./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_push_harness.i --full-output --preprocessor.use.memory.slicer false --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version abd6749d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_push_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 08:59:42,721 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 08:59:42,788 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 08:59:42,793 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 08:59:42,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 08:59:42,840 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 08:59:42,841 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 08:59:42,841 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 08:59:42,842 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 08:59:42,844 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 08:59:42,845 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 08:59:42,845 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 08:59:42,846 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 08:59:42,847 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 08:59:42,847 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 08:59:42,847 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 08:59:42,847 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 08:59:42,861 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 08:59:42,862 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 08:59:42,862 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 08:59:42,872 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 08:59:42,872 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 08:59:42,872 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 08:59:42,873 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 08:59:42,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 08:59:42,873 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 08:59:42,873 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 08:59:42,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 08:59:42,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 08:59:42,874 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 08:59:42,874 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 08:59:42,875 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 08:59:42,875 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 08:59:42,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 08:59:42,876 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 08:59:42,876 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 08:59:42,876 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 08:59:42,876 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 08:59:42,876 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 08:59:42,877 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-23 08:59:43,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 08:59:43,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 08:59:43,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 08:59:43,124 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 08:59:43,124 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 08:59:43,125 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_push_harness.i [2023-11-23 08:59:44,083 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 08:59:44,466 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 08:59:44,467 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_push_harness.i [2023-11-23 08:59:44,497 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/528205a2c/b6b8266e13e1475eb7f95104c37d5c18/FLAG9e03ab489 [2023-11-23 08:59:44,509 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/528205a2c/b6b8266e13e1475eb7f95104c37d5c18 [2023-11-23 08:59:44,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 08:59:44,513 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 08:59:44,515 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 08:59:44,515 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 08:59:44,519 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 08:59:44,519 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:59:44" (1/1) ... [2023-11-23 08:59:44,520 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34174089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:44, skipping insertion in model container [2023-11-23 08:59:44,520 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:59:44" (1/1) ... [2023-11-23 08:59:44,603 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 08:59:44,782 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2023-11-23 08:59:44,790 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2023-11-23 08:59:45,336 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,340 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,340 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,341 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,342 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,351 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,351 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,352 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,353 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,354 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,354 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,355 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,355 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,657 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 08:59:45,658 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 08:59:45,659 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 08:59:45,659 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 08:59:45,660 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 08:59:45,661 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 08:59:45,661 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 08:59:45,661 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 08:59:45,662 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 08:59:45,665 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 08:59:45,775 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,778 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,841 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,842 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,843 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,843 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,843 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,845 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,845 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,846 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,847 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,847 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,847 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,848 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,849 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,853 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,853 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,854 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,854 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,859 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,860 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,869 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,871 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,871 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:45,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 08:59:45,937 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 08:59:45,954 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2023-11-23 08:59:45,954 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2023-11-23 08:59:45,999 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,000 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,000 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,001 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,001 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,009 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,009 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,011 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,011 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,011 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,012 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,013 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,013 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,043 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 08:59:46,044 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 08:59:46,044 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 08:59:46,045 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 08:59:46,046 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 08:59:46,046 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 08:59:46,046 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 08:59:46,047 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 08:59:46,047 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 08:59:46,047 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 08:59:46,082 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,085 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7771-7782] [2023-11-23 08:59:46,173 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,174 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,174 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,174 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,175 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,175 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,175 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,175 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,176 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,176 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,176 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,176 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,176 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,177 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,177 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,177 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,178 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,179 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,179 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,184 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,184 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,185 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:46,192 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 08:59:46,346 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:46,347 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:46,347 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:46,347 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:46,347 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:46,347 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:46,347 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:46,347 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:46,347 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:46,348 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:46,360 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:46,360 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:46,360 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:46,360 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:46,361 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:46,367 INFO L206 MainTranslator]: Completed translation [2023-11-23 08:59:46,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:46 WrapperNode [2023-11-23 08:59:46,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 08:59:46,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 08:59:46,368 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 08:59:46,368 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 08:59:46,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:46" (1/1) ... [2023-11-23 08:59:46,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:46" (1/1) ... [2023-11-23 08:59:46,507 INFO L138 Inliner]: procedures = 696, calls = 1880, calls flagged for inlining = 60, calls inlined = 19, statements flattened = 1165 [2023-11-23 08:59:46,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 08:59:46,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 08:59:46,509 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 08:59:46,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 08:59:46,516 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:46" (1/1) ... [2023-11-23 08:59:46,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:46" (1/1) ... [2023-11-23 08:59:46,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:46" (1/1) ... [2023-11-23 08:59:46,536 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:46" (1/1) ... [2023-11-23 08:59:46,580 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:46" (1/1) ... [2023-11-23 08:59:46,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:46" (1/1) ... [2023-11-23 08:59:46,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:46" (1/1) ... [2023-11-23 08:59:46,614 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:46" (1/1) ... [2023-11-23 08:59:46,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 08:59:46,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 08:59:46,634 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 08:59:46,634 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 08:59:46,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:46" (1/1) ... [2023-11-23 08:59:46,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 08:59:46,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:59:46,668 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 08:59:46,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 08:59:46,729 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-23 08:59:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-23 08:59:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2023-11-23 08:59:46,730 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2023-11-23 08:59:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-23 08:59:46,730 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-23 08:59:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 08:59:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-23 08:59:46,730 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-23 08:59:46,731 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-23 08:59:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-23 08:59:46,731 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 08:59:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 08:59:46,731 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-23 08:59:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-23 08:59:46,731 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-23 08:59:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-23 08:59:46,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 08:59:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 08:59:46,732 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 08:59:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 08:59:46,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 08:59:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 08:59:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 08:59:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 08:59:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-23 08:59:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-23 08:59:46,733 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-23 08:59:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-23 08:59:46,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 08:59:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 08:59:46,734 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 08:59:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 08:59:46,734 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 08:59:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 08:59:46,735 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-23 08:59:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-23 08:59:46,735 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-23 08:59:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-23 08:59:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-11-23 08:59:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-11-23 08:59:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-23 08:59:46,738 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-23 08:59:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 08:59:46,738 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 08:59:46,739 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 08:59:46,739 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 08:59:46,739 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-23 08:59:46,739 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-23 08:59:46,739 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-11-23 08:59:46,743 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-11-23 08:59:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2023-11-23 08:59:46,744 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2023-11-23 08:59:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 08:59:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-23 08:59:46,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-23 08:59:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 08:59:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 08:59:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-23 08:59:46,745 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-23 08:59:46,745 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 08:59:46,745 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 08:59:46,745 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 08:59:46,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 08:59:46,745 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-23 08:59:46,745 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-23 08:59:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 08:59:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-23 