./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_push_ref_harness_negated.i --full-output --preprocessor.use.memory.slicer true --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version abd6749d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_push_ref_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bca4b7f65023d274ad237b41a825fac42415122ae61b05dbfa5b2d3344a9d32a --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 07:39:00,951 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 07:39:01,015 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 07:39:01,020 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 07:39:01,021 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 07:39:01,048 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 07:39:01,048 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 07:39:01,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 07:39:01,049 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 07:39:01,052 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 07:39:01,052 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 07:39:01,053 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 07:39:01,053 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 07:39:01,054 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 07:39:01,055 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 07:39:01,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 07:39:01,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 07:39:01,055 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 07:39:01,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 07:39:01,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 07:39:01,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 07:39:01,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 07:39:01,057 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 07:39:01,057 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 07:39:01,058 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 07:39:01,058 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 07:39:01,058 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 07:39:01,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 07:39:01,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:39:01,059 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 07:39:01,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 07:39:01,060 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 07:39:01,060 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 07:39:01,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 07:39:01,061 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 07:39:01,061 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 07:39:01,061 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 07:39:01,061 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 07:39:01,061 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 07:39:01,062 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bca4b7f65023d274ad237b41a825fac42415122ae61b05dbfa5b2d3344a9d32a Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-23 07:39:01,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 07:39:01,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 07:39:01,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 07:39:01,346 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 07:39:01,347 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 07:39:01,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_push_ref_harness_negated.i [2023-11-23 07:39:02,346 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 07:39:02,717 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 07:39:02,718 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_push_ref_harness_negated.i [2023-11-23 07:39:02,747 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d633d3367/3f987e7fc47544ef96b291b16b28c4c9/FLAG1e01280fd [2023-11-23 07:39:02,762 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d633d3367/3f987e7fc47544ef96b291b16b28c4c9 [2023-11-23 07:39:02,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 07:39:02,765 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 07:39:02,768 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 07:39:02,768 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 07:39:02,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 07:39:02,772 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:39:02" (1/1) ... [2023-11-23 07:39:02,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d56ac0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:02, skipping insertion in model container [2023-11-23 07:39:02,773 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:39:02" (1/1) ... [2023-11-23 07:39:02,862 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 07:39:03,081 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_ref_harness_negated.i[4501,4514] [2023-11-23 07:39:03,090 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_ref_harness_negated.i[4561,4574] [2023-11-23 07:39:03,809 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:03,810 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:03,810 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:03,811 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:03,811 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:03,821 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:03,824 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:03,825 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:03,825 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:03,828 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:03,829 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:03,829 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:03,829 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,039 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:39:04,040 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:39:04,041 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:39:04,042 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:39:04,042 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:39:04,043 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:39:04,043 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:39:04,044 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:39:04,044 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:39:04,072 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:39:04,238 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,242 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,298 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,301 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,301 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,302 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,302 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,302 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,302 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,303 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,303 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,303 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,304 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,304 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,304 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,306 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,307 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,307 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,307 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,309 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,309 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,317 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,317 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,317 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:39:04,356 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 07:39:04,365 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_ref_harness_negated.i[4501,4514] [2023-11-23 07:39:04,367 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_ref_harness_negated.i[4561,4574] [2023-11-23 07:39:04,386 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,394 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,395 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,395 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,395 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,399 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,399 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,400 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,400 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,401 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,401 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,401 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,401 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,419 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:39:04,419 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:39:04,420 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:39:04,420 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:39:04,421 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:39:04,421 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:39:04,421 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:39:04,422 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:39:04,422 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:39:04,422 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:39:04,449 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,454 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,463 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7739-7750] [2023-11-23 07:39:04,483 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,484 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,484 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,484 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,485 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,485 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,485 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,486 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,486 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,487 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,487 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,488 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,488 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,488 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,489 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,489 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,490 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,491 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,492 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,501 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,502 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,502 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:39:04,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:39:04,652 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:04,652 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:04,652 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:04,653 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:04,653 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:04,653 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:04,653 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:04,653 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:04,653 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:04,653 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:04,653 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:04,653 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:04,654 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:04,654 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:04,654 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:39:04,659 INFO L206 MainTranslator]: Completed translation [2023-11-23 07:39:04,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:04 WrapperNode [2023-11-23 07:39:04,660 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 07:39:04,661 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 07:39:04,661 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 07:39:04,661 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 07:39:04,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:04" (1/1) ... [2023-11-23 07:39:04,732 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:04" (1/1) ... [2023-11-23 07:39:04,784 INFO L138 Inliner]: procedures = 696, calls = 1881, calls flagged for inlining = 58, calls inlined = 17, statements flattened = 1147 [2023-11-23 07:39:04,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 07:39:04,785 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 07:39:04,785 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 07:39:04,785 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 07:39:04,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:04" (1/1) ... [2023-11-23 07:39:04,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:04" (1/1) ... [2023-11-23 07:39:04,811 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:04" (1/1) ... [2023-11-23 07:39:04,937 INFO L188 MemorySlicer]: Split 372 memory accesses to 8 slices as follows [91, 2, 236, 7, 9, 24, 0, 3]. 63 percent of accesses are in the largest equivalence class. The 249 initializations are split as follows [0, 2, 236, 2, 1, 5, 0, 3]. The 23 writes are split as follows [13, 0, 0, 1, 1, 8, 0, 0]. [2023-11-23 07:39:04,940 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:04" (1/1) ... [2023-11-23 07:39:04,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:04" (1/1) ... [2023-11-23 07:39:04,988 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:04" (1/1) ... [2023-11-23 07:39:04,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:04" (1/1) ... [2023-11-23 07:39:05,012 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:04" (1/1) ... [2023-11-23 07:39:05,019 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:04" (1/1) ... [2023-11-23 07:39:05,038 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 07:39:05,039 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 07:39:05,039 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 07:39:05,039 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 07:39:05,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:04" (1/1) ... [2023-11-23 07:39:05,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:39:05,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:05,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 07:39:05,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 07:39:05,110 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-23 07:39:05,110 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-23 07:39:05,110 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2023-11-23 07:39:05,111 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2023-11-23 07:39:05,111 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-23 07:39:05,111 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-23 07:39:05,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 07:39:05,111 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-23 07:39:05,111 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-23 07:39:05,111 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-23 07:39:05,111 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-23 07:39:05,112 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 07:39:05,112 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 07:39:05,112 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-23 07:39:05,112 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-23 07:39:05,112 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-23 07:39:05,112 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-23 07:39:05,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 07:39:05,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 07:39:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 07:39:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 07:39:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 07:39:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 07:39:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 07:39:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 07:39:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 07:39:05,114 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 07:39:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 07:39:05,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 07:39:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 07:39:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 07:39:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 07:39:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 07:39:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 07:39:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 07:39:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 07:39:05,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 07:39:05,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 07:39:05,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-23 07:39:05,119 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-23 07:39:05,119 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-23 07:39:05,119 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-23 07:39:05,119 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-23 07:39:05,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 07:39:05,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 07:39:05,120 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 07:39:05,120 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 07:39:05,120 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 07:39:05,124 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 07:39:05,124 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-23 07:39:05,124 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-23 07:39:05,124 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-23 07:39:05,124 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-23 07:39:05,124 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-11-23 07:39:05,125 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-11-23 07:39:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-23 07:39:05,125 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-23 07:39:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-23 07:39:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-23 07:39:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-23 07:39:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-23 07:39:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-23 07:39:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-11-23 07:39:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-11-23 07:39:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2023-11-23 07:39:05,126 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-23 07:39:05,126 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-23 07:39:05,127 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-23 07:39:05,127 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-23 07:39:05,127 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-23 07:39:05,127 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-11-23 07:39:05,127 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-11-23 07:39:05,127 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2023-11-23 07:39:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 07:39:05,128 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 07:39:05,128 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-23 07:39:05,128 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-23 07:39:05,128 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-11-23 07:39:05,128 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-11-23 07:39:05,128 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2023-11-23 07:39:05,128 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2023-11-23 07:39:05,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 07:39:05,129 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-23 07:39:05,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-23 07:39:05,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 07:39:05,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 07:39:05,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 07:39:05,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 07:39:05,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 