 961 states and 1497 transitions. [2023-11-23 07:36:24,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:36:24,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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 07:36:24,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:24,124 INFO L225 Difference]: With dead ends: 961 [2023-11-23 07:36:24,124 INFO L226 Difference]: Without dead ends: 524 [2023-11-23 07:36:24,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:36:24,127 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 21 mSDsluCounter, 2099 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:24,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2659 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 07:36:24,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-11-23 07:36:24,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 484. [2023-11-23 07:36:24,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 289 states have (on average 1.2560553633217992) internal successors, (363), 292 states have internal predecessors, (363), 161 states have call successors, (161), 29 states have call predecessors, (161), 32 states have return successors, (212), 163 states have call predecessors, (212), 159 states have call successors, (212) [2023-11-23 07:36:24,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 736 transitions. [2023-11-23 07:36:24,153 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 736 transitions. Word has length 264 [2023-11-23 07:36:24,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:24,153 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 736 transitions. [2023-11-23 07:36:24,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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 07:36:24,154 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 736 transitions. [2023-11-23 07:36:24,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-23 07:36:24,155 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:24,155 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 07:36:24,184 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 07:36:24,369 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 07:36:24,369 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:24,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:24,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1023884830, now seen corresponding path program 1 times [2023-11-23 07:36:24,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:24,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7969238] [2023-11-23 07:36:24,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:24,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:24,466 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:24,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [156731077] [2023-11-23 07:36:24,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:24,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:24,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:24,485 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 07:36:24,522 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 07:36:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:25,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 4478 conjuncts, 53 conjunts are in the unsatisfiable core [2023-11-23 07:36:25,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:25,954 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 07:36:26,185 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 07:36:26,185 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:26,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:26,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7969238] [2023-11-23 07:36:26,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:26,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156731077] [2023-11-23 07:36:26,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156731077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:26,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:26,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 07:36:26,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717900853] [2023-11-23 07:36:26,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:26,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 07:36:26,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:26,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 07:36:26,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:36:26,187 INFO L87 Difference]: Start difference. First operand 484 states and 736 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 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 07:36:30,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:30,452 INFO L93 Difference]: Finished difference Result 1033 states and 1641 transitions. [2023-11-23 07:36:30,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:36:30,453 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 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 07:36:30,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:30,457 INFO L225 Difference]: With dead ends: 1033 [2023-11-23 07:36:30,457 INFO L226 Difference]: Without dead ends: 572 [2023-11-23 07:36:30,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2023-11-23 07:36:30,462 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 283 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 3580 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1953 SdHoareTripleChecker+Invalid, 3794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 3580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:30,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 1953 Invalid, 3794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 3580 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-23 07:36:30,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2023-11-23 07:36:30,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 501. [2023-11-23 07:36:30,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 305 states have (on average 1.2459016393442623) internal successors, (380), 307 states have internal predecessors, (380), 161 states have call successors, (161), 29 states have call predecessors, (161), 33 states have return successors, (229), 165 states have call predecessors, (229), 159 states have call successors, (229) [2023-11-23 07:36:30,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 770 transitions. [2023-11-23 07:36:30,540 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 770 transitions. Word has length 264 [2023-11-23 07:36:30,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:30,540 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 770 transitions. [2023-11-23 07:36:30,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 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 07:36:30,541 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 770 transitions. [2023-11-23 07:36:30,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-23 07:36:30,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:30,542 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, 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] [2023-11-23 07:36:30,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-23 07:36:30,762 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 07:36:30,762 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:30,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:30,763 INFO L85 PathProgramCache]: Analyzing trace with hash 2087681244, now seen corresponding path program 1 times [2023-11-23 07:36:30,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:30,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157030628] [2023-11-23 07:36:30,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:30,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:30,845 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:30,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [176498478] [2023-11-23 07:36:30,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:30,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:30,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:30,846 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 07:36:30,864 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 