08:59:46,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-23 08:59:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2023-11-23 08:59:46,746 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2023-11-23 08:59:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 08:59:46,746 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 08:59:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 08:59:46,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 08:59:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 08:59:47,063 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 08:59:47,065 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 08:59:47,990 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 08:59:48,162 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 08:59:48,163 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-23 08:59:48,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:59:48 BoogieIcfgContainer [2023-11-23 08:59:48,163 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 08:59:48,165 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 08:59:48,165 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 08:59:48,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 08:59:48,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:59:44" (1/3) ... [2023-11-23 08:59:48,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652c1412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:59:48, skipping insertion in model container [2023-11-23 08:59:48,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:46" (2/3) ... [2023-11-23 08:59:48,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652c1412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:59:48, skipping insertion in model container [2023-11-23 08:59:48,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:59:48" (3/3) ... [2023-11-23 08:59:48,171 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_harness.i [2023-11-23 08:59:48,184 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 08:59:48,185 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 08:59:48,243 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 08:59:48,251 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;@1a918470, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 08:59:48,252 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 08:59:48,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 504 states, 274 states have (on average 1.2773722627737227) internal successors, (350), 277 states have internal predecessors, (350), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2023-11-23 08:59:48,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-23 08:59:48,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:59:48,282 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:59:48,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:59:48,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:59:48,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1175051523, now seen corresponding path program 1 times [2023-11-23 08:59:48,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:59:48,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082870187] [2023-11-23 08:59:48,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:48,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:59:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:48,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:59:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:48,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:59:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:48,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 08:59:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:48,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 08:59:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:48,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 08:59:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:48,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 08:59:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:48,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 08:59:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:48,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 08:59:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:48,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 08:59:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:48,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 08:59:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:48,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 08:59:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:48,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 08:59:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:49,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:59:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:49,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 08:59:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:49,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 08:59:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:49,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 08:59:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:49,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 08:59:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:49,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-23 08:59:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:49,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 08:59:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:49,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 08:59:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:49,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-23 08:59:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:49,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 08:59:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:49,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 08:59:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:49,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-23 08:59:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:49,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-23 08:59:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:49,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-23 08:59:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:49,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-23 08:59:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:49,150 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2023-11-23 08:59:49,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:59:49,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082870187] [2023-11-23 08:59:49,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082870187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:59:49,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 08:59:49,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 08:59:49,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669445813] [2023-11-23 08:59:49,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:59:49,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 08:59:49,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:59:49,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 08:59:49,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 08:59:49,189 INFO L87 Difference]: Start difference. First operand has 504 states, 274 states have (on average 1.2773722627737227) internal successors, (350), 277 states have internal predecessors, (350), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-23 08:59:50,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:59:50,493 INFO L93 Difference]: Finished difference Result 1151 states and 1956 transitions. [2023-11-23 08:59:50,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 08:59:50,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 158 [2023-11-23 08:59:50,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:59:50,518 INFO L225 Difference]: With dead ends: 1151 [2023-11-23 08:59:50,518 INFO L226 Difference]: Without dead ends: 653 [2023-11-23 08:59:50,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 08:59:50,529 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 309 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 563 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 563 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-23 08:59:50,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 880 Invalid, 1049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [563 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-23 08:59:50,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2023-11-23 08:59:50,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 501. [2023-11-23 08:59:50,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 272 states have (on average 1.2536764705882353) internal successors, (341), 274 states have internal predecessors, (341), 196 states have call successors, (196), 32 states have call predecessors, (196), 31 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2023-11-23 08:59:50,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 731 transitions. [2023-11-23 08:59:50,605 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 731 transitions. Word has length 158 [2023-11-23 08:59:50,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:59:50,605 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 731 transitions. [2023-11-23 08:59:50,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-23 08:59:50,605 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 731 transitions. [2023-11-23 08:59:50,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-23 08:59:50,608 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:59:50,608 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:59:50,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 08:59:50,608 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:59:50,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:59:50,609 INFO L85 PathProgramCache]: Analyzing trace with hash 954199943, now seen corresponding path program 1 times [2023-11-23 08:59:50,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:59:50,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304604492] [2023-11-23 08:59:50,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:50,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:59:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:59:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:59:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 08:59:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 08:59:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 08:59:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 08:59:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 08:59:51,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 08:59:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 08:59:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 08:59:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 08:59:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 08:59:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:59:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 08:59:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 08:59:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 08:59:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 08:59:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-23 08:59:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 08:59:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 08:59:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-23 08:59:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 08:59:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 08:59:51,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-23 08:59:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-23 08:59:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-23 08:59:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-23 08:59:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,242 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2023-11-23 08:59:51,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:59:51,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304604492] [2023-11-23 08:59:51,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304604492] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:59:51,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488017543] [2023-11-23 08:59:51,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:51,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:59:51,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:59:51,257 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 08:59:51,258 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 08:59:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 2420 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 08:59:51,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:59:51,762 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2023-11-23 08:59:51,763 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:59:51,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488017543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:59:51,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 08:59:51,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-23 08:59:51,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486941698] [2023-11-23 08:59:51,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:59:51,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 08:59:51,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:59:51,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 08:59:51,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 08:59:51,766 INFO L87 Difference]: Start difference. First operand 501 states and 731 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-23 08:59:52,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:59:52,070 INFO L93 Difference]: Finished difference Result 975 states and 1434 transitions. [2023-11-23 08:59:52,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 08:59:52,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 158 [2023-11-23 08:59:52,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:59:52,074 INFO L225 Difference]: With dead ends: 975 [2023-11-23 08:59:52,074 INFO L226 Difference]: Without dead ends: 503 [2023-11-23 08:59:52,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-23 08:59:52,077 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 83 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2598 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 08:59:52,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 2598 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 08:59:52,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2023-11-23 08:59:52,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2023-11-23 08:59:52,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 273 states have (on average 1.2527472527472527) internal successors, (342), 276 states have internal predecessors, (342), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (204), 194 states have call predecessors, (204), 194 states have call successors, (204) [2023-11-23 08:59:52,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 742 transitions. [2023-11-23 08:59:52,139 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 742 transitions. Word has length 158 [2023-11-23 08:59:52,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:59:52,139 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 742 transitions. [2023-11-23 08:59:52,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-23 08:59:52,140 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 742 transitions. [2023-11-23 08:59:52,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-23 08:59:52,141 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:59:52,141 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:59:52,157 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 08:59:52,358 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 08:59:52,360 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:59:52,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:59:52,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1079393414, now seen corresponding path program 1 times [2023-11-23 08:59:52,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:59:52,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576615460] [2023-11-23 08:59:52,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:52,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:59:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:59:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:59:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 08:59:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 08:59:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 08:59:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 08:59:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 08:59:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 08:59:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 08:59:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 08:59:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 08:59:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 08:59:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 08:59:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:59:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 08:59:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 08:59:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 08:59:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 08:59:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 08:59:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 08:59:52,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 08:59:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-23 08:59:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-23 08:59:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-23 08:59:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-23 08:59:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-23 08:59:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-23 08:59:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-23 08:59:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:52,905 