07:39:05,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 07:39:05,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 07:39:05,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-23 07:39:05,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 07:39:05,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 07:39:05,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 07:39:05,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 07:39:05,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 07:39:05,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 07:39:05,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 07:39:05,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-23 07:39:05,131 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_push_ref [2023-11-23 07:39:05,132 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_push_ref [2023-11-23 07:39:05,132 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-23 07:39:05,132 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-23 07:39:05,132 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 07:39:05,132 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 07:39:05,132 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 07:39:05,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 07:39:05,132 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-23 07:39:05,132 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-23 07:39:05,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 07:39:05,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 07:39:05,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 07:39:05,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 07:39:05,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 07:39:05,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 07:39:05,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 07:39:05,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 07:39:05,134 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-23 07:39:05,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-23 07:39:05,135 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2023-11-23 07:39:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2023-11-23 07:39:05,135 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 07:39:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 07:39:05,135 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 07:39:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 07:39:05,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 07:39:05,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 07:39:05,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 07:39:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 07:39:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 07:39:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 07:39:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 07:39:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 07:39:05,492 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 07:39:05,495 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 07:39:06,437 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 07:39:06,542 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 07:39:06,542 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-23 07:39:06,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:39:06 BoogieIcfgContainer [2023-11-23 07:39:06,543 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 07:39:06,544 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 07:39:06,544 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 07:39:06,547 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 07:39:06,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:39:02" (1/3) ... [2023-11-23 07:39:06,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@172a9c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:39:06, skipping insertion in model container [2023-11-23 07:39:06,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:39:04" (2/3) ... [2023-11-23 07:39:06,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@172a9c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:39:06, skipping insertion in model container [2023-11-23 07:39:06,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:39:06" (3/3) ... [2023-11-23 07:39:06,549 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_ref_harness_negated.i [2023-11-23 07:39:06,561 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 07:39:06,561 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 07:39:06,596 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 07:39:06,601 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;@6a83356, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 07:39:06,601 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 07:39:06,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 504 states, 275 states have (on average 1.2763636363636364) internal successors, (351), 278 states have internal predecessors, (351), 193 states have call successors, (193), 34 states have call predecessors, (193), 34 states have return successors, (193), 193 states have call predecessors, (193), 193 states have call successors, (193) [2023-11-23 07:39:06,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-23 07:39:06,617 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:06,617 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:06,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:06,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:06,621 INFO L85 PathProgramCache]: Analyzing trace with hash -81013180, now seen corresponding path program 1 times [2023-11-23 07:39:06,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:06,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962648878] [2023-11-23 07:39:06,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:06,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:39:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:39:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:39:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:39:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:39:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:39:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:39:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:39:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 07:39:07,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:39:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 07:39:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:39:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-23 07:39:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 07:39:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 07:39:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 07:39:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 07:39:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 07:39:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 07:39:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-23 07:39:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-23 07:39:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-23 07:39:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-23 07:39:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:07,642 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2023-11-23 07:39:07,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:07,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962648878] [2023-11-23 07:39:07,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962648878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:07,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:07,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:39:07,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995977951] [2023-11-23 07:39:07,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:07,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:39:07,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:07,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:39:07,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:39:07,675 INFO L87 Difference]: Start difference. First operand has 504 states, 275 states have (on average 1.2763636363636364) internal successors, (351), 278 states have internal predecessors, (351), 193 states have call successors, (193), 34 states have call predecessors, (193), 34 states have return successors, (193), 193 states have call predecessors, (193), 193 states have call successors, (193) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 07:39:09,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:09,677 INFO L93 Difference]: Finished difference Result 1153 states and 1944 transitions. [2023-11-23 07:39:09,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:39:09,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 151 [2023-11-23 07:39:09,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:09,693 INFO L225 Difference]: With dead ends: 1153 [2023-11-23 07:39:09,694 INFO L226 Difference]: Without dead ends: 655 [2023-11-23 07:39:09,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:39:09,706 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 316 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 563 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 563 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:09,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 845 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [563 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-23 07:39:09,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2023-11-23 07:39:09,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 501. [2023-11-23 07:39:09,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 273 states have (on average 1.2527472527472527) internal successors, (342), 275 states have internal predecessors, (342), 193 states have call successors, (193), 34 states have call predecessors, (193), 33 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2023-11-23 07:39:09,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 726 transitions. [2023-11-23 07:39:09,806 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 726 transitions. Word has length 151 [2023-11-23 07:39:09,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:09,807 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 726 transitions. [2023-11-23 07:39:09,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 07:39:09,807 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 726 transitions. [2023-11-23 07:39:09,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-23 07:39:09,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:09,810 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:09,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 07:39:09,810 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:09,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:09,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1517658622, now seen corresponding path program 1 times [2023-11-23 07:39:09,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:09,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929784624] [2023-11-23 07:39:09,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:09,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:39:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:39:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:39:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:39:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:39:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:39:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:39:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:39:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 07:39:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:39:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 07:39:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:39:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-23 07:39:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 07:39:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 07:39:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 07:39:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 07:39:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 07:39:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 07:39:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-23 07:39:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-23 07:39:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-23 07:39:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-23 07:39:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:10,597 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-11-23 07:39:10,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:10,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929784624] [2023-11-23 07:39:10,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929784624] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:39:10,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815064599] [2023-11-23 07:39:10,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:10,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:10,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:10,600 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:10,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 07:39:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:11,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 2898 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 07:39:11,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:11,202 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-23 07:39:11,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:11,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815064599] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:11,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:39:11,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-23 07:39:11,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705672089] [2023-11-23 07:39:11,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:11,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:39:11,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:11,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:39:11,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:39:11,205 INFO L87 Difference]: Start difference. First operand 501 states and 726 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-23 07:39:11,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:11,440 INFO L93 Difference]: Finished difference Result 975 states and 1422 transitions. [2023-11-23 07:39:11,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:39:11,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 151 [2023-11-23 07:39:11,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:11,444 INFO L225 Difference]: With dead ends: 975 [2023-11-23 07:39:11,444 INFO L226 Difference]: Without dead ends: 503 [2023-11-23 07:39:11,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:39:11,447 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 32 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 2667 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:11,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 2667 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:39:11,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2023-11-23 07:39:11,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2023-11-23 07:39:11,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 274 states have (on average 1.2518248175182483) internal successors, (343), 277 states have internal predecessors, (343), 193 states have call successors, (193), 34 states have call predecessors, (193), 34 states have return successors, (199), 191 states have call predecessors, (199), 191 states have call successors, (199) [2023-11-23 07:39:11,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 735 transitions. [2023-11-23 07:39:11,513 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 735 transitions. Word has length 151 [2023-11-23 07:39:11,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:11,513 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 735 transitions. [2023-11-23 07:39:11,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-23 07:39:11,514 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 735 transitions. [2023-11-23 07:39:11,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-23 07:39:11,515 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:11,515 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 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] [2023-11-23 07:39:11,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:11,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:11,736 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:11,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:11,736 INFO L85 PathProgramCache]: Analyzing trace with hash 42121634, now seen corresponding path program 1 times [2023-11-23 07:39:11,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:11,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467250739] [2023-11-23 07:39:11,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:11,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:39:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:39:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:39:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:39:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:39:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:39:12,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:39:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:39:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:39:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 07:39:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 07:39:12,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:39:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:39:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:39:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 07:39:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 07:39:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 07:39:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 07:39:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 07:39:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 07:39:12,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-23 07:39:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 07:39:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 07:39:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-23 07:39:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-23 07:39:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:12,606 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2023-11-23 07:39:12,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:12,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467250739] [2023-11-23 07:39:12,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467250739] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:39:12,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196214107] [2023-11-23 07:39:12,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:12,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:12,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:12,615 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:12,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 07:39:13,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:13,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 3004 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 07:39:13,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:13,221 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-23 07:39:13,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:13,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196214107] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:13,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:39:13,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-11-23 07:39:13,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202656072] [2023-11-23 07:39:13,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:13,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:39:13,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:13,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:39:13,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:39:13,223 INFO L87 Difference]: Start difference. First operand 503 states and 735 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-23 07:39:13,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:13,795 INFO L93 