07:36:32,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:32,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 4471 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 07:36:32,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:32,191 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 07:36:32,191 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:32,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:32,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157030628] [2023-11-23 07:36:32,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:32,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176498478] [2023-11-23 07:36:32,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176498478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:32,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:32,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:36:32,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012600075] [2023-11-23 07:36:32,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:32,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:36:32,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:32,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:36:32,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:36:32,194 INFO L87 Difference]: Start difference. First operand 501 states and 770 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 07:36:32,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:32,434 INFO L93 Difference]: Finished difference Result 1007 states and 1575 transitions. [2023-11-23 07:36:32,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:36:32,435 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 07:36:32,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:32,438 INFO L225 Difference]: With dead ends: 1007 [2023-11-23 07:36:32,438 INFO L226 Difference]: Without dead ends: 537 [2023-11-23 07:36:32,440 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 07:36:32,442 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 6 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:32,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2265 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:36:32,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2023-11-23 07:36:32,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 501. [2023-11-23 07:36:32,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 305 states have (on average 1.2524590163934426) internal successors, (382), 307 states have internal predecessors, (382), 161 states have call successors, (161), 29 states have call predecessors, (161), 33 states have return successors, (229), 165 states have call predecessors, (229), 159 states have call successors, (229) [2023-11-23 07:36:32,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 772 transitions. [2023-11-23 07:36:32,468 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 772 transitions. Word has length 264 [2023-11-23 07:36:32,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:32,468 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 772 transitions. [2023-11-23 07:36:32,469 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 07:36:32,469 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 772 transitions. [2023-11-23 07:36:32,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-23 07:36:32,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:32,470 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, 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] [2023-11-23 07:36:32,492 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 07:36:32,688 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 07:36:32,689 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:32,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:32,689 INFO L85 PathProgramCache]: Analyzing trace with hash -2072648356, now seen corresponding path program 1 times [2023-11-23 07:36:32,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:32,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201504292] [2023-11-23 07:36:32,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:32,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:32,765 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:32,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [198967310] [2023-11-23 07:36:32,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:32,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:32,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:32,767 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 07:36:32,771 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 07:36:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:33,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 4473 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 07:36:33,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:33,843 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2023-11-23 07:36:33,843 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:33,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:33,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201504292] [2023-11-23 07:36:33,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:33,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198967310] [2023-11-23 07:36:33,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198967310] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:33,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:33,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:36:33,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368984346] [2023-11-23 07:36:33,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:33,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:36:33,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:33,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:36:33,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:36:33,846 INFO L87 Difference]: Start difference. First operand 501 states and 772 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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 07:36:34,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:36:34,080 INFO L93 Difference]: Finished difference Result 967 states and 1527 transitions. [2023-11-23 07:36:34,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:36:34,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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 07:36:34,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:36:34,084 INFO L225 Difference]: With dead ends: 967 [2023-11-23 07:36:34,084 INFO L226 Difference]: Without dead ends: 497 [2023-11-23 07:36:34,087 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 07:36:34,087 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 2 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:36:34,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1685 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:36:34,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-11-23 07:36:34,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 478. [2023-11-23 07:36:34,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 283 states have (on average 1.2367491166077738) internal successors, (350), 286 states have internal predecessors, (350), 161 states have call successors, (161), 29 states have call predecessors, (161), 32 states have return successors, (212), 163 states have call predecessors, (212), 159 states have call successors, (212) [2023-11-23 07:36:34,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 723 transitions. [2023-11-23 07:36:34,173 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 723 transitions. Word has length 264 [2023-11-23 07:36:34,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:36:34,174 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 723 transitions. [2023-11-23 07:36:34,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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 07:36:34,174 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 723 transitions. [2023-11-23 07:36:34,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-23 07:36:34,175 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:36:34,175 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 07:36:34,197 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 07:36:34,395 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 07:36:34,395 