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2023-11-23 08:59:52,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:59:52,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576615460] [2023-11-23 08:59:52,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576615460] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:59:52,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191862209] [2023-11-23 08:59:52,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:52,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:59:52,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:59:52,929 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 08:59:52,960 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 08:59:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 2470 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 08:59:53,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:59:53,455 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2023-11-23 08:59:53,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:59:53,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191862209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:59:53,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 08:59:53,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-11-23 08:59:53,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82618923] [2023-11-23 08:59:53,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:59:53,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 08:59:53,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:59:53,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 08:59:53,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-11-23 08:59:53,457 INFO L87 Difference]: Start difference. First operand 503 states and 742 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-23 08:59:53,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:59:53,947 INFO L93 Difference]: Finished difference Result 998 states and 1514 transitions. [2023-11-23 08:59:53,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 08:59:53,948 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 166 [2023-11-23 08:59:53,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:59:53,951 INFO L225 Difference]: With dead ends: 998 [2023-11-23 08:59:53,952 INFO L226 Difference]: Without dead ends: 524 [2023-11-23 08:59:53,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-11-23 08:59:53,954 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 135 mSDsluCounter, 3028 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 3675 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 08:59:53,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 3675 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 08:59:53,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-11-23 08:59:53,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 522. [2023-11-23 08:59:53,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 289 states have (on average 1.259515570934256) internal successors, (364), 292 states have internal predecessors, (364), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2023-11-23 08:59:53,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 800 transitions. [2023-11-23 08:59:53,980 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 800 transitions. Word has length 166 [2023-11-23 08:59:53,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:59:53,981 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 800 transitions. [2023-11-23 08:59:53,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-23 08:59:53,981 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 800 transitions. [2023-11-23 08:59:53,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-23 08:59:53,983 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:59:53,983 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:59:54,028 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 08:59:54,197 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 08:59:54,198 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:59:54,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:59:54,199 INFO L85 PathProgramCache]: Analyzing trace with hash 735699085, now seen corresponding path program 1 times [2023-11-23 08:59:54,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:59:54,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444761715] [2023-11-23 08:59:54,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:54,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:59:54,254 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 08:59:54,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1864878920] [2023-11-23 08:59:54,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:54,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:59:54,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:59:54,256 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 08:59:54,281 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 08:59:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:54,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 2609 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 08:59:54,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:59:54,797 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2023-11-23 08:59:54,798 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:59:54,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:59:54,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444761715] [2023-11-23 08:59:54,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 08:59:54,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864878920] [2023-11-23 08:59:54,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864878920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:59:54,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 08:59:54,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 08:59:54,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411901470] [2023-11-23 08:59:54,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:59:54,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 08:59:54,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:59:54,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 08:59:54,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 08:59:54,801 INFO L87 Difference]: Start difference. First operand 522 states and 800 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-23 08:59:55,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:59:55,152 INFO L93 Difference]: Finished difference Result 1021 states and 1585 transitions. [2023-11-23 08:59:55,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 08:59:55,153 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 179 [2023-11-23 08:59:55,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:59:55,156 INFO L225 Difference]: With dead ends: 1021 [2023-11-23 08:59:55,156 INFO L226 Difference]: Without dead ends: 528 [2023-11-23 08:59:55,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-23 08:59:55,159 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 102 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 3226 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 08:59:55,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 3226 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 08:59:55,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-11-23 08:59:55,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 522. [2023-11-23 08:59:55,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 289 states have (on average 1.259515570934256) internal successors, (364), 292 states have internal predecessors, (364), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2023-11-23 08:59:55,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 800 transitions. [2023-11-23 08:59:55,188 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 800 transitions. Word has length 179 [2023-11-23 08:59:55,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:59:55,188 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 800 transitions. [2023-11-23 08:59:55,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-23 08:59:55,189 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 800 transitions. [2023-11-23 08:59:55,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-11-23 08:59:55,191 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:59:55,191 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:59:55,210 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 08:59:55,410 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 08:59:55,410 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:59:55,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:59:55,411 INFO L85 PathProgramCache]: Analyzing trace with hash -100132663, now seen corresponding path program 1 times [2023-11-23 08:59:55,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:59:55,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430178632] [2023-11-23 08:59:55,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:55,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:59:55,466 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 08:59:55,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1929008474] [2023-11-23 08:59:55,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:55,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:59:55,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:59:55,468 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 08:59:55,472 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 08:59:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:55,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 2681 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 08:59:55,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:59:56,011 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2023-11-23 08:59:56,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:59:56,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:59:56,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430178632] [2023-11-23 08:59:56,012 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 08:59:56,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929008474] [2023-11-23 08:59:56,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929008474] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:59:56,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 08:59:56,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 08:59:56,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515425091] [2023-11-23 08:59:56,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:59:56,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 08:59:56,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:59:56,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 08:59:56,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 08:59:56,014 INFO L87 Difference]: Start difference. First operand 522 states and 800 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-23 08:59:56,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:59:56,605 INFO L93 Difference]: Finished difference Result 1031 states and 1592 transitions. [2023-11-23 08:59:56,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 08:59:56,605 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 195 [2023-11-23 08:59:56,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:59:56,609 INFO L225 Difference]: With dead ends: 1031 [2023-11-23 08:59:56,609 INFO L226 Difference]: Without dead ends: 538 [2023-11-23 08:59:56,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 08:59:56,612 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 162 mSDsluCounter, 3613 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 4253 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 08:59:56,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 4253 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 08:59:56,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2023-11-23 08:59:56,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 522. [2023-11-23 08:59:56,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 289 states have (on average 1.259515570934256) internal successors, (364), 292 states have internal predecessors, (364), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2023-11-23 08:59:56,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 800 transitions. [2023-11-23 08:59:56,633 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 800 transitions. Word has length 195 [2023-11-23 08:59:56,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:59:56,634 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 800 transitions. [2023-11-23 08:59:56,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-23 08:59:56,634 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 800 transitions. [2023-11-23 08:59:56,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-23 08:59:56,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:59:56,636 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:59:56,652 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 08:59:56,852 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 08:59:56,852 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:59:56,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:59:56,853 INFO L85 PathProgramCache]: Analyzing trace with hash -988409480, now seen corresponding path program 2 times [2023-11-23 08:59:56,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:59:56,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709200422] [2023-11-23 08:59:56,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:56,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:59:56,903 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 08:59:56,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [736446320] [2023-11-23 08:59:56,904 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 08:59:56,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:59:56,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:59:56,905 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 08:59:56,907 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 08:59:57,628 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 08:59:57,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 08:59:57,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 2820 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 08:59:57,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:59:57,698 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-23 08:59:57,699 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:59:57,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:59:57,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709200422] [2023-11-23 08:59:57,699 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 08:59:57,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736446320] [2023-11-23 08:59:57,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736446320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:59:57,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 08:59:57,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 08:59:57,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396344622] [2023-11-23 08:59:57,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:59:57,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 08:59:57,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:59:57,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 08:59:57,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 08:59:57,701 INFO L87 Difference]: Start difference. First operand 522 states and 800 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2023-11-23 08:59:58,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:59:58,048 INFO L93 Difference]: Finished difference Result 1009 states and 1556 transitions. [2023-11-23 08:59:58,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 08:59:58,048 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) Word has length 208 [2023-11-23 08:59:58,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:59:58,052 INFO L225 Difference]: With dead ends: 1009 [2023-11-23 08:59:58,052 INFO L226 Difference]: Without dead ends: 524 [2023-11-23 08:59:58,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 08:59:58,055 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 132 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 3199 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 08:59:58,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 3199 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 08:59:58,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-11-23 08:59:58,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2023-11-23 08:59:58,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 290 states have (on average 1.2586206896551724) internal successors, (365), 294 states have internal predecessors, (365), 198 states have call successors, (198), 32 states have call predecessors, (198), 34 states have return successors, (246), 197 states have call predecessors, (246), 196 states have call successors, (246) [2023-11-23 08:59:58,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 809 transitions. [2023-11-23 08:59:58,080 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 809 transitions. Word has length 208 [2023-11-23 08:59:58,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:59:58,080 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 809 transitions. [2023-11-23 08:59:58,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2023-11-23 08:59:58,081 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 809 transitions. [2023-11-23 08:59:58,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-23 08:59:58,083 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:59:58,083 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:59:58,100 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 08:59:58,298 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 08:59:58,298 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:59:58,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:59:58,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1806511259, now seen corresponding path program 1 times [2023-11-23 08:59:58,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:59:58,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587938899] [2023-11-23 08:59:58,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:58,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:59:58,369 