Difference]: Finished difference Result 998 states and 1498 transitions. [2023-11-23 07:39:13,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:39:13,795 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 159 [2023-11-23 07:39:13,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:13,799 INFO L225 Difference]: With dead ends: 998 [2023-11-23 07:39:13,799 INFO L226 Difference]: Without dead ends: 524 [2023-11-23 07:39:13,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:39:13,801 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 83 mSDsluCounter, 3095 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 3741 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:13,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 3741 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:39:13,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-11-23 07:39:13,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 522. [2023-11-23 07:39:13,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 290 states have (on average 1.2586206896551724) internal successors, (365), 293 states have internal predecessors, (365), 195 states have call successors, (195), 34 states have call predecessors, (195), 35 states have return successors, (233), 194 states have call predecessors, (233), 193 states have call successors, (233) [2023-11-23 07:39:13,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 793 transitions. [2023-11-23 07:39:13,831 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 793 transitions. Word has length 159 [2023-11-23 07:39:13,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:13,832 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 793 transitions. [2023-11-23 07:39:13,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-23 07:39:13,832 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 793 transitions. [2023-11-23 07:39:13,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-23 07:39:13,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:13,834 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:13,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:14,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-23 07:39:14,048 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:14,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:14,049 INFO L85 PathProgramCache]: Analyzing trace with hash -384485153, now seen corresponding path program 1 times [2023-11-23 07:39:14,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:14,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117844129] [2023-11-23 07:39:14,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:14,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:14,114 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:14,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1534579365] [2023-11-23 07:39:14,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:14,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:14,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:14,115 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:14,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 07:39:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:14,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 3199 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 07:39:14,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:14,723 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-23 07:39:14,724 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:14,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:14,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117844129] [2023-11-23 07:39:14,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:14,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534579365] [2023-11-23 07:39:14,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534579365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:14,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:14,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:39:14,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901247580] [2023-11-23 07:39:14,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:14,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:39:14,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:14,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:39:14,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:39:14,725 INFO L87 Difference]: Start difference. First operand 522 states and 793 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-23 07:39:15,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:15,074 INFO L93 Difference]: Finished difference Result 1021 states and 1567 transitions. [2023-11-23 07:39:15,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:39:15,074 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 172 [2023-11-23 07:39:15,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:15,077 INFO L225 Difference]: With dead ends: 1021 [2023-11-23 07:39:15,078 INFO L226 Difference]: Without dead ends: 528 [2023-11-23 07:39:15,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:39:15,081 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 51 mSDsluCounter, 2619 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3295 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:15,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3295 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 07:39:15,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-11-23 07:39:15,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 522. [2023-11-23 07:39:15,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 290 states have (on average 1.2586206896551724) internal successors, (365), 293 states have internal predecessors, (365), 195 states have call successors, (195), 34 states have call predecessors, (195), 35 states have return successors, (233), 194 states have call predecessors, (233), 193 states have call successors, (233) [2023-11-23 07:39:15,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 793 transitions. [2023-11-23 07:39:15,108 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 793 transitions. Word has length 172 [2023-11-23 07:39:15,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:15,109 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 793 transitions. [2023-11-23 07:39:15,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-23 07:39:15,109 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 793 transitions. [2023-11-23 07:39:15,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-23 07:39:15,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:15,110 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 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, 1, 1, 1, 1, 1] [2023-11-23 07:39:15,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:15,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:15,314 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:15,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:15,314 INFO L85 PathProgramCache]: Analyzing trace with hash 936253390, now seen corresponding path program 1 times [2023-11-23 07:39:15,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:15,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802103588] [2023-11-23 07:39:15,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:15,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:15,404 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:15,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1481004669] [2023-11-23 07:39:15,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:15,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:15,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:15,416 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:15,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 07:39:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:16,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 3322 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 07:39:16,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:16,088 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-23 07:39:16,089 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:16,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:16,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802103588] [2023-11-23 07:39:16,090 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:16,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481004669] [2023-11-23 07:39:16,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481004669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:16,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:16,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:39:16,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282809270] [2023-11-23 07:39:16,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:16,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:39:16,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:16,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:39:16,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:39:16,092 INFO L87 Difference]: Start difference. First operand 522 states and 793 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-23 07:39:16,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:16,825 INFO L93 Difference]: Finished difference Result 1047 states and 1605 transitions. [2023-11-23 07:39:16,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:39:16,825 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 188 [2023-11-23 07:39:16,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:16,829 INFO L225 Difference]: With dead ends: 1047 [2023-11-23 07:39:16,829 INFO L226 Difference]: Without dead ends: 554 [2023-11-23 07:39:16,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:39:16,832 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 102 mSDsluCounter, 3684 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 4324 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:16,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 4324 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 07:39:16,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2023-11-23 07:39:16,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 522. [2023-11-23 07:39:16,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 290 states have (on average 1.2586206896551724) internal successors, (365), 293 states have internal predecessors, (365), 195 states have call successors, (195), 34 states have call predecessors, (195), 35 states have return successors, (233), 194 states have call predecessors, (233), 193 states have call successors, (233) [2023-11-23 07:39:16,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 793 transitions. [2023-11-23 07:39:16,857 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 793 transitions. Word has length 188 [2023-11-23 07:39:16,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:16,857 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 793 transitions. [2023-11-23 07:39:16,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-23 07:39:16,858 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 793 transitions. [2023-11-23 07:39:16,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-11-23 07:39:16,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:16,859 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:16,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:17,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:17,072 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:17,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:17,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1221100695, now seen corresponding path program 2 times [2023-11-23 07:39:17,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:17,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014858822] [2023-11-23 07:39:17,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:17,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:17,180 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:17,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1881703251] [2023-11-23 07:39:17,180 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:39:17,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:17,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:17,182 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:17,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 07:39:17,654 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 07:39:17,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:39:17,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 1862 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 07:39:17,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:17,693 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2023-11-23 07:39:17,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:17,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:17,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014858822] [2023-11-23 07:39:17,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:17,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881703251] [2023-11-23 07:39:17,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881703251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:17,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:17,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:39:17,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379128645] [2023-11-23 07:39:17,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:17,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:39:17,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:17,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:39:17,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:39:17,696 INFO L87 Difference]: Start difference. First operand 522 states and 793 transitions. Second operand has 6 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2023-11-23 07:39:17,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:17,977 INFO L93 Difference]: Finished difference Result 530 states and 801 transitions. [2023-11-23 07:39:17,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:39:17,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 201 [2023-11-23 07:39:17,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:17,981 INFO L225 Difference]: With dead ends: 530 [2023-11-23 07:39:17,981 INFO L226 Difference]: Without dead ends: 528 [2023-11-23 07:39:17,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:39:17,982 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 5 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3444 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:17,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3444 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:39:17,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-11-23 07:39:18,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 527. [2023-11-23 07:39:18,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 293 states have (on average 1.2559726962457338) internal successors, (368), 296 states have internal predecessors, (368), 196 states have call successors, (196), 35 states have call predecessors, (196), 36 states have return successors, (234), 195 states have call predecessors, (234), 194 states have call successors, (234) [2023-11-23 07:39:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 798 transitions. [2023-11-23 07:39:18,008 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 798 transitions. Word has length 201 [2023-11-23 07:39:18,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:18,009 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 798 transitions. [2023-11-23 07:39:18,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2023-11-23 07:39:18,009 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 798 transitions. [2023-11-23 07:39:18,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-23 07:39:18,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:18,011 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:18,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:18,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:18,224 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:18,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:18,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1288378246, now seen corresponding path program 3 times [2023-11-23 07:39:18,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:18,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599677066] [2023-11-23 07:39:18,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:18,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:18,282 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:18,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [53043172] [2023-11-23 07:39:18,282 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 07:39:18,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:18,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:18,284 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:18,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 07:39:18,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 07:39:18,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:39:18,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 2184 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 07:39:18,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:18,964 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-23 07:39:18,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:39:19,183 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-23 07:39:19,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:19,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599677066] [2023-11-23 07:39:19,183 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:19,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53043172] [2023-11-23 07:39:19,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53043172] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:39:19,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:39:19,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2023-11-23 07:39:19,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472282934] [2023-11-23 07:39:19,184 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 07:39:19,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:39:19,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:19,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:39:19,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:39:19,186 INFO L87 Difference]: Start difference. First operand 527 states and 798 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-23 07:39:20,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:20,192 INFO L93 Difference]: Finished difference Result 1008 states and 1548 transitions. [2023-11-23 07:39:20,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:39:20,193 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) Word has length 214 [2023-11-23 07:39:20,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:20,196 INFO L225 Difference]: With dead ends: 1008 [2023-11-23 07:39:20,196 INFO L226 Difference]: Without dead ends: 534 [2023-11-23 07:39:20,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:39:20,199 INFO L413 NwaCegarLoop]: 664 mSDtfsCounter, 21 mSDsluCounter, 3789 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4453 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:20,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 4453 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 07:39:20,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-11-23 07:39:20,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 532. [2023-11-23 07:39:20,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 296 states have (on average 1.2533783783783783) internal successors, (371), 298 states have internal predecessors, (371), 198 states have call successors, (198), 36 states have call predecessors, (198), 36 states have return successors, (236), 197 states have call predecessors, (236), 196 states have call successors, (236) [2023-11-23 07:39:20,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 805 transitions. [2023-11-23 07:39:20,226 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 805 transitions. Word has length 214 [2023-11-23 07:39:20,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:20,227 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 805 transitions. [2023-11-23 07:39:20,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-23 07:39:20,227 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 805 transitions. [2023-11-23 07:39:20,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-11-23 