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:36:34,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:36:34,396 INFO L85 PathProgramCache]: Analyzing trace with hash 363607902, now seen corresponding path program 1 times [2023-11-23 07:36:34,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:36:34,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409961987] [2023-11-23 07:36:34,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:34,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:36:34,479 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:36:34,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1943689580] [2023-11-23 07:36:34,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:36:34,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:36:34,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:36:34,482 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 07:36:34,507 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 07:36:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:36:42,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 4468 conjuncts, 92 conjunts are in the unsatisfiable core [2023-11-23 07:36:42,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:36:42,511 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 07:36:42,513 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 07:36:43,089 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-11-23 07:36:43,089 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:36:43,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:36:43,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409961987] [2023-11-23 07:36:43,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:36:43,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943689580] [2023-11-23 07:36:43,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943689580] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:36:43,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:36:43,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-23 07:36:43,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445089373] [2023-11-23 07:36:43,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:36:43,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 07:36:43,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:36:43,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 07:36:43,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:36:43,090 INFO L87 Difference]: Start difference. First operand 478 states and 723 transitions. Second operand has 15 states, 15 states have (on average 7.666666666666667) internal successors, (115), 15 states have internal predecessors, (115), 10 states have call successors, (32), 4 states have call predecessors, (32), 5 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2023-11-23 07:36:45,884 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 07:36:48,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:36:50,068 WARN L539 Checker$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 07:36:52,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:36:54,136 WARN L539 Checker$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 07:36:56,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:36:58,206 WARN L539 Checker$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 07:37:00,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:37:02,351 WARN L539 Checker$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 07:37:07,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:37:10,929 WARN L539 Checker$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 07:37:13,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:37:15,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:37:18,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:37:20,405 WARN L539 Checker$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 07:37:22,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 07:37:25,052 WARN L539 Checker$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 07:37:27,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:37:29,115 WARN L539 Checker$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 07:37:29,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:37:29,116 INFO L93 Difference]: Finished difference Result 1498 states and 2332 transitions. [2023-11-23 07:37:29,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-23 07:37:29,117 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.666666666666667) internal successors, (115), 15 states have internal predecessors, (115), 10 states have call successors, (32), 4 states have call predecessors, (32), 5 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 264 [2023-11-23 07:37:29,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:37:29,123 INFO L225 Difference]: With dead ends: 1498 [2023-11-23 07:37:29,123 INFO L226 Difference]: Without dead ends: 1045 [2023-11-23 07:37:29,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 248 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=254, Invalid=936, Unknown=0, NotChecked=0, Total=1190 [2023-11-23 07:37:29,126 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 785 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 4957 mSolverCounterSat, 741 mSolverCounterUnsat, 44 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 2727 SdHoareTripleChecker+Invalid, 5742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 741 IncrementalHoareTripleChecker+Valid, 4957 IncrementalHoareTripleChecker+Invalid, 44 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:37:29,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 2727 Invalid, 5742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [741 Valid, 4957 Invalid, 44 Unknown, 0 Unchecked, 45.4s Time] [2023-11-23 07:37:29,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2023-11-23 07:37:29,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1006. [2023-11-23 07:37:29,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 607 states have (on average 1.242174629324547) internal successors, (754), 613 states have internal predecessors, (754), 333 states have call successors, (333), 54 states have call predecessors, (333), 64 states have return successors, (482), 340 states have call predecessors, (482), 330 states have call successors, (482) [2023-11-23 07:37:29,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1569 transitions. [2023-11-23 07:37:29,180 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1569 transitions. Word has length 264 [2023-11-23 07:37:29,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:37:29,180 INFO L495 AbstractCegarLoop]: Abstraction has 1006 states and 1569 transitions. [2023-11-23 07:37:29,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.666666666666667) internal successors, (115), 15 states have internal predecessors, (115), 10 states have call successors, (32), 4 states have call predecessors, (32), 5 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2023-11-23 07:37:29,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1569 transitions. [2023-11-23 07:37:29,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-11-23 07:37:29,182 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:37:29,182 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:29,219 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 07:37:29,400 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 07:37:29,400 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:37:29,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:37:29,400 INFO L85 PathProgramCache]: Analyzing trace with hash -688479374, now seen corresponding path program 1 times [2023-11-23 07:37:29,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:37:29,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655733114] [2023-11-23 07:37:29,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:29,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:37:29,473 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:37:29,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1872114020] [2023-11-23 07:37:29,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:37:29,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:37:29,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:37:29,475 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 07:37:29,476 