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 08:59:58,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842297208] [2023-11-23 08:59:58,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:58,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:59:58,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:59:58,371 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 08:59:58,397 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 08:59:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:58,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 2870 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 08:59:58,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:59:58,980 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2023-11-23 08:59:58,980 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:59:58,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:59:58,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587938899] [2023-11-23 08:59:58,981 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 08:59:58,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842297208] [2023-11-23 08:59:58,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842297208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:59:58,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 08:59:58,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 08:59:58,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156926700] [2023-11-23 08:59:58,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:59:58,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 08:59:58,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:59:58,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 08:59:58,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 08:59:58,983 INFO L87 Difference]: Start difference. First operand 524 states and 809 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 8 states have internal predecessors, (87), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2023-11-23 08:59:59,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:59:59,564 INFO L93 Difference]: Finished difference Result 1027 states and 1594 transitions. [2023-11-23 08:59:59,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 08:59:59,564 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 8 states have internal predecessors, (87), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 216 [2023-11-23 08:59:59,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:59:59,567 INFO L225 Difference]: With dead ends: 1027 [2023-11-23 08:59:59,567 INFO L226 Difference]: Without dead ends: 540 [2023-11-23 08:59:59,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 211 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 08:59:59,570 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 168 mSDsluCounter, 3662 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 4324 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 08:59:59,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 4324 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 08:59:59,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2023-11-23 08:59:59,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 538. [2023-11-23 08:59:59,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 303 states have (on average 1.2640264026402641) internal successors, (383), 306 states have internal predecessors, (383), 199 states have call successors, (199), 32 states have call predecessors, (199), 34 states have return successors, (247), 199 states have call predecessors, (247), 197 states have call successors, (247) [2023-11-23 08:59:59,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 829 transitions. [2023-11-23 08:59:59,599 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 829 transitions. Word has length 216 [2023-11-23 08:59:59,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:59:59,600 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 829 transitions. [2023-11-23 08:59:59,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 8 states have internal predecessors, (87), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2023-11-23 08:59:59,600 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 829 transitions. [2023-11-23 08:59:59,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-11-23 08:59:59,602 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:59:59,602 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:59:59,619 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 08:59:59,818 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 08:59:59,819 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:59:59,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:59:59,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1966994678, now seen corresponding path program 2 times [2023-11-23 08:59:59,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:59:59,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675960172] [2023-11-23 08:59:59,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:59,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:59:59,882 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 08:59:59,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1712361625] [2023-11-23 08:59:59,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 08:59:59,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:59:59,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:59:59,884 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 08:59:59,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 09:00:00,725 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 09:00:00,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:00:00,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 3009 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:00:00,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:00,824 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2023-11-23 09:00:00,824 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:00,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:00,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675960172] [2023-11-23 09:00:00,825 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:00,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712361625] [2023-11-23 09:00:00,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712361625] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:00,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:00,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 09:00:00,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965421488] [2023-11-23 09:00:00,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:00,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 09:00:00,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:00,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 09:00:00,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:00:00,826 INFO L87 Difference]: Start difference. First operand 538 states and 829 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2023-11-23 09:00:01,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:01,279 INFO L93 Difference]: Finished difference Result 1045 states and 1625 transitions. [2023-11-23 09:00:01,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 09:00:01,280 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 229 [2023-11-23 09:00:01,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:01,283 INFO L225 Difference]: With dead ends: 1045 [2023-11-23 09:00:01,283 INFO L226 Difference]: Without dead ends: 544 [2023-11-23 09:00:01,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-23 09:00:01,287 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 151 mSDsluCounter, 3142 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 3818 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:01,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 3818 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 09:00:01,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2023-11-23 09:00:01,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 538. [2023-11-23 09:00:01,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 303 states have (on average 1.2640264026402641) internal successors, (383), 306 states have internal predecessors, (383), 199 states have call successors, (199), 32 states have call predecessors, (199), 34 states have return successors, (247), 199 states have call predecessors, (247), 197 states have call successors, (247) [2023-11-23 09:00:01,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 829 transitions. [2023-11-23 09:00:01,313 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 829 transitions. Word has length 229 [2023-11-23 09:00:01,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:01,314 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 829 transitions. [2023-11-23 09:00:01,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2023-11-23 09:00:01,315 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 829 transitions. [2023-11-23 09:00:01,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-11-23 09:00:01,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:01,317 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:01,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:01,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:01,551 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:01,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:01,552 INFO L85 PathProgramCache]: Analyzing trace with hash -4993478, now seen corresponding path program 3 times [2023-11-23 09:00:01,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:01,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370081919] [2023-11-23 09:00:01,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:01,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:01,666 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:01,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1934122213] [2023-11-23 09:00:01,667 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 09:00:01,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:01,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:01,668 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:01,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 09:00:02,210 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 09:00:02,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:00:02,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 1877 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 09:00:02,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:02,247 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-11-23 09:00:02,248 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:02,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:02,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370081919] [2023-11-23 09:00:02,248 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:02,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934122213] [2023-11-23 09:00:02,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934122213] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:02,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:02,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:00:02,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616078651] [2023-11-23 09:00:02,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:02,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:00:02,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:02,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:00:02,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:00:02,250 INFO L87 Difference]: Start difference. First operand 538 states and 829 transitions. Second operand has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-23 09:00:02,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:02,687 INFO L93 Difference]: Finished difference Result 1022 states and 1588 transitions. [2023-11-23 09:00:02,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 09:00:02,687 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 245 [2023-11-23 09:00:02,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:02,690 INFO L225 Difference]: With dead ends: 1022 [2023-11-23 09:00:02,690 INFO L226 Difference]: Without dead ends: 538 [2023-11-23 09:00:02,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 240 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 09:00:02,693 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 2 mSDsluCounter, 2541 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3200 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:02,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3200 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 09:00:02,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2023-11-23 09:00:02,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2023-11-23 09:00:02,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 303 states have (on average 1.2640264026402641) internal successors, (383), 306 states have internal predecessors, (383), 199 states have call successors, (199), 32 states have call predecessors, (199), 34 states have return successors, (246), 199 states have call predecessors, (246), 197 states have call successors, (246) [2023-11-23 09:00:02,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 828 transitions. [2023-11-23 09:00:02,717 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 828 transitions. Word has length 245 [2023-11-23 09:00:02,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:02,717 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 828 transitions. [2023-11-23 09:00:02,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-23 09:00:02,717 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 828 transitions. [2023-11-23 09:00:02,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-11-23 09:00:02,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:02,719 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:02,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:02,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-23 09:00:02,935 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:02,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:02,935 INFO L85 PathProgramCache]: Analyzing trace with hash 49782412, now seen corresponding path program 4 times [2023-11-23 09:00:02,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:02,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686097497] [2023-11-23 09:00:02,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:02,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:03,076 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:03,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [653701310] [2023-11-23 09:00:03,078 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 09:00:03,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:03,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:03,080 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:03,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 09:00:03,464 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 09:00:03,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:00:03,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 09:00:03,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:03,527 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-11-23 09:00:03,528 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:03,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:03,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686097497] [2023-11-23 09:00:03,528 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:03,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653701310] [2023-11-23 09:00:03,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653701310] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:03,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:03,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 09:00:03,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853619101] [2023-11-23 09:00:03,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:03,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:00:03,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:03,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:00:03,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:00:03,532 INFO L87 Difference]: Start difference. First operand 538 states and 828 transitions. Second operand has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) [2023-11-23 09:00:04,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:04,234 INFO L93 Difference]: Finished difference Result 1146 states and 1778 transitions. [2023-11-23 09:00:04,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:00:04,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) Word has length 271 [2023-11-23 09:00:04,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:04,239 INFO L225 Difference]: With dead ends: 1146 [2023-11-23 09:00:04,239 INFO L226 Difference]: Without dead ends: 657 [2023-11-23 09:00:04,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 266 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 09:00:04,242 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 122 mSDsluCounter, 4163 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 4898 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:04,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 4898 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 09:00:04,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2023-11-23 09:00:04,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 634. [2023-11-23 09:00:04,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 368 states have (on average 1.2880434782608696) internal successors, (474), 373 states have internal predecessors, (474), 228 states have call successors, (228), 33 states have call predecessors, (228), 36 states have return successors, (289), 227 states have call predecessors, (289), 226 states have call successors, (289) [2023-11-23 09:00:04,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 991 transitions. [2023-11-23 09:00:04,266 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 991 transitions. Word has length 271 [2023-11-23 09:00:04,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:04,266 INFO L495 AbstractCegarLoop]: Abstraction