07:39:20,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:20,229 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:20,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:20,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:20,443 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:20,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:20,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1697797857, now seen corresponding path program 4 times [2023-11-23 07:39:20,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:20,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939748777] [2023-11-23 07:39:20,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:20,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:20,499 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:20,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [387371220] [2023-11-23 07:39:20,500 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 07:39:20,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:20,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:20,512 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:20,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 07:39:20,940 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 07:39:20,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:39:20,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 1609 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 07:39:20,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:20,999 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2023-11-23 07:39:20,999 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:20,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:20,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939748777] [2023-11-23 07:39:21,000 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:21,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387371220] [2023-11-23 07:39:21,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387371220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:21,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:21,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:39:21,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315858899] [2023-11-23 07:39:21,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:21,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:39:21,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:21,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:39:21,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:39:21,043 INFO L87 Difference]: Start difference. First operand 532 states and 805 transitions. Second operand has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2023-11-23 07:39:21,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:21,778 INFO L93 Difference]: Finished difference Result 1121 states and 1716 transitions. [2023-11-23 07:39:21,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:39:21,779 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) Word has length 227 [2023-11-23 07:39:21,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:21,782 INFO L225 Difference]: With dead ends: 1121 [2023-11-23 07:39:21,782 INFO L226 Difference]: Without dead ends: 636 [2023-11-23 07:39:21,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:39:21,785 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 123 mSDsluCounter, 4140 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 4870 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:21,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 4870 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 07:39:21,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2023-11-23 07:39:21,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 628. [2023-11-23 07:39:21,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 361 states have (on average 1.2797783933518005) internal successors, (462), 365 states have internal predecessors, (462), 227 states have call successors, (227), 37 states have call predecessors, (227), 38 states have return successors, (279), 225 states have call predecessors, (279), 225 states have call successors, (279) [2023-11-23 07:39:21,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 968 transitions. [2023-11-23 07:39:21,813 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 968 transitions. Word has length 227 [2023-11-23 07:39:21,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:21,814 INFO L495 AbstractCegarLoop]: Abstraction has 628 states and 968 transitions. [2023-11-23 07:39:21,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2023-11-23 07:39:21,814 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 968 transitions. [2023-11-23 07:39:21,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-11-23 07:39:21,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:21,816 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:21,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:22,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:22,031 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:22,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:22,032 INFO L85 PathProgramCache]: Analyzing trace with hash -585201213, now seen corresponding path program 1 times [2023-11-23 07:39:22,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:22,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825415297] [2023-11-23 07:39:22,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:22,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:22,095 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:22,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [447659376] [2023-11-23 07:39:22,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:22,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:22,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:22,097 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:22,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 07:39:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:22,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 4013 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 07:39:22,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:22,832 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2023-11-23 07:39:22,832 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:22,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:22,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825415297] [2023-11-23 07:39:22,833 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:22,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447659376] [2023-11-23 07:39:22,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447659376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:22,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:22,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 07:39:22,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736587648] [2023-11-23 07:39:22,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:22,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:39:22,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:22,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:39:22,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:39:22,858 INFO L87 Difference]: Start difference. First operand 628 states and 968 transitions. Second operand has 9 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2023-11-23 07:39:23,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:23,585 INFO L93 Difference]: Finished difference Result 1153 states and 1774 transitions. [2023-11-23 07:39:23,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:39:23,586 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 235 [2023-11-23 07:39:23,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:23,591 INFO L225 Difference]: With dead ends: 1153 [2023-11-23 07:39:23,591 INFO L226 Difference]: Without dead ends: 641 [2023-11-23 07:39:23,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:39:23,595 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 175 mSDsluCounter, 4207 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 4845 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:23,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 4845 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 07:39:23,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2023-11-23 07:39:23,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2023-11-23 07:39:23,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 373 states have (on average 1.2815013404825737) internal successors, (478), 377 states have internal predecessors, (478), 227 states have call successors, (227), 37 states have call predecessors, (227), 39 states have return successors, (281), 226 states have call predecessors, (281), 225 states have call successors, (281) [2023-11-23 07:39:23,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 986 transitions. [2023-11-23 07:39:23,627 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 986 transitions. Word has length 235 [2023-11-23 07:39:23,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:23,627 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 986 transitions. [2023-11-23 07:39:23,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2023-11-23 07:39:23,628 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 986 transitions. [2023-11-23 07:39:23,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-11-23 07:39:23,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:23,629 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:23,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:23,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-23 07:39:23,840 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:23,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:23,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1089268442, now seen corresponding path program 2 times [2023-11-23 07:39:23,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:23,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165692644] [2023-11-23 07:39:23,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:23,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:23,912 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:23,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [801752785] [2023-11-23 07:39:23,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:39:23,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:23,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:23,913 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:23,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 07:39:24,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:39:24,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:39:24,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 4208 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 07:39:24,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:24,964 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2023-11-23 07:39:24,964 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:24,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:24,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165692644] [2023-11-23 07:39:24,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:24,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801752785] [2023-11-23 07:39:24,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801752785] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:24,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:24,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:39:24,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810507887] [2023-11-23 07:39:24,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:24,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:39:24,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:24,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:39:24,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:39:24,970 INFO L87 Difference]: Start difference. First operand 641 states and 986 transitions. Second operand has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2023-11-23 07:39:25,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:25,453 INFO L93 Difference]: Finished difference Result 1156 states and 1780 transitions. [2023-11-23 07:39:25,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:39:25,454 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 248 [2023-11-23 07:39:25,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:25,458 INFO L225 Difference]: With dead ends: 1156 [2023-11-23 07:39:25,458 INFO L226 Difference]: Without dead ends: 556 [2023-11-23 07:39:25,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:39:25,462 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 143 mSDsluCounter, 3793 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 4461 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:25,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 4461 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 07:39:25,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-11-23 07:39:25,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 548. [2023-11-23 07:39:25,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 310 states have (on average 1.2580645161290323) internal successors, (390), 312 states have internal predecessors, (390), 199 states have call successors, (199), 36 states have call predecessors, (199), 37 states have return successors, (241), 199 states have call predecessors, (241), 197 states have call successors, (241) [2023-11-23 07:39:25,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 830 transitions. [2023-11-23 07:39:25,495 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 830 transitions. Word has length 248 [2023-11-23 07:39:25,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:25,496 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 830 transitions. [2023-11-23 07:39:25,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2023-11-23 07:39:25,496 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 830 transitions. [2023-11-23 07:39:25,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-23 07:39:25,498 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:25,499 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 07:39:25,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:25,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 07:39:25,700 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:25,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:25,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1885699221, now seen corresponding path program 1 times [2023-11-23 07:39:25,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:25,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926980648] [2023-11-23 07:39:25,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:25,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:25,777 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:25,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1773700276] [2023-11-23 07:39:25,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:25,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:25,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:25,779 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:25,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 07:39:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:26,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 4331 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 07:39:26,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:26,631 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 274 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-11-23 07:39:26,631 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:26,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:26,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926980648] [2023-11-23 07:39:26,631 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:26,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773700276] [2023-11-23 07:39:26,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773700276] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:26,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:26,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 07:39:26,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81168742] [2023-11-23 07:39:26,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:26,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:39:26,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:26,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:39:26,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:39:26,633 INFO L87 Difference]: Start difference. First operand 548 states and 830 transitions. Second operand has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 6 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (31), 5 states have call predecessors, (31), 6 states have call successors, (31) [2023-11-23 07:39:27,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:27,559 INFO L93 Difference]: Finished difference Result 1071 states and 1625 transitions. [2023-11-23 07:39:27,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:39:27,560 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 6 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (31), 5 states have call predecessors, (31), 6 states have call successors, (31) Word has length 264 [2023-11-23 07:39:27,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:27,563 INFO L225 Difference]: With dead ends: 1071 [2023-11-23 07:39:27,563 INFO L226 Difference]: Without dead ends: 564 [2023-11-23 07:39:27,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:39:27,566 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 194 mSDsluCounter, 4776 mSDsCounter, 0 mSdLazyCounter, 931 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 5408 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:27,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 5408 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 931 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 07:39:27,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2023-11-23 07:39:27,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 532. [2023-11-23 07:39:27,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 296 states have (on average 1.2533783783783783) internal successors, (371), 298 states have internal predecessors, (371), 198 states have call successors, (198), 36 states have call predecessors, (198), 36 states have return successors, (232), 197 states have call predecessors, (232), 196 states have call successors, (232) [2023-11-23 07:39:27,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 801 transitions. [2023-11-23 07:39:27,594 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 801 transitions. Word has length 264 [2023-11-23 07:39:27,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:27,595 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 801 transitions. [2023-11-23 07:39:27,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 6 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (31), 5 states have call predecessors, (31), 6 states have call successors, (31) [2023-11-23 07:39:27,595 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 801 transitions. [2023-11-23 07:39:27,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-11-23 07:39:27,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:27,597 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:27,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:27,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 07:39:27,812 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:27,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:27,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1748065846, now seen corresponding path program 2 times [2023-11-23 07:39:27,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:27,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281047434] [2023-11-23 07:39:27,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:27,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:27,888 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:27,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [192138024] [2023-11-23 07:39:27,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:39:27,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:27,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:27,904 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:27,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 