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 07:37:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:37:31,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 4488 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-23 07:37:31,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:37:31,751 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 07:37:31,828 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 17 treesize of output 13 [2023-11-23 07:37:31,832 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 19 treesize of output 15 [2023-11-23 07:37:33,704 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2023-11-23 07:37:33,705 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:37:33,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:37:33,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655733114] [2023-11-23 07:37:33,705 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:37:33,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872114020] [2023-11-23 07:37:33,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872114020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:37:33,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:37:33,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-23 07:37:33,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090589210] [2023-11-23 07:37:33,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:37:33,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 07:37:33,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:37:33,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 07:37:33,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=197, Unknown=1, NotChecked=0, Total=240 [2023-11-23 07:37:33,707 INFO L87 Difference]: Start difference. First operand 1006 states and 1569 transitions. Second operand has 16 states, 16 states have (on average 7.125) internal successors, (114), 14 states have internal predecessors, (114), 8 states have call successors, (33), 4 states have call predecessors, (33), 5 states have return successors, (31), 7 states have call predecessors, (31), 8 states have call successors, (31) [2023-11-23 07:37:38,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:37:40,526 WARN L539 Checker$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 07:37:42,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:37:44,553 WARN L539 Checker$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 07:37:46,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:37:48,591 WARN L539 Checker$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 07:37:55,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:37:57,864 WARN L539 Checker$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 07:37:59,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:38:01,871 WARN L539 Checker$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 07:38:03,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:38:05,879 WARN L539 Checker$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 07:38:07,883 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 07:38:13,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:13,153 INFO L93 Difference]: Finished difference Result 2981 states and 4939 transitions. [2023-11-23 07:38:13,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-23 07:38:13,153 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.125) internal successors, (114), 14 states have internal predecessors, (114), 8 states have call successors, (33), 4 states have call predecessors, (33), 5 states have return successors, (31), 7 states have call predecessors, (31), 8 states have call successors, (31) Word has length 269 [2023-11-23 07:38:13,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:13,191 INFO L225 Difference]: With dead ends: 2981 [2023-11-23 07:38:13,191 INFO L226 Difference]: Without dead ends: 2032 [2023-11-23 07:38:13,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=251, Invalid=1151, Unknown=4, NotChecked=0, Total=1406 [2023-11-23 07:38:13,201 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 804 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 6381 mSolverCounterSat, 744 mSolverCounterUnsat, 39 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 7164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 744 IncrementalHoareTripleChecker+Valid, 6381 IncrementalHoareTripleChecker+Invalid, 39 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:13,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 2950 Invalid, 7164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [744 Valid, 6381 Invalid, 39 Unknown, 0 Unchecked, 35.2s Time] [2023-11-23 07:38:13,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2032 states. [2023-11-23 07:38:13,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2032 to 2005. [2023-11-23 07:38:13,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2005 states, 1236 states have (on average 1.2370550161812297) internal successors, (1529), 1250 states have internal predecessors, (1529), 643 states have call successors, (643), 100 states have call predecessors, (643), 124 states have return successors, (1067), 658 states have call predecessors, (1067), 638 states have call successors, (1067) [2023-11-23 07:38:13,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2005 states to 2005 states and 3239 transitions. [2023-11-23 07:38:13,346 INFO L78 Accepts]: Start accepts. Automaton has 2005 states and 3239 transitions. Word has length 269 [2023-11-23 07:38:13,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:13,346 INFO L495 AbstractCegarLoop]: Abstraction has 2005 states and 3239 transitions. [2023-11-23 07:38:13,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.125) internal successors, (114), 14 states have internal predecessors, (114), 8 states have call successors, (33), 4 states have call predecessors, (33), 5 states have return successors, (31), 7 states have call predecessors, (31), 8 states have call successors, (31) [2023-11-23 07:38:13,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2005 states and 3239 transitions. [2023-11-23 07:38:13,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-11-23 07:38:13,349 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:13,349 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:13,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-23 07:38:13,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:13,564 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:13,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:13,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1504526604, now seen corresponding path program 1 times [2023-11-23 07:38:13,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:13,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463707605] [2023-11-23 07:38:13,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:13,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:13,647 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:13,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [446562224] [2023-11-23 07:38:13,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:13,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:13,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:13,649 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:38:13,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-23 07:38:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:38:16,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 4485 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 07:38:16,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:16,213 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-11-23 07:38:16,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:16,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:16,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463707605] [2023-11-23 07:38:16,213 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:16,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446562224] [2023-11-23 07:38:16,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446562224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:16,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:16,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:38:16,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252642071] [2023-11-23 