has 634 states and 991 transitions. [2023-11-23 09:00:04,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) [2023-11-23 09:00:04,267 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 991 transitions. [2023-11-23 09:00:04,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-11-23 09:00:04,269 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:04,269 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:04,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:04,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 09:00:04,501 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:04,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:04,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1987096116, now seen corresponding path program 1 times [2023-11-23 09:00:04,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:04,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349014435] [2023-11-23 09:00:04,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:04,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:04,566 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:04,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1335401100] [2023-11-23 09:00:04,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:04,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:04,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:04,567 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:04,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 09:00:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:05,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 3270 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 09:00:05,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:05,284 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-23 09:00:05,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:05,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:05,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349014435] [2023-11-23 09:00:05,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:05,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335401100] [2023-11-23 09:00:05,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335401100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:05,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:05,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 09:00:05,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25046307] [2023-11-23 09:00:05,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:05,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 09:00:05,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:05,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 09:00:05,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:00:05,286 INFO L87 Difference]: Start difference. First operand 634 states and 991 transitions. Second operand has 9 states, 8 states have (on average 13.875) internal successors, (111), 9 states have internal predecessors, (111), 6 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) [2023-11-23 09:00:06,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:06,074 INFO L93 Difference]: Finished difference Result 1247 states and 1951 transitions. [2023-11-23 09:00:06,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 09:00:06,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.875) internal successors, (111), 9 states have internal predecessors, (111), 6 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) Word has length 266 [2023-11-23 09:00:06,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:06,079 INFO L225 Difference]: With dead ends: 1247 [2023-11-23 09:00:06,079 INFO L226 Difference]: Without dead ends: 650 [2023-11-23 09:00:06,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 262 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 09:00:06,083 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 211 mSDsluCounter, 4168 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 4806 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:06,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 4806 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 09:00:06,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2023-11-23 09:00:06,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 618. [2023-11-23 09:00:06,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 354 states have (on average 1.2853107344632768) internal successors, (455), 359 states have internal predecessors, (455), 227 states have call successors, (227), 33 states have call predecessors, (227), 35 states have return successors, (278), 225 states have call predecessors, (278), 225 states have call successors, (278) [2023-11-23 09:00:06,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 960 transitions. [2023-11-23 09:00:06,112 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 960 transitions. Word has length 266 [2023-11-23 09:00:06,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:06,113 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 960 transitions. [2023-11-23 09:00:06,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.875) internal successors, (111), 9 states have internal predecessors, (111), 6 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) [2023-11-23 09:00:06,113 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 960 transitions. [2023-11-23 09:00:06,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-11-23 09:00:06,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:06,116 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:06,136 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-23 09:00:06,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 09:00:06,334 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:06,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:06,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1294289749, now seen corresponding path program 5 times [2023-11-23 09:00:06,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:06,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325106300] [2023-11-23 09:00:06,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:06,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:06,410 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:06,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1882928435] [2023-11-23 09:00:06,411 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-23 09:00:06,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:06,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:06,412 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:06,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 09:00:06,754 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 09:00:06,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:00:06,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 09:00:06,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:06,807 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2023-11-23 09:00:06,807 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:06,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:06,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325106300] [2023-11-23 09:00:06,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:06,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882928435] [2023-11-23 09:00:06,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882928435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:06,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:06,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:00:06,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993182589] [2023-11-23 09:00:06,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:06,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:00:06,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:06,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:00:06,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:00:06,810 INFO L87 Difference]: Start difference. First operand 618 states and 960 transitions. Second operand has 6 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-23 09:00:07,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:07,020 INFO L93 Difference]: Finished difference Result 1208 states and 1880 transitions. [2023-11-23 09:00:07,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 09:00:07,021 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) Word has length 284 [2023-11-23 09:00:07,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:07,025 INFO L225 Difference]: With dead ends: 1208 [2023-11-23 09:00:07,025 INFO L226 Difference]: Without dead ends: 624 [2023-11-23 09:00:07,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:00:07,028 INFO L413 NwaCegarLoop]: 702 mSDtfsCounter, 1 mSDsluCounter, 2804 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3506 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:07,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3506 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 09:00:07,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2023-11-23 09:00:07,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 622. [2023-11-23 09:00:07,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 357 states have (on average 1.2829131652661065) internal successors, (458), 362 states have internal predecessors, (458), 227 states have call successors, (227), 33 states have call predecessors, (227), 36 states have return successors, (280), 226 states have call predecessors, (280), 225 states have call successors, (280) [2023-11-23 09:00:07,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 965 transitions. [2023-11-23 09:00:07,051 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 965 transitions. Word has length 284 [2023-11-23 09:00:07,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:07,051 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 965 transitions. [2023-11-23 09:00:07,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-23 09:00:07,051 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 965 transitions. [2023-11-23 09:00:07,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2023-11-23 09:00:07,053 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:07,053 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:07,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:07,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 09:00:07,266 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:07,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:07,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1807597246, now seen corresponding path program 1 times [2023-11-23 09:00:07,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:07,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079460011] [2023-11-23 09:00:07,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:07,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:07,334 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:07,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1111231308] [2023-11-23 09:00:07,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:07,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:07,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:07,343 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:07,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 09:00:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:08,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 3545 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 09:00:08,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:08,103 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2023-11-23 09:00:08,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:08,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:08,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079460011] [2023-11-23 09:00:08,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:08,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111231308] [2023-11-23 09:00:08,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111231308] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:08,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:08,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 09:00:08,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919242328] [2023-11-23 09:00:08,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:08,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:00:08,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:08,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:00:08,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:00:08,107 INFO L87 Difference]: Start difference. First operand 622 states and 965 transitions. Second operand has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 6 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2023-11-23 09:00:08,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:08,533 INFO L93 Difference]: Finished difference Result 1108 states and 1717 transitions. [2023-11-23 09:00:08,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:00:08,534 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 6 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) Word has length 292 [2023-11-23 09:00:08,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:08,537 INFO L225 Difference]: With dead ends: 1108 [2023-11-23 09:00:08,537 INFO L226 Difference]: Without dead ends: 531 [2023-11-23 09:00:08,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-23 09:00:08,541 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 196 mSDsluCounter, 3729 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 4399 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:08,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 4399 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 09:00:08,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2023-11-23 09:00:08,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 529. [2023-11-23 09:00:08,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 294 states have (on average 1.2551020408163265) internal successors, (369), 298 states have internal predecessors, (369), 198 states have call successors, (198), 32 states have call predecessors, (198), 35 states have return successors, (241), 198 states have call predecessors, (241), 196 states have call successors, (241) [2023-11-23 09:00:08,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 808 transitions. [2023-11-23 09:00:08,560 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 808 transitions. Word has length 292 [2023-11-23 09:00:08,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:08,561 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 808 transitions. [2023-11-23 09:00:08,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 6 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2023-11-23 09:00:08,561 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 808 transitions. [2023-11-23 09:00:08,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2023-11-23 09:00:08,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:08,563 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:08,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:08,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 09:00:08,776 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:08,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:08,777 INFO L85 PathProgramCache]: Analyzing trace with hash 346831742, now seen corresponding path program 1 times [2023-11-23 09:00:08,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:08,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112938551] [2023-11-23 09:00:08,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:08,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:08,901 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:08,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1821060516] [2023-11-23 09:00:08,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:08,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:08,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:08,925 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:08,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 09:00:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:09,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 3617 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 09:00:09,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:09,781 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2023-11-23 09:00:09,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:09,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:09,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112938551] [2023-11-23 09:00:09,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:09,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821060516] [2023-11-23 09:00:09,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821060516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:09,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:09,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 09:00:09,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245344653] [2023-11-23 09:00:09,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:09,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 09:00:09,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:09,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 09:00:09,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:00:09,785 INFO L87 Difference]: Start difference. First operand 529 states and 808 transitions. Second operand has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) [2023-11-23 09:00:10,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:10,560 INFO L93 Difference]: Finished difference Result 1013 states and 1548 transitions. [2023-11-23 09:00:10,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 09:00:10,560 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) Word has length 308 [2023-11-23 09:00:10,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:10,564 INFO L225 Difference]: With dead ends: 1013 [2023-11-23 09:00:10,564 INFO L226 Difference]: Without dead ends: 529 [2023-11-23 09:00:10,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2023-11-23 09:00:10,566 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 256 mSDsluCounter, 4708 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 5340 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:10,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 