07:39:28,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:39:28,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:39:28,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 4526 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 07:39:28,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:29,020 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2023-11-23 07:39:29,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:29,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:29,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281047434] [2023-11-23 07:39:29,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:29,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192138024] [2023-11-23 07:39:29,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192138024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:29,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:29,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:39:29,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53793019] [2023-11-23 07:39:29,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:29,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:39:29,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:29,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:39:29,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:39:29,022 INFO L87 Difference]: Start difference. First operand 532 states and 801 transitions. Second operand has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 5 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-23 07:39:29,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:29,737 INFO L93 Difference]: Finished difference Result 1017 states and 1532 transitions. [2023-11-23 07:39:29,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:39:29,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 5 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) Word has length 277 [2023-11-23 07:39:29,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:29,754 INFO L225 Difference]: With dead ends: 1017 [2023-11-23 07:39:29,754 INFO L226 Difference]: Without dead ends: 532 [2023-11-23 07:39:29,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:39:29,757 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 126 mSDsluCounter, 3650 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 4298 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:29,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 4298 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 07:39:29,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-11-23 07:39:29,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2023-11-23 07:39:29,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 296 states have (on average 1.2533783783783783) internal successors, (371), 298 states have internal predecessors, (371), 198 states have call successors, (198), 36 states have call predecessors, (198), 36 states have return successors, (229), 197 states have call predecessors, (229), 196 states have call successors, (229) [2023-11-23 07:39:29,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 798 transitions. [2023-11-23 07:39:29,819 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 798 transitions. Word has length 277 [2023-11-23 07:39:29,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:29,819 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 798 transitions. [2023-11-23 07:39:29,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 5 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-23 07:39:29,819 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 798 transitions. [2023-11-23 07:39:29,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-11-23 07:39:29,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:29,823 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 07:39:29,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:30,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 07:39:30,028 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:30,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:30,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1690092397, now seen corresponding path program 1 times [2023-11-23 07:39:30,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:30,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530835172] [2023-11-23 07:39:30,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:30,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:30,091 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:30,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [423143476] [2023-11-23 07:39:30,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:30,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:30,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:30,093 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:30,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 07:39:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:30,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 4721 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-23 07:39:30,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:31,018 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 266 proven. 2 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2023-11-23 07:39:31,018 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:39:31,231 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2023-11-23 07:39:31,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:31,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530835172] [2023-11-23 07:39:31,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:31,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423143476] [2023-11-23 07:39:31,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423143476] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:39:31,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:39:31,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2023-11-23 07:39:31,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8433309] [2023-11-23 07:39:31,232 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 07:39:31,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:39:31,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:31,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:39:31,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:39:31,234 INFO L87 Difference]: Start difference. First operand 532 states and 798 transitions. Second operand has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 5 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 6 states have call predecessors, (34), 5 states have call successors, (34) [2023-11-23 07:39:31,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:31,977 INFO L93 Difference]: Finished difference Result 1093 states and 1650 transitions. [2023-11-23 07:39:31,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:39:31,977 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 5 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 6 states have call predecessors, (34), 5 states have call successors, (34) Word has length 290 [2023-11-23 07:39:31,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:31,980 INFO L225 Difference]: With dead ends: 1093 [2023-11-23 07:39:31,980 INFO L226 Difference]: Without dead ends: 611 [2023-11-23 07:39:31,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 570 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:39:31,983 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 110 mSDsluCounter, 5827 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 6565 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:31,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 6565 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 07:39:31,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2023-11-23 07:39:32,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 606. [2023-11-23 07:39:32,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 337 states have (on average 1.261127596439169) internal successors, (425), 340 states have internal predecessors, (425), 229 states have call successors, (229), 37 states have call predecessors, (229), 38 states have return successors, (264), 228 states have call predecessors, (264), 227 states have call successors, (264) [2023-11-23 07:39:32,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 918 transitions. [2023-11-23 07:39:32,055 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 918 transitions. Word has length 290 [2023-11-23 07:39:32,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:32,055 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 918 transitions. [2023-11-23 07:39:32,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 5 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 6 states have call predecessors, (34), 5 states have call successors, (34) [2023-11-23 07:39:32,056 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 918 transitions. [2023-11-23 07:39:32,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-11-23 07:39:32,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:32,060 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 07:39:32,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:32,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 07:39:32,266 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:32,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:32,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1925602645, now seen corresponding path program 1 times [2023-11-23 07:39:32,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:32,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120930193] [2023-11-23 07:39:32,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:32,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:32,333 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:32,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [358604624] [2023-11-23 07:39:32,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:32,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:32,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:32,334 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:32,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 07:39:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:33,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 4718 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-23 07:39:33,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:33,218 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 324 proven. 2 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-23 07:39:33,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:39:33,416 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2023-11-23 07:39:33,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:33,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120930193] [2023-11-23 07:39:33,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:33,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358604624] [2023-11-23 07:39:33,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358604624] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:39:33,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:39:33,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2023-11-23 07:39:33,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186265408] [2023-11-23 07:39:33,418 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 07:39:33,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:39:33,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:33,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:39:33,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:39:33,419 INFO L87 Difference]: Start difference. First operand 606 states and 918 transitions. Second operand has 9 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (37), 5 states have call predecessors, (37), 4 states have call successors, (37) [2023-11-23 07:39:34,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:34,030 INFO L93 Difference]: Finished difference Result 1101 states and 1660 transitions. [2023-11-23 07:39:34,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:39:34,031 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (37), 5 states have call predecessors, (37), 4 states have call successors, (37) Word has length 290 [2023-11-23 07:39:34,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:34,034 INFO L225 Difference]: With dead ends: 1101 [2023-11-23 07:39:34,034 INFO L226 Difference]: Without dead ends: 611 [2023-11-23 07:39:34,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 580 GetRequests, 571 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:39:34,037 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 96 mSDsluCounter, 5063 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 5794 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:34,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 5794 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:39:34,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2023-11-23 07:39:34,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 606. [2023-11-23 07:39:34,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 337 states have (on average 1.258160237388724) internal successors, (424), 340 states have internal predecessors, (424), 229 states have call successors, (229), 37 states have call predecessors, (229), 38 states have return successors, (264), 228 states have call predecessors, (264), 227 states have call successors, (264) [2023-11-23 07:39:34,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 917 transitions. [2023-11-23 07:39:34,067 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 917 transitions. Word has length 290 [2023-11-23 07:39:34,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:34,068 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 917 transitions. [2023-11-23 07:39:34,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (37), 5 states have call predecessors, (37), 4 states have call successors, (37) [2023-11-23 07:39:34,068 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 917 transitions. [2023-11-23 07:39:34,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2023-11-23 07:39:34,069 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:34,070 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 07:39:34,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-23 07:39:34,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 07:39:34,289 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:34,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:34,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1023310918, now seen corresponding path program 1 times [2023-11-23 07:39:34,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:34,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646886226] [2023-11-23 07:39:34,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:34,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:34,389 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:34,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [30948397] [2023-11-23 07:39:34,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:34,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:34,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:34,391 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:34,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 07:39:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:35,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 4755 conjuncts, 99 conjunts are in the unsatisfiable core [2023-11-23 07:39:35,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:35,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:39:35,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:39:35,854 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-11-23 07:39:35,855 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:35,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:35,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646886226] [2023-11-23 07:39:35,855 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:35,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30948397] [2023-11-23 07:39:35,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30948397] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:35,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:35,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-23 07:39:35,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464481231] [2023-11-23 07:39:35,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:35,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 07:39:35,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:35,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 07:39:35,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:39:35,858 INFO L87 Difference]: Start difference. First operand 606 states and 917 transitions. Second operand has 14 states, 14 states have (on average 8.0) internal successors, (112), 14 states have internal predecessors, (112), 7 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-11-23 07:39:41,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:41,772 INFO L93 Difference]: Finished difference Result 1411 states and 2252 transitions. [2023-11-23 07:39:41,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 07:39:41,773 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.0) internal successors, (112), 14 states have internal predecessors, (112), 7 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 300 [2023-11-23 07:39:41,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:41,778 INFO L225 Difference]: With dead ends: 1411 [2023-11-23 07:39:41,778 INFO L226 Difference]: Without dead ends: 834 [2023-11-23 07:39:41,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2023-11-23 07:39:41,782 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 383 mSDsluCounter, 2932 mSDsCounter, 0 mSdLazyCounter, 6658 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 3543 SdHoareTripleChecker+Invalid, 6902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 6658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:41,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 3543 Invalid, 6902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 6658 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-11-23 07:39:41,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2023-11-23 07:39:41,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 631. [2023-11-23 07:39:41,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 361 states have (on average 1.265927977839335) internal successors, (457), 363 states have internal predecessors, (457), 229 states have call successors, (229), 37 states have call predecessors, (229), 39 states have return successors, (299), 230 states have call predecessors, (299), 227 states have call successors, (299) [2023-11-23 07:39:41,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 985 transitions. [2023-11-23 07:39:41,821 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 985 transitions. Word has length 300 [2023-11-23 07:39:41,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:41,822 INFO L495 AbstractCegarLoop]: Abstraction has 631 states and 985 transitions. [2023-11-23 07:39:41,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.0) internal successors, (112), 14 states have internal predecessors, (112), 7 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-11-23 07:39:41,822 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 985 transitions. [2023-11-23 07:39:41,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2023-11-23 07:39:41,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:41,824 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:41,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:42,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:42,045 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:42,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:42,046 INFO L85 PathProgramCache]: Analyzing trace with hash 226658366, now seen corresponding path program 1 times [2023-11-23 07:39:42,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:42,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180676289] [2023-11-23 07:39:42,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:42,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:42,110 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:42,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1473961751] [2023-11-23 07:39:42,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:42,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:42,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:42,112 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:42,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 