07:38:16,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:16,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:38:16,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:16,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:38:16,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:38:16,219 INFO L87 Difference]: Start difference. First operand 2005 states and 3239 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, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-23 07:38:16,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:16,577 INFO L93 Difference]: Finished difference Result 3922 states and 6478 transitions. [2023-11-23 07:38:16,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 07:38:16,578 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, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 269 [2023-11-23 07:38:16,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:16,592 INFO L225 Difference]: With dead ends: 3922 [2023-11-23 07:38:16,592 INFO L226 Difference]: Without dead ends: 2019 [2023-11-23 07:38:16,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:38:16,620 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 6 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:16,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1671 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:38:16,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019 states. [2023-11-23 07:38:16,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2019 to 2007. [2023-11-23 07:38:16,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1238 states have (on average 1.2366720516962844) internal successors, (1531), 1252 states have internal predecessors, (1531), 643 states have call successors, (643), 100 states have call predecessors, (643), 124 states have return successors, (1067), 658 states have call predecessors, (1067), 638 states have call successors, (1067) [2023-11-23 07:38:16,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 3241 transitions. [2023-11-23 07:38:16,832 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 3241 transitions. Word has length 269 [2023-11-23 07:38:16,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:16,832 INFO L495 AbstractCegarLoop]: Abstraction has 2007 states and 3241 transitions. [2023-11-23 07:38:16,832 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, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-23 07:38:16,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 3241 transitions. [2023-11-23 07:38:16,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-11-23 07:38:16,835 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:16,835 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:16,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-23 07:38:17,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:17,060 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:17,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:17,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1562284565, now seen corresponding path program 1 times [2023-11-23 07:38:17,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:17,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219955809] [2023-11-23 07:38:17,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:17,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:17,137 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:17,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1485391893] [2023-11-23 07:38:17,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:17,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:17,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:17,138 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:38:17,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-23 07:38:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:38:18,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 4488 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-23 07:38:18,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:18,418 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 261 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-23 07:38:18,418 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:18,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:18,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219955809] [2023-11-23 07:38:18,419 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:18,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485391893] [2023-11-23 07:38:18,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485391893] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:18,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:18,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 07:38:18,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545271667] [2023-11-23 07:38:18,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:18,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:38:18,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:18,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:38:18,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:38:18,421 INFO L87 Difference]: Start difference. First operand 2007 states and 3241 transitions. Second operand has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 3 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-23 07:38:19,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:19,312 INFO L93 Difference]: Finished difference Result 3128 states and 5311 transitions. [2023-11-23 07:38:19,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:38:19,312 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 3 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 269 [2023-11-23 07:38:19,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:19,324 INFO L225 Difference]: With dead ends: 3128 [2023-11-23 07:38:19,324 INFO L226 Difference]: Without dead ends: 2098 [2023-11-23 07:38:19,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 260 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 07:38:19,329 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 5 mSDsluCounter, 4248 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:19,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4791 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 07:38:19,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2023-11-23 07:38:19,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 2035. [2023-11-23 07:38:19,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2035 states, 1258 states have (on average 1.2329093799682036) internal successors, (1551), 1276 states have internal predecessors, (1551), 643 states have call successors, (643), 100 states have call predecessors, (643), 132 states have return successors, (1153), 662 states have call predecessors, (1153), 638 states have call successors, (1153) [2023-11-23 07:38:19,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 3347 transitions. [2023-11-23 07:38:19,498 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 3347 transitions. Word has length 269 [2023-11-23 07:38:19,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:19,498 INFO L495 AbstractCegarLoop]: Abstraction has 2035 states and 3347 transitions. [2023-11-23 07:38:19,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 3 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-23 07:38:19,499 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 3347 transitions. [2023-11-23 07:38:19,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-11-23 07:38:19,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:19,501 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:19,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-23 07:38:19,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-23 07:38:19,716 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:19,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:19,717 INFO L85 PathProgramCache]: Analyzing trace with hash -2105194786, now seen corresponding path program 1 times [2023-11-23 07:38:19,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:19,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874167596] [2023-11-23 07:38:19,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:19,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:19,791 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:19,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [639546383] [2023-11-23 07:38:19,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:19,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:19,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:19,793 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:38:19,807 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 07:38:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:38:22,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 4492 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 07:38:22,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:22,475 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 236 proven. 