5340 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 09:00:10,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-11-23 09:00:10,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 526. [2023-11-23 09:00:10,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 292 states have (on average 1.2568493150684932) internal successors, (367), 295 states have internal predecessors, (367), 198 states have call successors, (198), 32 states have call predecessors, (198), 34 states have return successors, (233), 198 states have call predecessors, (233), 196 states have call successors, (233) [2023-11-23 09:00:10,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 798 transitions. [2023-11-23 09:00:10,585 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 798 transitions. Word has length 308 [2023-11-23 09:00:10,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:10,585 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 798 transitions. [2023-11-23 09:00:10,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) [2023-11-23 09:00:10,585 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 798 transitions. [2023-11-23 09:00:10,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-11-23 09:00:10,587 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:10,587 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:10,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:10,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 09:00:10,805 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:10,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:10,805 INFO L85 PathProgramCache]: Analyzing trace with hash -2114998721, now seen corresponding path program 2 times [2023-11-23 09:00:10,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:10,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525365604] [2023-11-23 09:00:10,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:10,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:10,882 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:10,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1087428749] [2023-11-23 09:00:10,882 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 09:00:10,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:10,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:10,883 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:10,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 09:00:11,759 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 09:00:11,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:00:11,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 3756 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 09:00:11,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:11,851 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2023-11-23 09:00:11,851 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:11,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:11,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525365604] [2023-11-23 09:00:11,851 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:11,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087428749] [2023-11-23 09:00:11,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087428749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:11,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:11,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 09:00:11,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503730638] [2023-11-23 09:00:11,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:11,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:00:11,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:11,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:00:11,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:00:11,854 INFO L87 Difference]: Start difference. First operand 526 states and 798 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 6 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 5 states have call predecessors, (31), 6 states have call successors, (31) [2023-11-23 09:00:12,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:12,480 INFO L93 Difference]: Finished difference Result 1001 states and 1518 transitions. [2023-11-23 09:00:12,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 09:00:12,481 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 6 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 5 states have call predecessors, (31), 6 states have call successors, (31) Word has length 321 [2023-11-23 09:00:12,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:12,484 INFO L225 Difference]: With dead ends: 1001 [2023-11-23 09:00:12,484 INFO L226 Difference]: Without dead ends: 526 [2023-11-23 09:00:12,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:00:12,486 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 179 mSDsluCounter, 3601 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 4253 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:12,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 4253 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 09:00:12,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-11-23 09:00:12,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2023-11-23 09:00:12,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 292 states have (on average 1.2568493150684932) internal successors, (367), 295 states have internal predecessors, (367), 198 states have call successors, (198), 32 states have call predecessors, (198), 34 states have return successors, (230), 198 states have call predecessors, (230), 196 states have call successors, (230) [2023-11-23 09:00:12,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 795 transitions. [2023-11-23 09:00:12,504 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 795 transitions. Word has length 321 [2023-11-23 09:00:12,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:12,504 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 795 transitions. [2023-11-23 09:00:12,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 6 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 5 states have call predecessors, (31), 6 states have call successors, (31) [2023-11-23 09:00:12,505 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 795 transitions. [2023-11-23 09:00:12,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2023-11-23 09:00:12,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:12,506 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:12,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:12,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:12,725 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:12,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:12,725 INFO L85 PathProgramCache]: Analyzing trace with hash -837708158, now seen corresponding path program 3 times [2023-11-23 09:00:12,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:12,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055539598] [2023-11-23 09:00:12,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:12,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:12,793 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:12,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1230922544] [2023-11-23 09:00:12,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 09:00:12,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:12,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:12,814 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:12,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 09:00:13,496 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 09:00:13,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:00:13,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 2016 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 09:00:13,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:13,582 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 84 proven. 2 refuted. 0 times theorem prover too weak. 807 trivial. 0 not checked. [2023-11-23 09:00:13,582 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 09:00:13,851 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 84 proven. 3 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2023-11-23 09:00:13,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:13,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055539598] [2023-11-23 09:00:13,852 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:13,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230922544] [2023-11-23 09:00:13,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230922544] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 09:00:13,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 09:00:13,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2023-11-23 09:00:13,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687309085] [2023-11-23 09:00:13,853 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 09:00:13,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:00:13,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:13,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:00:13,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:00:13,854 INFO L87 Difference]: Start difference. First operand 526 states and 795 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-23 09:00:14,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:14,482 INFO L93 Difference]: Finished difference Result 997 states and 1522 transitions. [2023-11-23 09:00:14,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 09:00:14,482 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 334 [2023-11-23 09:00:14,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:14,486 INFO L225 Difference]: With dead ends: 997 [2023-11-23 09:00:14,486 INFO L226 Difference]: Without dead ends: 528 [2023-11-23 09:00:14,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 662 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:00:14,489 INFO L413 NwaCegarLoop]: 666 mSDtfsCounter, 21 mSDsluCounter, 3173 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3839 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:14,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3839 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 09:00:14,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-11-23 09:00:14,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2023-11-23 09:00:14,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 294 states have (on average 1.2551020408163265) internal successors, (369), 296 states have internal predecessors, (369), 198 states have call successors, (198), 33 states have call predecessors, (198), 34 states have return successors, (229), 198 states have call predecessors, (229), 196 states have call successors, (229) [2023-11-23 09:00:14,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 796 transitions. [2023-11-23 09:00:14,507 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 796 transitions. Word has length 334 [2023-11-23 09:00:14,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:14,507 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 796 transitions. [2023-11-23 09:00:14,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-23 09:00:14,508 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 796 transitions. [2023-11-23 09:00:14,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-11-23 09:00:14,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:14,509 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:14,552 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 09:00:14,725 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 09:00:14,725 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:14,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:14,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1941220823, now seen corresponding path program 1 times [2023-11-23 09:00:14,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:14,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495271135] [2023-11-23 09:00:14,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:14,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:14,791 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:14,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1151414492] [2023-11-23 09:00:14,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:14,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:14,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:14,793 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 09:00:14,816 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 09:00:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:15,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 4034 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-23 09:00:15,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:15,785 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2023-11-23 09:00:15,785 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:15,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:15,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495271135] [2023-11-23 09:00:15,785 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:15,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151414492] [2023-11-23 09:00:15,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151414492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:15,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:15,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 09:00:15,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782579235] [2023-11-23 09:00:15,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:15,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 09:00:15,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:15,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 09:00:15,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:00:15,788 INFO L87 Difference]: Start difference. First operand 528 states and 796 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 5 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 5 states have call predecessors, (31), 5 states have call successors, (31) [2023-11-23 09:00:16,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:16,361 INFO L93 Difference]: Finished difference Result 1072 states and 1625 transitions. [2023-11-23 09:00:16,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:00:16,362 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 5 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 5 states have call predecessors, (31), 5 states have call successors, (31) Word has length 347 [2023-11-23 09:00:16,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:16,366 INFO L225 Difference]: With dead ends: 1072 [2023-11-23 09:00:16,366 INFO L226 Difference]: Without dead ends: 598 [2023-11-23 09:00:16,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-23 09:00:16,369 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 108 mSDsluCounter, 3616 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 4362 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:16,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 4362 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 09:00:16,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2023-11-23 09:00:16,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 540. [2023-11-23 09:00:16,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 300 states have (on average 1.2533333333333334) internal successors, (376), 302 states have internal predecessors, (376), 204 states have call successors, (204), 33 states have call predecessors, (204), 34 states have return successors, (235), 204 states have call predecessors, (235), 202 states have call successors, (235) [2023-11-23 09:00:16,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 815 transitions. [2023-11-23 09:00:16,410 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 815 transitions. Word has length 347 [2023-11-23 09:00:16,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:16,410 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 815 transitions. [2023-11-23 09:00:16,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 5 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 5 states have call predecessors, (31), 5 states have call successors, (31) [2023-11-23 09:00:16,411 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 815 transitions. [2023-11-23 09:00:16,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-11-23 09:00:16,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:16,412 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:16,437 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 09:00:16,632 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 09:00:16,632 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:16,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:16,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1261948569, now seen corresponding path program 1 times [2023-11-23 09:00:16,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:16,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690439805] [2023-11-23 09:00:16,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:16,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:16,704 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:16,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857032752] [2023-11-23 09:00:16,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:16,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:16,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:16,705 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 09:00:16,740 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 09:00:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:17,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 4031 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 09:00:17,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:17,606 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 466 proven. 