07:39:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:42,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 4745 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 07:39:42,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:42,986 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 274 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2023-11-23 07:39:42,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:42,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:42,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180676289] [2023-11-23 07:39:42,986 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:42,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473961751] [2023-11-23 07:39:42,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473961751] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:42,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:42,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:39:42,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191654280] [2023-11-23 07:39:42,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:42,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:39:42,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:42,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:39:42,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:39:42,988 INFO L87 Difference]: Start difference. First operand 631 states and 985 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-23 07:39:43,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:43,163 INFO L93 Difference]: Finished difference Result 1236 states and 2013 transitions. [2023-11-23 07:39:43,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:39:43,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 300 [2023-11-23 07:39:43,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:43,167 INFO L225 Difference]: With dead ends: 1236 [2023-11-23 07:39:43,168 INFO L226 Difference]: Without dead ends: 634 [2023-11-23 07:39:43,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:39:43,172 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 7 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2089 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:43,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2089 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:39:43,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2023-11-23 07:39:43,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 631. [2023-11-23 07:39:43,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 361 states have (on average 1.263157894736842) internal successors, (456), 363 states have internal predecessors, (456), 229 states have call successors, (229), 37 states have call predecessors, (229), 39 states have return successors, (299), 230 states have call predecessors, (299), 227 states have call successors, (299) [2023-11-23 07:39:43,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 984 transitions. [2023-11-23 07:39:43,210 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 984 transitions. Word has length 300 [2023-11-23 07:39:43,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:43,211 INFO L495 AbstractCegarLoop]: Abstraction has 631 states and 984 transitions. [2023-11-23 07:39:43,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-23 07:39:43,211 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 984 transitions. [2023-11-23 07:39:43,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-11-23 07:39:43,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:43,213 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:43,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:43,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-23 07:39:43,424 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:43,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:43,425 INFO L85 PathProgramCache]: Analyzing trace with hash 435139078, now seen corresponding path program 1 times [2023-11-23 07:39:43,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:43,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693145362] [2023-11-23 07:39:43,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:43,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:43,496 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:43,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [232596015] [2023-11-23 07:39:43,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:43,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:43,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:43,497 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:43,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 07:39:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:44,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 4765 conjuncts, 57 conjunts are in the unsatisfiable core [2023-11-23 07:39:44,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:44,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:39:45,183 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2023-11-23 07:39:45,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:45,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:45,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693145362] [2023-11-23 07:39:45,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:45,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232596015] [2023-11-23 07:39:45,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232596015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:45,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:45,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 07:39:45,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732871656] [2023-11-23 07:39:45,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:45,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:39:45,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:45,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:39:45,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:39:45,186 INFO L87 Difference]: Start difference. First operand 631 states and 984 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 6 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) [2023-11-23 07:39:48,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:48,287 INFO L93 Difference]: Finished difference Result 1457 states and 2344 transitions. [2023-11-23 07:39:48,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:39:48,288 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 6 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) Word has length 304 [2023-11-23 07:39:48,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:48,292 INFO L225 Difference]: With dead ends: 1457 [2023-11-23 07:39:48,292 INFO L226 Difference]: Without dead ends: 855 [2023-11-23 07:39:48,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:39:48,295 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 381 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 3395 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 2222 SdHoareTripleChecker+Invalid, 3643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 3395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:48,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 2222 Invalid, 3643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 3395 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-23 07:39:48,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2023-11-23 07:39:48,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 635. [2023-11-23 07:39:48,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 365 states have (on average 1.2657534246575342) internal successors, (462), 367 states have internal predecessors, (462), 229 states have call successors, (229), 37 states have call predecessors, (229), 39 states have return successors, (299), 230 states have call predecessors, (299), 227 states have call successors, (299) [2023-11-23 07:39:48,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 990 transitions. [2023-11-23 07:39:48,345 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 990 transitions. Word has length 304 [2023-11-23 07:39:48,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:48,345 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 990 transitions. [2023-11-23 07:39:48,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 6 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) [2023-11-23 07:39:48,346 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 990 transitions. [2023-11-23 07:39:48,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-11-23 07:39:48,348 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:48,348 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 07:39:48,373 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-23 07:39:48,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 07:39:48,564 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:48,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:48,565 INFO L85 PathProgramCache]: Analyzing trace with hash 199757245, now seen corresponding path program 1 times [2023-11-23 07:39:48,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:48,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489201565] [2023-11-23 07:39:48,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:48,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:48,653 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:48,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [31225452] [2023-11-23 07:39:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:48,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:48,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:48,655 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:48,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-23 07:39:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:49,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 4735 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 07:39:49,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:49,601 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 304 proven. 2 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-11-23 07:39:49,601 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:39:49,779 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2023-11-23 07:39:49,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:49,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489201565] [2023-11-23 07:39:49,779 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:49,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31225452] [2023-11-23 07:39:49,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31225452] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:39:49,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:39:49,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2023-11-23 07:39:49,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324091551] [2023-11-23 07:39:49,780 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 07:39:49,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:39:49,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:49,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:39:49,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:39:49,782 INFO L87 Difference]: Start difference. First operand 635 states and 990 transitions. Second operand has 7 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-23 07:39:50,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:50,167 INFO L93 Difference]: Finished difference Result 1167 states and 1813 transitions. [2023-11-23 07:39:50,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:39:50,167 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) Word has length 294 [2023-11-23 07:39:50,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:50,170 INFO L225 Difference]: With dead ends: 1167 [2023-11-23 07:39:50,170 INFO L226 Difference]: Without dead ends: 640 [2023-11-23 07:39:50,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 581 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:39:50,173 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 5 mSDsluCounter, 3480 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4177 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:50,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4177 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 07:39:50,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2023-11-23 07:39:50,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 635. [2023-11-23 07:39:50,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 365 states have (on average 1.263013698630137) internal successors, (461), 367 states have internal predecessors, (461), 229 states have call successors, (229), 37 states have call predecessors, (229), 39 states have return successors, (299), 230 states have call predecessors, (299), 227 states have call successors, (299) [2023-11-23 07:39:50,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 989 transitions. [2023-11-23 07:39:50,205 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 989 transitions. Word has length 294 [2023-11-23 07:39:50,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:50,206 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 989 transitions. [2023-11-23 07:39:50,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-23 07:39:50,206 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 989 transitions. [2023-11-23 07:39:50,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-11-23 07:39:50,208 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:50,208 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 07:39:50,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-23 07:39:50,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 07:39:50,428 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:50,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:50,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1723493185, now seen corresponding path program 1 times [2023-11-23 07:39:50,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:50,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457275993] [2023-11-23 07:39:50,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:50,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:50,490 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:50,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [469031983] [2023-11-23 07:39:50,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:50,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:50,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:50,492 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:50,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-23 07:39:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:51,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 4732 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 07:39:51,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:51,731 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 334 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-23 07:39:51,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:51,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:51,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457275993] [2023-11-23 07:39:51,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:51,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469031983] [2023-11-23 07:39:51,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469031983] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:51,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:51,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:39:51,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118650806] [2023-11-23 07:39:51,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:51,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:39:51,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:51,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:39:51,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:39:51,734 INFO L87 Difference]: Start difference. First operand 635 states and 989 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 2 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-23 07:39:52,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:39:52,041 INFO L93 Difference]: Finished difference Result 1154 states and 1795 transitions. [2023-11-23 07:39:52,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:39:52,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 2 states have call predecessors, (29), 3 states have call successors, (29) Word has length 294 [2023-11-23 07:39:52,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:39:52,045 INFO L225 Difference]: With dead ends: 1154 [2023-11-23 07:39:52,045 INFO L226 Difference]: Without dead ends: 563 [2023-11-23 07:39:52,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:39:52,047 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 2 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2532 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:39:52,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2532 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 07:39:52,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-11-23 07:39:52,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2023-11-23 07:39:52,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 325 states have (on average 1.2584615384615385) internal successors, (409), 327 states have internal predecessors, (409), 198 states have call successors, (198), 36 states have call predecessors, (198), 38 states have return successors, (263), 199 states have call predecessors, (263), 196 states have call successors, (263) [2023-11-23 07:39:52,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 870 transitions. [2023-11-23 07:39:52,075 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 870 transitions. Word has length 294 [2023-11-23 07:39:52,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:39:52,076 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 870 transitions. [2023-11-23 07:39:52,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 2 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-23 07:39:52,076 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 870 transitions. [2023-11-23 07:39:52,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-11-23 07:39:52,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:39:52,077 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:39:52,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-23 07:39:52,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:52,284 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:39:52,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:39:52,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1912960138, now seen corresponding path program 1 times [2023-11-23 07:39:52,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:39:52,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180997483] [2023-11-23 07:39:52,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:52,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:39:52,348 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:39:52,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1386109096] [2023-11-23 07:39:52,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:39:52,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:39:52,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:39:52,350 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:39:52,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-23 07:39:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:39:54,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 4775 conjuncts, 94 conjunts are in the unsatisfiable core [2023-11-23 07:39:54,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:39:54,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:39:54,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:39:54,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:39:55,151 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2023-11-23 07:39:55,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:39:55,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:39:55,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180997483] [2023-11-23 07:39:55,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:39:55,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386109096] [2023-11-23 07:39:55,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386109096] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:39:55,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:39:55,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-23 