1 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-11-23 07:38:22,476 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:38:22,657 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2023-11-23 07:38:22,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:22,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874167596] [2023-11-23 07:38:22,658 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:22,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639546383] [2023-11-23 07:38:22,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639546383] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:38:22,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:38:22,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-23 07:38:22,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691587498] [2023-11-23 07:38:22,658 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 07:38:22,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:38:22,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:22,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:38:22,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:38:22,660 INFO L87 Difference]: Start difference. First operand 2035 states and 3347 transitions. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-11-23 07:38:22,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:22,997 INFO L93 Difference]: Finished difference Result 4079 states and 7117 transitions. [2023-11-23 07:38:22,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:38:22,998 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 271 [2023-11-23 07:38:22,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:23,010 INFO L225 Difference]: With dead ends: 4079 [2023-11-23 07:38:23,010 INFO L226 Difference]: Without dead ends: 2083 [2023-11-23 07:38:23,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:38:23,021 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 22 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:23,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1688 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:38:23,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2023-11-23 07:38:23,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 2059. [2023-11-23 07:38:23,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2059 states, 1282 states have (on average 1.2379095163806553) internal successors, (1587), 1300 states have internal predecessors, (1587), 643 states have call successors, (643), 100 states have call predecessors, (643), 132 states have return successors, (1153), 662 states have call predecessors, (1153), 638 states have call successors, (1153) [2023-11-23 07:38:23,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2059 states to 2059 states and 3383 transitions. [2023-11-23 07:38:23,152 INFO L78 Accepts]: Start accepts. Automaton has 2059 states and 3383 transitions. Word has length 271 [2023-11-23 07:38:23,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:23,152 INFO L495 AbstractCegarLoop]: Abstraction has 2059 states and 3383 transitions. [2023-11-23 07:38:23,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-11-23 07:38:23,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2059 states and 3383 transitions. [2023-11-23 07:38:23,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-11-23 07:38:23,155 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:23,155 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:23,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-23 07:38:23,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-23 07:38:23,376 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:23,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:23,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1024552860, now seen corresponding path program 2 times [2023-11-23 07:38:23,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:23,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674073907] [2023-11-23 07:38:23,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:23,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:23,476 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:23,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [929667021] [2023-11-23 07:38:23,477 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:38:23,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:23,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:23,493 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:38:23,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-23 07:38:25,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:38:25,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:38:25,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 4513 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 07:38:25,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:25,659 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 236 proven. 16 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-11-23 07:38:25,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:38:25,927 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2023-11-23 07:38:25,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:25,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674073907] [2023-11-23 07:38:25,927 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:25,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929667021] [2023-11-23 07:38:25,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929667021] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:38:25,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:38:25,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-23 07:38:25,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637589204] [2023-11-23 07:38:25,928 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 07:38:25,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 07:38:25,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:25,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 07:38:25,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:38:25,930 INFO L87 Difference]: Start difference. First operand 2059 states and 3383 transitions. Second operand has 14 states, 14 states have (on average 10.285714285714286) internal successors, (144), 14 states have internal predecessors, (144), 2 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-11-23 07:38:26,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:26,884 INFO L93 Difference]: Finished difference Result 4199 states and 7429 transitions. [2023-11-23 07:38:26,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 07:38:26,885 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.285714285714286) internal successors, (144), 14 states have internal predecessors, (144), 2 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 277 [2023-11-23 07:38:26,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:26,898 INFO L225 Difference]: With dead ends: 4199 [2023-11-23 07:38:26,898 INFO L226 Difference]: Without dead ends: 2179 [2023-11-23 07:38:26,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 540 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2023-11-23 07:38:26,910 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 69 mSDsluCounter, 4490 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 5058 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:26,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 5058 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 07:38:26,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states. [2023-11-23 07:38:27,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 2107. [2023-11-23 07:38:27,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2107 