0 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2023-11-23 09:00:17,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:17,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:17,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690439805] [2023-11-23 09:00:17,606 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:17,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857032752] [2023-11-23 09:00:17,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857032752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:17,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:17,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:00:17,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301884531] [2023-11-23 09:00:17,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:17,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:00:17,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:17,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:00:17,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:00:17,609 INFO L87 Difference]: Start difference. First operand 540 states and 815 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2023-11-23 09:00:17,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:17,980 INFO L93 Difference]: Finished difference Result 1078 states and 1633 transitions. [2023-11-23 09:00:17,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 09:00:17,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 347 [2023-11-23 09:00:17,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:17,984 INFO L225 Difference]: With dead ends: 1078 [2023-11-23 09:00:17,984 INFO L226 Difference]: Without dead ends: 598 [2023-11-23 09:00:17,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:00:17,987 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 93 mSDsluCounter, 2865 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 3604 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:17,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 3604 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 09:00:17,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2023-11-23 09:00:18,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 540. [2023-11-23 09:00:18,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 300 states have (on average 1.25) internal successors, (375), 302 states have internal predecessors, (375), 204 states have call successors, (204), 33 states have call predecessors, (204), 34 states have return successors, (235), 204 states have call predecessors, (235), 202 states have call successors, (235) [2023-11-23 09:00:18,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 814 transitions. [2023-11-23 09:00:18,007 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 814 transitions. Word has length 347 [2023-11-23 09:00:18,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:18,008 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 814 transitions. [2023-11-23 09:00:18,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2023-11-23 09:00:18,008 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 814 transitions. [2023-11-23 09:00:18,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-11-23 09:00:18,010 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:18,010 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:18,033 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 09:00:18,229 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 09:00:18,230 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:18,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:18,230 INFO L85 PathProgramCache]: Analyzing trace with hash -2145457559, now seen corresponding path program 1 times [2023-11-23 09:00:18,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:18,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574193038] [2023-11-23 09:00:18,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:18,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:18,357 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:18,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122811885] [2023-11-23 09:00:18,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:18,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:18,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:18,373 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 09:00:18,395 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 09:00:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:19,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 4028 conjuncts, 60 conjunts are in the unsatisfiable core [2023-11-23 09:00:19,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:19,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-23 09:00:19,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-23 09:00:19,638 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2023-11-23 09:00:19,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:19,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:19,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574193038] [2023-11-23 09:00:19,639 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:19,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122811885] [2023-11-23 09:00:19,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122811885] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:19,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:19,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-23 09:00:19,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479246922] [2023-11-23 09:00:19,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:19,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 09:00:19,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:19,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 09:00:19,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-23 09:00:19,642 INFO L87 Difference]: Start difference. First operand 540 states and 814 transitions. Second operand has 13 states, 13 states have (on average 8.153846153846153) internal successors, (106), 13 states have internal predecessors, (106), 5 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) [2023-11-23 09:00:21,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:21,108 INFO L93 Difference]: Finished difference Result 1087 states and 1688 transitions. [2023-11-23 09:00:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 09:00:21,108 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.153846153846153) internal successors, (106), 13 states have internal predecessors, (106), 5 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) Word has length 347 [2023-11-23 09:00:21,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:21,112 INFO L225 Difference]: With dead ends: 1087 [2023-11-23 09:00:21,122 INFO L226 Difference]: Without dead ends: 576 [2023-11-23 09:00:21,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2023-11-23 09:00:21,127 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 78 mSDsluCounter, 4907 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 5562 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:21,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 5562 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 09:00:21,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2023-11-23 09:00:21,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 565. [2023-11-23 09:00:21,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 324 states have (on average 1.2592592592592593) internal successors, (408), 325 states have internal predecessors, (408), 204 states have call successors, (204), 33 states have call predecessors, (204), 35 states have return successors, (268), 206 states have call predecessors, (268), 202 states have call successors, (268) [2023-11-23 09:00:21,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 880 transitions. [2023-11-23 09:00:21,161 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 880 transitions. Word has length 347 [2023-11-23 09:00:21,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:21,161 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 880 transitions. [2023-11-23 09:00:21,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.153846153846153) internal successors, (106), 13 states have internal predecessors, (106), 5 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) [2023-11-23 09:00:21,161 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 880 transitions. [2023-11-23 09:00:21,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-11-23 09:00:21,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:21,163 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:21,185 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 09:00:21,379 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 09:00:21,379 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:21,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:21,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1234343979, now seen corresponding path program 1 times [2023-11-23 09:00:21,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:21,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361127099] [2023-11-23 09:00:21,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:21,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:21,456 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:21,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [365323666] [2023-11-23 09:00:21,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:21,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:21,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:21,458 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 09:00:21,466 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 09:00:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:22,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 4013 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 09:00:22,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:22,348 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2023-11-23 09:00:22,348 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:22,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:22,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361127099] [2023-11-23 09:00:22,349 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:22,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365323666] [2023-11-23 09:00:22,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365323666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:22,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:22,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 09:00:22,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746859986] [2023-11-23 09:00:22,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:22,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 09:00:22,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:22,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 09:00:22,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:00:22,351 INFO L87 Difference]: Start difference. First operand 565 states and 880 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-23 09:00:22,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:22,616 INFO L93 Difference]: Finished difference Result 1104 states and 1790 transitions. [2023-11-23 09:00:22,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:00:22,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 347 [2023-11-23 09:00:22,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:22,620 INFO L225 Difference]: With dead ends: 1104 [2023-11-23 09:00:22,620 INFO L226 Difference]: Without dead ends: 568 [2023-11-23 09:00:22,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 09:00:22,625 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 7 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:22,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2104 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 09:00:22,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-11-23 09:00:22,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 565. [2023-11-23 09:00:22,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 324 states have (on average 1.2561728395061729) internal successors, (407), 325 states have internal predecessors, (407), 204 states have call successors, (204), 33 states have call predecessors, (204), 35 states have return successors, (268), 206 states have call predecessors, (268), 202 states have call successors, (268) [2023-11-23 09:00:22,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 879 transitions. [2023-11-23 09:00:22,672 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 879 transitions. Word has length 347 [2023-11-23 09:00:22,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:22,673 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 879 transitions. [2023-11-23 09:00:22,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-23 09:00:22,674 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 879 transitions. [2023-11-23 09:00:22,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-23 09:00:22,676 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:22,676 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:22,714 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 09:00:22,891 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 09:00:22,891 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:22,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:22,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1609551919, now seen corresponding path program 1 times [2023-11-23 09:00:22,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:22,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268099259] [2023-11-23 09:00:22,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:22,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:22,961 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:22,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [354235179] [2023-11-23 09:00:22,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:22,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:22,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:22,968 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 09:00:22,977 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 09:00:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:24,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 4043 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-23 09:00:24,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:24,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-11-23 09:00:24,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1003 backedges. 582 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2023-11-23 09:00:24,201 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:24,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:24,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268099259] [2023-11-23 09:00:24,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:24,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354235179] [2023-11-23 09:00:24,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354235179] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:24,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:24,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 09:00:24,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500388466] [2023-11-23 09:00:24,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:24,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 09:00:24,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:24,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 09:00:24,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:00:24,203 INFO L87 Difference]: Start difference. First operand 565 states and 879 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (36), 5 states have call predecessors, (36), 5 states have call successors, (36) [2023-11-23 09:00:25,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:25,344 INFO L93 Difference]: Finished difference Result 1149 states and 1832 transitions. [2023-11-23 09:00:25,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 09:00:25,345 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (36), 5 states have call predecessors, (36), 5 states have call successors, (36) Word has length 353 [2023-11-23 09:00:25,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:25,349 INFO L225 Difference]: With dead ends: 1149 [2023-11-23 09:00:25,349 INFO L226 Difference]: Without dead ends: 613 [2023-11-23 09:00:25,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2023-11-23 09:00:25,354 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 70 mSDsluCounter, 4306 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 4962 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:25,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 4962 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 09:00:25,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2023-11-23 09:00:25,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 581. [2023-11-23 09:00:25,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 339 states have (on average 1.2507374631268438) internal successors, (424), 339 states have internal predecessors, (424), 204 states have call successors, (204), 33 states have call predecessors, (204), 36 states have return successors, (301), 208 states have call predecessors, (301), 202 states have call successors, (301) [2023-11-23 09:00:25,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 929 transitions. [2023-11-23 09:00:25,384 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 929 transitions. Word has length 353 [2023-11-23 09:00:25,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:25,384 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 929 transitions. [2023-11-23 09:00:25,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (36), 5 states have call predecessors, (36), 5 states have call successors, (36) [2023-11-23 09:00:25,385 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 929 transitions. [2023-11-23 09:00:25,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-23 09:00:25,386 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:25,386 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:25,410 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 09:00:25,609 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 09:00:25,610 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:25,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:25,610 INFO L85 PathProgramCache]: Analyzing trace with hash -142124115, now seen corresponding path program 1 times [2023-11-23 09:00:25,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:25,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357104203] [2023-11-23 09:00:25,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:25,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:25,678 