07:39:55,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412100152] [2023-11-23 07:39:55,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:39:55,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 07:39:55,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:39:55,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 07:39:55,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:39:55,153 INFO L87 Difference]: Start difference. First operand 563 states and 870 transitions. Second operand has 15 states, 15 states have (on average 7.6) internal successors, (114), 15 states have internal predecessors, (114), 7 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-11-23 07:40:01,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:01,552 INFO L93 Difference]: Finished difference Result 1280 states and 2074 transitions. [2023-11-23 07:40:01,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-23 07:40:01,553 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.6) internal successors, (114), 15 states have internal predecessors, (114), 7 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 304 [2023-11-23 07:40:01,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:01,557 INFO L225 Difference]: With dead ends: 1280 [2023-11-23 07:40:01,557 INFO L226 Difference]: Without dead ends: 746 [2023-11-23 07:40:01,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=130, Invalid=520, Unknown=0, NotChecked=0, Total=650 [2023-11-23 07:40:01,566 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 385 mSDsluCounter, 2595 mSDsCounter, 0 mSdLazyCounter, 6552 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 3174 SdHoareTripleChecker+Invalid, 6797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 6552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:01,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 3174 Invalid, 6797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 6552 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-11-23 07:40:01,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2023-11-23 07:40:01,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 565. [2023-11-23 07:40:01,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 327 states have (on average 1.2599388379204892) internal successors, (412), 329 states have internal predecessors, (412), 198 states have call successors, (198), 36 states have call predecessors, (198), 38 states have return successors, (263), 199 states have call predecessors, (263), 196 states have call successors, (263) [2023-11-23 07:40:01,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 873 transitions. [2023-11-23 07:40:01,616 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 873 transitions. Word has length 304 [2023-11-23 07:40:01,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:01,617 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 873 transitions. [2023-11-23 07:40:01,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.6) internal successors, (114), 15 states have internal predecessors, (114), 7 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-11-23 07:40:01,618 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 873 transitions. [2023-11-23 07:40:01,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-11-23 07:40:01,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:01,620 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:01,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:01,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:01,848 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:01,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:01,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1117712498, now seen corresponding path program 1 times [2023-11-23 07:40:01,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:01,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972536558] [2023-11-23 07:40:01,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:01,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:01,929 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:01,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2080341787] [2023-11-23 07:40:01,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:01,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:01,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:01,930 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:01,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-23 07:40:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:03,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 4765 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 07:40:03,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:03,576 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 373 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-23 07:40:03,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:03,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:03,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972536558] [2023-11-23 07:40:03,577 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:03,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080341787] [2023-11-23 07:40:03,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080341787] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:03,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:03,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:40:03,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468017882] [2023-11-23 07:40:03,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:03,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:40:03,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:03,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:40:03,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:40:03,579 INFO L87 Difference]: Start difference. First operand 565 states and 873 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-23 07:40:04,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:04,134 INFO L93 Difference]: Finished difference Result 1101 states and 1769 transitions. [2023-11-23 07:40:04,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:40:04,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 304 [2023-11-23 07:40:04,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:04,138 INFO L225 Difference]: With dead ends: 1101 [2023-11-23 07:40:04,138 INFO L226 Difference]: Without dead ends: 565 [2023-11-23 07:40:04,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:40:04,142 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 10 mSDsluCounter, 2015 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:04,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2744 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:40:04,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2023-11-23 07:40:04,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 565. [2023-11-23 07:40:04,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 327 states have (on average 1.2568807339449541) internal successors, (411), 329 states have internal predecessors, (411), 198 states have call successors, (198), 36 states have call predecessors, (198), 38 states have return successors, (263), 199 states have call predecessors, (263), 196 states have call successors, (263) [2023-11-23 07:40:04,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 872 transitions. [2023-11-23 07:40:04,192 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 872 transitions. Word has length 304 [2023-11-23 07:40:04,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:04,193 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 872 transitions. [2023-11-23 07:40:04,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-23 07:40:04,193 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 872 transitions. [2023-11-23 07:40:04,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-11-23 07:40:04,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:04,196 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:04,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:04,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-23 07:40:04,412 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:04,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:04,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1773210870, now seen corresponding path program 1 times [2023-11-23 07:40:04,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:04,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362412417] [2023-11-23 07:40:04,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:04,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:04,492 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:04,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1796077833] [2023-11-23 07:40:04,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:04,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:04,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:04,493 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:04,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-23 07:40:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:06,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 4775 conjuncts, 84 conjunts are in the unsatisfiable core [2023-11-23 07:40:06,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:06,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:40:06,877 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 94 treesize of output 70 [2023-11-23 07:40:06,886 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 70 treesize of output 46 [2023-11-23 07:40:06,963 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 367 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-11-23 07:40:06,964 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:06,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:06,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362412417] [2023-11-23 07:40:06,964 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:06,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796077833] [2023-11-23 07:40:06,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796077833] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:06,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:06,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 07:40:06,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045845024] [2023-11-23 07:40:06,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:06,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 07:40:06,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:06,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 07:40:06,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:40:06,966 INFO L87 Difference]: Start difference. First operand 565 states and 872 transitions. Second operand has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 11 states have internal predecessors, (108), 6 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) [2023-11-23 07:40:09,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:40:09,673 INFO L93 Difference]: Finished difference Result 1291 states and 2042 transitions. [2023-11-23 07:40:09,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:40:09,674 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 11 states have internal predecessors, (108), 6 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) Word has length 304 [2023-11-23 07:40:09,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:40:09,678 INFO L225 Difference]: With dead ends: 1291 [2023-11-23 07:40:09,678 INFO L226 Difference]: Without dead ends: 755 [2023-11-23 07:40:09,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:40:09,681 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 367 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 2924 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 3168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 2924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:40:09,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 2056 Invalid, 3168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 2924 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-23 07:40:09,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2023-11-23 07:40:09,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 569. [2023-11-23 07:40:09,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 331 states have (on average 1.2598187311178248) internal successors, (417), 333 states have internal predecessors, (417), 198 states have call successors, (198), 36 states have call predecessors, (198), 38 states have return successors, (263), 199 states have call predecessors, (263), 196 states have call successors, (263) [2023-11-23 07:40:09,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 878 transitions. [2023-11-23 07:40:09,715 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 878 transitions. Word has length 304 [2023-11-23 07:40:09,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:40:09,715 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 878 transitions. [2023-11-23 07:40:09,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 11 states have internal predecessors, (108), 6 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) [2023-11-23 07:40:09,715 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 878 transitions. [2023-11-23 07:40:09,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-11-23 07:40:09,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:40:09,717 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:40:09,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-23 07:40:09,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-23 07:40:09,932 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:40:09,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:40:09,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1802895614, now seen corresponding path program 1 times [2023-11-23 07:40:09,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:40:09,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250058266] [2023-11-23 07:40:09,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:09,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:40:09,996 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:40:09,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1650978166] [2023-11-23 07:40:09,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:40:09,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:40:09,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:40:09,998 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:40:10,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-23 07:40:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:40:28,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 4759 conjuncts, 138 conjunts are in the unsatisfiable core [2023-11-23 07:40:28,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:40:29,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-23 07:40:31,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-23 07:40:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2023-11-23 07:40:35,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:40:35,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:40:35,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250058266] [2023-11-23 07:40:35,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:40:35,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650978166] [2023-11-23 07:40:35,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650978166] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:40:35,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:40:35,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-11-23 07:40:35,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797517149] [2023-11-23 07:40:35,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:40:35,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-23 07:40:35,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:40:35,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-23 07:40:35,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=252, Unknown=4, NotChecked=0, Total=306 [2023-11-23 07:40:35,383 INFO L87 Difference]: Start difference. First operand 569 states and 878 transitions. Second operand has 18 states, 16 states have (on average 7.625) internal successors, (122), 17 states have internal predecessors, (122), 10 states have call successors, (38), 4 states have call predecessors, (38), 6 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) [2023-11-23 07:40:43,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:41:09,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:41:09,900 INFO L93 Difference]: Finished difference Result 1833 states and 2888 transitions. [2023-11-23 07:41:09,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-23 07:41:09,900 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 7.625) internal successors, (122), 17 states have internal predecessors, (122), 10 states have call successors, (38), 4 states have call predecessors, (38), 6 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) Word has length 304 [2023-11-23 07:41:09,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:41:09,906 INFO L225 Difference]: With dead ends: 1833 [2023-11-23 07:41:09,906 INFO L226 Difference]: Without dead ends: 1293 [2023-11-23 07:41:09,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 288 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 28.1s TimeCoverageRelationStatistics Valid=226, Invalid=1156, Unknown=24, NotChecked=0, Total=1406 [2023-11-23 07:41:09,908 INFO L413 NwaCegarLoop]: 964 mSDtfsCounter, 701 mSDsluCounter, 7552 mSDsCounter, 0 mSdLazyCounter, 12468 mSolverCounterSat, 643 mSolverCounterUnsat, 34 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 8516 SdHoareTripleChecker+Invalid, 13145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 12468 IncrementalHoareTripleChecker+Invalid, 34 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:41:09,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [822 Valid, 8516 Invalid, 13145 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [643 Valid, 12468 Invalid, 34 Unknown, 0 Unchecked, 12.2s Time] [2023-11-23 07:41:09,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2023-11-23 07:41:09,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1244. [2023-11-23 07:41:09,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 722 states have (on average 1.2714681440443214) internal successors, (918), 732 states have internal predecessors, (918), 438 states have call successors, (438), 70 states have call predecessors, (438), 82 states have return successors, (620), 441 states have call predecessors, (620), 435 states have call successors, (620) [2023-11-23 07:41:09,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 1976 transitions. [2023-11-23 07:41:09,988 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 1976 transitions. Word has length 304 [2023-11-23 07:41:09,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:41:09,988 INFO L495 AbstractCegarLoop]: Abstraction has 1244 states and 1976 transitions. [2023-11-23 07:41:09,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 7.625) internal successors, (122), 17 states have internal predecessors, (122), 10 states have call successors, (38), 4 states have call predecessors, (38), 6 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) [2023-11-23 07:41:09,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 1976 transitions. [2023-11-23 07:41:09,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-11-23 07:41:09,993 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:41:09,993 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:41:10,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-23 07:41:10,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:41:10,200 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:41:10,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:41:10,201 INFO L85 PathProgramCache]: Analyzing trace with hash -948356156, now seen corresponding path program 1 times [2023-11-23 07:41:10,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:41:10,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622429373] [2023-11-23 07:41:10,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:10,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:41:10,262 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:41:10,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1114605344] [2023-11-23 07:41:10,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:10,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:41:10,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:41:10,263 