states, 1330 states have (on average 1.2473684210526317) internal successors, (1659), 1348 states have internal predecessors, (1659), 643 states have call successors, (643), 100 states have call predecessors, (643), 132 states have return successors, (1153), 662 states have call predecessors, (1153), 638 states have call successors, (1153) [2023-11-23 07:38:27,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2107 states to 2107 states and 3455 transitions. [2023-11-23 07:38:27,115 INFO L78 Accepts]: Start accepts. Automaton has 2107 states and 3455 transitions. Word has length 277 [2023-11-23 07:38:27,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:27,115 INFO L495 AbstractCegarLoop]: Abstraction has 2107 states and 3455 transitions. [2023-11-23 07:38:27,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.285714285714286) internal successors, (144), 14 states have internal predecessors, (144), 2 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-11-23 07:38:27,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2107 states and 3455 transitions. [2023-11-23 07:38:27,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2023-11-23 07:38:27,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:27,119 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:27,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-23 07:38:27,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-23 07:38:27,336 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:27,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:27,337 INFO L85 PathProgramCache]: Analyzing trace with hash -510751336, now seen corresponding path program 3 times [2023-11-23 07:38:27,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:27,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140922152] [2023-11-23 07:38:27,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:27,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:27,417 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:27,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1036374854] [2023-11-23 07:38:27,418 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 07:38:27,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:27,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:27,419 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:38:27,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-23 07:38:29,805 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2023-11-23 07:38:29,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:38:29,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 3668 conjuncts, 86 conjunts are in the unsatisfiable core [2023-11-23 07:38:29,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:30,349 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2023-11-23 07:38:30,349 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:38:30,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:30,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140922152] [2023-11-23 07:38:30,350 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:30,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036374854] [2023-11-23 07:38:30,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036374854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:38:30,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:38:30,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-11-23 07:38:30,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016295809] [2023-11-23 07:38:30,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:38:30,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-23 07:38:30,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:30,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-23 07:38:30,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:38:30,351 INFO L87 Difference]: Start difference. First operand 2107 states and 3455 transitions. Second operand has 17 states, 15 states have (on average 8.6) internal successors, (129), 17 states have internal predecessors, (129), 10 states have call successors, (35), 4 states have call predecessors, (35), 5 states have return successors, (33), 8 states have call predecessors, (33), 10 states have call successors, (33) [2023-11-23 07:38:41,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:41,020 INFO L93 Difference]: Finished difference Result 4152 states and 6908 transitions. [2023-11-23 07:38:41,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-23 07:38:41,020 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 8.6) internal successors, (129), 17 states have internal predecessors, (129), 10 states have call successors, (35), 4 states have call predecessors, (35), 5 states have return successors, (33), 8 states have call predecessors, (33), 10 states have call successors, (33) Word has length 289 [2023-11-23 07:38:41,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:41,053 INFO L225 Difference]: With dead ends: 4152 [2023-11-23 07:38:41,053 INFO L226 Difference]: Without dead ends: 3136 [2023-11-23 07:38:41,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 281 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=241, Invalid=1091, Unknown=0, NotChecked=0, Total=1332 [2023-11-23 07:38:41,061 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 563 mSDsluCounter, 3303 mSDsCounter, 0 mSdLazyCounter, 6992 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 3943 SdHoareTripleChecker+Invalid, 7492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 6992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:41,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 3943 Invalid, 7492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 6992 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2023-11-23 07:38:41,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3136 states. [2023-11-23 07:38:41,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3136 to 2526. [2023-11-23 07:38:41,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2526 states, 1588 states have (on average 1.25) internal successors, (1985), 1608 states have internal predecessors, (1985), 782 states have call successors, (782), 121 states have call predecessors, (782), 154 states have return successors, (1329), 801 states have call predecessors, (1329), 776 states have call successors, (1329) [2023-11-23 07:38:41,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2526 states to 2526 states and 4096 transitions. [2023-11-23 07:38:41,411 INFO L78 Accepts]: Start accepts. Automaton has 2526 states and 4096 transitions. Word has length 289 [2023-11-23 07:38:41,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:41,412 INFO L495 AbstractCegarLoop]: Abstraction has 2526 states and 4096 transitions. [2023-11-23 07:38:41,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 8.6) internal successors, (129), 17 states have internal predecessors, (129), 10 states have call successors, (35), 4 states have call predecessors, (35), 5 states have return successors, (33), 8 states have call predecessors, (33), 10 states have call successors, (33) [2023-11-23 07:38:41,412 INFO L276 IsEmpty]: Start isEmpty. Operand 2526 states and 4096 transitions. [2023-11-23 07:38:41,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-11-23 07:38:41,415 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:41,415 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:38:41,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-23 07:38:41,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-23 07:38:41,634 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:41,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:41,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1236439639, now seen corresponding path program 1 times [2023-11-23 07:38:41,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:41,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773101695] [2023-11-23 07:38:41,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:41,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:41,712 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:41,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1209904470] [2023-11-23 07:38:41,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:41,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:41,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:41,713 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:38:41,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-23 07:38:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:38:44,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 4556 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-23 07:38:44,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:38:44,555 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 236 proven. 