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:25,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1824550908] [2023-11-23 09:00:25,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:25,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:25,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:25,693 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 09:00:25,709 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 09:00:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:26,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 4048 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 09:00:26,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:26,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1003 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2023-11-23 09:00:26,908 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:26,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:26,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357104203] [2023-11-23 09:00:26,908 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:26,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824550908] [2023-11-23 09:00:26,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824550908] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:26,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:26,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 09:00:26,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350500085] [2023-11-23 09:00:26,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:26,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 09:00:26,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:26,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 09:00:26,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 09:00:26,910 INFO L87 Difference]: Start difference. First operand 581 states and 929 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-11-23 09:00:27,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:27,445 INFO L93 Difference]: Finished difference Result 1138 states and 1922 transitions. [2023-11-23 09:00:27,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 09:00:27,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 353 [2023-11-23 09:00:27,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:27,451 INFO L225 Difference]: With dead ends: 1138 [2023-11-23 09:00:27,451 INFO L226 Difference]: Without dead ends: 586 [2023-11-23 09:00:27,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:00:27,457 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 16 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:27,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2718 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 09:00:27,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2023-11-23 09:00:27,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 582. [2023-11-23 09:00:27,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 340 states have (on average 1.25) internal successors, (425), 340 states have internal predecessors, (425), 204 states have call successors, (204), 33 states have call predecessors, (204), 36 states have return successors, (301), 208 states have call predecessors, (301), 202 states have call successors, (301) [2023-11-23 09:00:27,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 930 transitions. [2023-11-23 09:00:27,486 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 930 transitions. Word has length 353 [2023-11-23 09:00:27,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:27,486 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 930 transitions. [2023-11-23 09:00:27,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-11-23 09:00:27,486 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 930 transitions. [2023-11-23 09:00:27,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-23 09:00:27,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:27,488 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:27,514 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 09:00:27,714 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 09:00:27,715 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:27,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:27,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1439480271, now seen corresponding path program 1 times [2023-11-23 09:00:27,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:27,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754259767] [2023-11-23 09:00:27,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:27,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:27,783 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:27,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [610936064] [2023-11-23 09:00:27,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:27,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:27,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:27,801 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 09:00:27,823 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 09:00:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:28,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 4038 conjuncts, 60 conjunts are in the unsatisfiable core [2023-11-23 09:00:28,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:29,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-11-23 09:00:29,164 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 44 treesize of output 32 [2023-11-23 09:00:29,166 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 32 treesize of output 20 [2023-11-23 09:00:29,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1003 backedges. 403 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2023-11-23 09:00:29,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:29,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:29,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754259767] [2023-11-23 09:00:29,196 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:29,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610936064] [2023-11-23 09:00:29,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610936064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:29,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:29,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-23 09:00:29,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792196121] [2023-11-23 09:00:29,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:29,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 09:00:29,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:29,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 09:00:29,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-23 09:00:29,198 INFO L87 Difference]: Start difference. First operand 582 states and 930 transitions. Second operand has 13 states, 13 states have (on average 8.615384615384615) internal successors, (112), 13 states have internal predecessors, (112), 5 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) [2023-11-23 09:00:30,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:30,436 INFO L93 Difference]: Finished difference Result 1167 states and 1912 transitions. [2023-11-23 09:00:30,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 09:00:30,436 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.615384615384615) internal successors, (112), 13 states have internal predecessors, (112), 5 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) Word has length 353 [2023-11-23 09:00:30,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:30,440 INFO L225 Difference]: With dead ends: 1167 [2023-11-23 09:00:30,440 INFO L226 Difference]: Without dead ends: 614 [2023-11-23 09:00:30,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2023-11-23 09:00:30,443 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 88 mSDsluCounter, 3731 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 4387 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:30,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 4387 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 09:00:30,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2023-11-23 09:00:30,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 590. [2023-11-23 09:00:30,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 347 states have (on average 1.2507204610951008) internal successors, (434), 346 states have internal predecessors, (434), 204 states have call successors, (204), 33 states have call predecessors, (204), 37 states have return successors, (334), 210 states have call predecessors, (334), 202 states have call successors, (334) [2023-11-23 09:00:30,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 972 transitions. [2023-11-23 09:00:30,546 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 972 transitions. Word has length 353 [2023-11-23 09:00:30,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:30,546 INFO L495 AbstractCegarLoop]: Abstraction has 590 states and 972 transitions. [2023-11-23 09:00:30,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.615384615384615) internal successors, (112), 13 states have internal predecessors, (112), 5 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) [2023-11-23 09:00:30,547 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 972 transitions. [2023-11-23 09:00:30,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-23 09:00:30,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:30,548 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:30,577 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-23 09:00:30,749 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 09:00:30,749 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:30,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:30,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1542776465, now seen corresponding path program 2 times [2023-11-23 09:00:30,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:30,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385124091] [2023-11-23 09:00:30,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:30,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:30,822 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:30,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1404767025] [2023-11-23 09:00:30,823 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 09:00:30,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:30,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:30,824 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 09:00:30,848 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 09:00:31,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 09:00:31,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:00:31,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 4033 conjuncts, 74 conjunts are in the unsatisfiable core [2023-11-23 09:00:31,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:32,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-23 09:00:32,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-23 09:00:32,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1003 backedges. 439 proven. 8 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2023-11-23 09:00:32,277 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 09:00:32,607 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2023-11-23 09:00:32,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 25 [2023-11-23 09:00:32,613 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-11-23 09:00:32,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 12 [2023-11-23 09:00:32,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1003 backedges. 87 proven. 21 refuted. 0 times theorem prover too weak. 895 trivial. 0 not checked. [2023-11-23 09:00:32,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:32,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385124091] [2023-11-23 09:00:32,762 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:32,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404767025] [2023-11-23 09:00:32,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404767025] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 09:00:32,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 09:00:32,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 20 [2023-11-23 09:00:32,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839857201] [2023-11-23 09:00:32,762 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 09:00:32,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-23 09:00:32,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:32,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-23 09:00:32,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2023-11-23 09:00:32,763 INFO L87 Difference]: Start difference. First operand 590 states and 972 transitions. Second operand has 20 states, 18 states have (on average 6.222222222222222) internal successors, (112), 17 states have internal predecessors, (112), 6 states have call successors, (40), 5 states have call predecessors, (40), 6 states have return successors, (38), 5 states have call predecessors, (38), 5 states have call successors, (38) [2023-11-23 09:00:36,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:00:38,100 WARN L539 Checker$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 09:00:41,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:00:43,965 WARN L539 Checker$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 09:00:47,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:00:50,015 WARN L539 Checker$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 09:00:50,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:50,405 INFO L93 Difference]: Finished difference Result 1691 states and 2969 transitions. [2023-11-23 09:00:50,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-23 09:00:50,407 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 6.222222222222222) internal successors, (112), 17 states have internal predecessors, (112), 6 states have call successors, (40), 5 states have call predecessors, (40), 6 states have return successors, (38), 5 states have call predecessors, (38), 5 states have call successors, (38) Word has length 353 [2023-11-23 09:00:50,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:50,420 INFO L225 Difference]: With dead ends: 1691 [2023-11-23 09:00:50,420 INFO L226 Difference]: Without dead ends: 1167 [2023-11-23 09:00:50,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 723 GetRequests, 685 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=189, Invalid=1143, Unknown=0, NotChecked=0, Total=1332 [2023-11-23 09:00:50,430 INFO L413 NwaCegarLoop]: 1009 mSDtfsCounter, 665 mSDsluCounter, 10626 mSDsCounter, 0 mSdLazyCounter, 6650 mSolverCounterSat, 99 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 11635 SdHoareTripleChecker+Invalid, 6755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 6650 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:50,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 11635 Invalid, 6755 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [99 Valid, 6650 Invalid, 6 Unknown, 0 Unchecked, 17.1s Time] [2023-11-23 09:00:50,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2023-11-23 09:00:50,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1134. [2023-11-23 09:00:50,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 663 states have (on average 1.2503770739064857) internal successors, (829), 660 states have internal predecessors, (829), 398 states have call successors, (398), 65 states have call predecessors, (398), 71 states have return successors, (816), 408 states have call predecessors, (816), 395 states have call successors, (816) [2023-11-23 09:00:50,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 2043 transitions. [2023-11-23 09:00:50,576 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 2043 transitions. Word has length 353 [2023-11-23 09:00:50,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:50,577 INFO L495 AbstractCegarLoop]: Abstraction has 1134 states and 2043 transitions. [2023-11-23 09:00:50,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 6.222222222222222) internal successors, (112), 17 states have internal predecessors, (112), 6 states have call successors, (40), 5 states have call predecessors, (40), 6 states have return successors, (38), 5 states have call predecessors, (38), 5 states have call successors, (38) [2023-11-23 09:00:50,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 2043 transitions. [2023-11-23 09:00:50,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-11-23 09:00:50,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:50,580 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:50,616 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 09:00:50,801 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 09:00:50,801 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:50,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:50,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1402374691, now seen corresponding path program 3 times [2023-11-23 09:00:50,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:50,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819095275] [2023-11-23 09:00:50,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:50,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:50,870 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:50,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [621030503] [2023-11-23 09:00:50,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 09:00:50,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:50,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:50,872 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 09:00:50,924 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 09:00:52,686 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 09:00:52,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:00:52,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 2155 conjuncts, 155 conjunts are in the unsatisfiable core [2023-11-23 09:00:52,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:52,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-23 09:00:52,851 INFO L349 Elim1Store]: treesize reduction 64, result has 42.3 percent of original size [2023-11-23 09:00:52,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 59 Killed by 15