100 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-11-23 07:38:44,555 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:38:45,084 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2023-11-23 07:38:45,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:38:45,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773101695] [2023-11-23 07:38:45,084 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:38:45,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209904470] [2023-11-23 07:38:45,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209904470] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:38:45,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:38:45,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-23 07:38:45,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307306196] [2023-11-23 07:38:45,085 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 07:38:45,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-23 07:38:45,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:38:45,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-23 07:38:45,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-23 07:38:45,087 INFO L87 Difference]: Start difference. First operand 2526 states and 4096 transitions. Second operand has 26 states, 26 states have (on average 6.538461538461538) internal successors, (170), 26 states have internal predecessors, (170), 2 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-11-23 07:38:48,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:38:48,396 INFO L93 Difference]: Finished difference Result 5355 states and 9582 transitions. [2023-11-23 07:38:48,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-23 07:38:48,397 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.538461538461538) internal successors, (170), 26 states have internal predecessors, (170), 2 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 291 [2023-11-23 07:38:48,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:38:48,412 INFO L225 Difference]: With dead ends: 5355 [2023-11-23 07:38:48,412 INFO L226 Difference]: Without dead ends: 2862 [2023-11-23 07:38:48,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 556 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=479, Invalid=853, Unknown=0, NotChecked=0, Total=1332 [2023-11-23 07:38:48,423 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 245 mSDsluCounter, 9142 mSDsCounter, 0 mSdLazyCounter, 1547 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 9722 SdHoareTripleChecker+Invalid, 1555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:38:48,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 9722 Invalid, 1555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1547 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-23 07:38:48,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2862 states. [2023-11-23 07:38:48,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2862 to 2646. [2023-11-23 07:38:48,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2646 states, 1708 states have (on average 1.2675644028103044) internal successors, (2165), 1728 states have internal predecessors, (2165), 782 states have call successors, (782), 121 states have call predecessors, (782), 154 states have return successors, (1329), 801 states have call predecessors, (1329), 776 states have call successors, (1329) [2023-11-23 07:38:48,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 4276 transitions. [2023-11-23 07:38:48,626 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 4276 transitions. Word has length 291 [2023-11-23 07:38:48,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:38:48,626 INFO L495 AbstractCegarLoop]: Abstraction has 2646 states and 4276 transitions. [2023-11-23 07:38:48,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.538461538461538) internal successors, (170), 26 states have internal predecessors, (170), 2 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-11-23 07:38:48,626 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 4276 transitions. [2023-11-23 07:38:48,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-11-23 07:38:48,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:38:48,630 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, 1, 1] [2023-11-23 07:38:48,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-23 07:38:48,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-23 07:38:48,848 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:38:48,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:38:48,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1504165359, now seen corresponding path program 1 times [2023-11-23 07:38:48,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:38:48,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445677184] [2023-11-23 07:38:48,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:48,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:38:48,926 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:38:48,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [346346909] [2023-11-23 07:38:48,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:38:48,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:38:48,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:38:48,941 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:38:49,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-23 07:39:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:16,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 4469 conjuncts, 107 conjunts are in the unsatisfiable core [2023-11-23 07:39:16,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:16,953 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 25 treesize of output 13 [2023-11-23 07:39:16,957 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 07:39:19,006 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 23 treesize of output 11 [2023-11-23 07:39:19,012 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 19 treesize of output 18 [2023-11-23 07:39:21,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-23 07:39:31,533 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 298 proven. 6 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-11-23 07:39:31,533 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:39:34,151 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 10 treesize of output 4 [2023-11-23 07:39:34,154 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 10 treesize of output 4 [2023-11-23 07:39:34,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:34,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445677184] [2023-11-23 07:39:34,344 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:34,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346346909] [2023-11-23 07:39:34,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346346909] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:39:34,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:39:34,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2023-11-23 07:39:34,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91201915] [2023-11-23 07:39:34,346 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 07:39:34,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-23 07:39:34,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:34,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-23 07:39:34,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=665, Unknown=5, NotChecked=0, Total=756 [2023-11-23 07:39:34,348 INFO L87 Difference]: Start difference. First operand 2646 states and 4276 transitions. Second operand has 19 states, 17 states have (on average 7.470588235294118) internal successors, (127), 18 states have internal predecessors, (127), 12 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) [2023-11-23 07:39:46,458 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] Killed by 15