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:41:10,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-23 07:41:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:41:11,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 4764 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 07:41:11,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:41:11,182 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2023-11-23 07:41:11,182 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:41:11,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:41:11,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622429373] [2023-11-23 07:41:11,182 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:41:11,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114605344] [2023-11-23 07:41:11,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114605344] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:41:11,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:41:11,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:41:11,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506568148] [2023-11-23 07:41:11,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:41:11,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:41:11,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:41:11,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:41:11,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:41:11,184 INFO L87 Difference]: Start difference. First operand 1244 states and 1976 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-23 07:41:11,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:41:11,421 INFO L93 Difference]: Finished difference Result 2461 states and 3945 transitions. [2023-11-23 07:41:11,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:41:11,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 304 [2023-11-23 07:41:11,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:41:11,427 INFO L225 Difference]: With dead ends: 2461 [2023-11-23 07:41:11,427 INFO L226 Difference]: Without dead ends: 1263 [2023-11-23 07:41:11,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:41:11,432 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 2 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:41:11,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2080 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:41:11,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2023-11-23 07:41:11,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1252. [2023-11-23 07:41:11,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 730 states have (on average 1.263013698630137) internal successors, (922), 740 states have internal predecessors, (922), 438 states have call successors, (438), 70 states have call predecessors, (438), 82 states have return successors, (620), 441 states have call predecessors, (620), 435 states have call successors, (620) [2023-11-23 07:41:11,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1980 transitions. [2023-11-23 07:41:11,555 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1980 transitions. Word has length 304 [2023-11-23 07:41:11,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:41:11,556 INFO L495 AbstractCegarLoop]: Abstraction has 1252 states and 1980 transitions. [2023-11-23 07:41:11,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-23 07:41:11,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1980 transitions. [2023-11-23 07:41:11,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-11-23 07:41:11,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:41:11,558 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:41:11,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-23 07:41:11,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:41:11,768 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:41:11,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:41:11,768 INFO L85 PathProgramCache]: Analyzing trace with hash 2146255940, now seen corresponding path program 1 times [2023-11-23 07:41:11,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:41:11,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679322526] [2023-11-23 07:41:11,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:11,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:41:11,831 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:41:11,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [217026268] [2023-11-23 07:41:11,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:11,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:41:11,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:41:11,832 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:41:11,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-23 07:41:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:41:13,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 4762 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 07:41:13,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:41:13,087 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2023-11-23 07:41:13,087 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:41:13,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:41:13,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679322526] [2023-11-23 07:41:13,088 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:41:13,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217026268] [2023-11-23 07:41:13,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217026268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:41:13,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:41:13,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:41:13,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345576575] [2023-11-23 07:41:13,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:41:13,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:41:13,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:41:13,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:41:13,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:41:13,090 INFO L87 Difference]: Start difference. First operand 1252 states and 1980 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-23 07:41:13,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:41:13,412 INFO L93 Difference]: Finished difference Result 2522 states and 4018 transitions. [2023-11-23 07:41:13,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:41:13,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 304 [2023-11-23 07:41:13,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:41:13,420 INFO L225 Difference]: With dead ends: 2522 [2023-11-23 07:41:13,420 INFO L226 Difference]: Without dead ends: 1316 [2023-11-23 07:41:13,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:41:13,429 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 6 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2800 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:41:13,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2800 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:41:13,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2023-11-23 07:41:13,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1234. [2023-11-23 07:41:13,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 712 states have (on average 1.2570224719101124) internal successors, (895), 722 states have internal predecessors, (895), 438 states have call successors, (438), 70 states have call predecessors, (438), 82 states have return successors, (620), 441 states have call predecessors, (620), 435 states have call successors, (620) [2023-11-23 07:41:13,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 1953 transitions. [2023-11-23 07:41:13,506 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 1953 transitions. Word has length 304 [2023-11-23 07:41:13,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:41:13,506 INFO L495 AbstractCegarLoop]: Abstraction has 1234 states and 1953 transitions. [2023-11-23 07:41:13,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-23 07:41:13,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 1953 transitions. [2023-11-23 07:41:13,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2023-11-23 07:41:13,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:41:13,510 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:41:13,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-23 07:41:13,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-23 07:41:13,724 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:41:13,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:41:13,725 INFO L85 PathProgramCache]: Analyzing trace with hash 852238482, now seen corresponding path program 1 times [2023-11-23 07:41:13,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:41:13,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329131384] [2023-11-23 07:41:13,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:13,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:41:13,789 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:41:13,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [16137703] [2023-11-23 07:41:13,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:13,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:41:13,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:41:13,790 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:41:13,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-23 07:41:16,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:41:16,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 4784 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-23 07:41:16,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:41:16,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:41:16,869 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-23 07:41:16,870 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:41:16,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:41:16,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329131384] [2023-11-23 07:41:16,870 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:41:16,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16137703] [2023-11-23 07:41:16,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16137703] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:41:16,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:41:16,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 07:41:16,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63502117] [2023-11-23 07:41:16,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:41:16,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 07:41:16,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:41:16,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 07:41:16,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:41:16,871 INFO L87 Difference]: Start difference. First operand 1234 states and 1953 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 12 states have internal predecessors, (114), 7 states have call successors, (38), 3 states have call predecessors, (38), 4 states have return successors, (35), 7 states have call predecessors, (35), 7 states have call successors, (35) [2023-11-23 07:41:21,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:41:21,908 INFO L93 Difference]: Finished difference Result 2480 states and 3951 transitions. [2023-11-23 07:41:21,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 07:41:21,909 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 12 states have internal predecessors, (114), 7 states have call successors, (38), 3 states have call predecessors, (38), 4 states have return successors, (35), 7 states have call predecessors, (35), 7 states have call successors, (35) Word has length 309 [2023-11-23 07:41:21,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:41:21,916 INFO L225 Difference]: With dead ends: 2480 [2023-11-23 07:41:21,916 INFO L226 Difference]: Without dead ends: 1292 [2023-11-23 07:41:21,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-11-23 07:41:21,921 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 399 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 5461 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 2918 SdHoareTripleChecker+Invalid, 5710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 5461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:41:21,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 2918 Invalid, 5710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 5461 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-23 07:41:21,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2023-11-23 07:41:21,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1234. [2023-11-23 07:41:21,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 712 states have (on average 1.2514044943820224) internal successors, (891), 722 states have internal predecessors, (891), 438 states have call successors, (438), 70 states have call predecessors, (438), 82 states have return successors, (620), 441 states have call predecessors, (620), 435 states have call successors, (620) [2023-11-23 07:41:22,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 1949 transitions. [2023-11-23 07:41:22,001 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 1949 transitions. Word has length 309 [2023-11-23 07:41:22,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:41:22,001 INFO L495 AbstractCegarLoop]: Abstraction has 1234 states and 1949 transitions. [2023-11-23 07:41:22,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 12 states have internal predecessors, (114), 7 states have call successors, (38), 3 states have call predecessors, (38), 4 states have return successors, (35), 7 states have call predecessors, (35), 7 states have call successors, (35) [2023-11-23 07:41:22,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 1949 transitions. [2023-11-23 07:41:22,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2023-11-23 07:41:22,004 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:41:22,004 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:41:22,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-23 07:41:22,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-23 07:41:22,232 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:41:22,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:41:22,233 INFO L85 PathProgramCache]: Analyzing trace with hash -910587244, now seen corresponding path program 1 times [2023-11-23 07:41:22,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:41:22,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122420491] [2023-11-23 07:41:22,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:22,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:41:22,332 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:41:22,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1183719692] [2023-11-23 07:41:22,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:22,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:41:22,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:41:22,333 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:41:22,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-23 07:41:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:41:24,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 4779 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 07:41:24,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:41:24,317 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2023-11-23 07:41:24,317 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:41:24,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:41:24,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122420491] [2023-11-23 07:41:24,318 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:41:24,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183719692] [2023-11-23 07:41:24,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183719692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:41:24,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:41:24,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:41:24,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165094300] [2023-11-23 07:41:24,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:41:24,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:41:24,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:41:24,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:41:24,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:41:24,327 INFO L87 Difference]: Start difference. First operand 1234 states and 1949 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-11-23 07:41:24,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:41:24,639 INFO L93 Difference]: Finished difference Result 2436 states and 3924 transitions. [2023-11-23 07:41:24,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 07:41:24,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 309 [2023-11-23 07:41:24,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:41:24,645 INFO L225 Difference]: With dead ends: 2436 [2023-11-23 07:41:24,645 INFO L226 Difference]: Without dead ends: 1242 [2023-11-23 07:41:24,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:41:24,649 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 6 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2062 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:41:24,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2062 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:41:24,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2023-11-23 07:41:24,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1236. [2023-11-23 07:41:24,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 714 states have (on average 1.2507002801120448) internal successors, (893), 724 states have internal predecessors, (893), 438 states have call successors, (438), 70 states have call predecessors, (438), 82 states have return successors, (620), 441 states have call predecessors, (620), 435 states have call successors, (620) [2023-11-23 07:41:24,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 1951 transitions. [2023-11-23 07:41:24,719 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 1951 transitions. Word has length 309 [2023-11-23 07:41:24,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:41:24,719 INFO L495 AbstractCegarLoop]: Abstraction has 1236 states and 1951 transitions. [2023-11-23 07:41:24,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-11-23 07:41:24,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 1951 transitions. [2023-11-23 07:41:24,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2023-11-23 07:41:24,722 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:41:24,722 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:41:24,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-23 07:41:24,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-23 07:41:24,936 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:41:24,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:41:24,937 INFO L85 PathProgramCache]: Analyzing trace with hash 738965131, now seen corresponding path program 1 times [2023-11-23 07:41:24,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:41:24,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141100191] [2023-11-23 07:41:24,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:24,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:41:24,996 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:41:24,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1657463549] [2023-11-23 07:41:24,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:24,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:41:24,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:41:24,997 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:41:24,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-23 07:41:26,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:41:26,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 4782 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-23 07:41:26,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:41:26,162 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2023-11-23 07:41:26,162 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:41:26,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:41:26,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141100191] [2023-11-23 07:41:26,162 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:41:26,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657463549] [2023-11-23 07:41:26,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657463549] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:41:26,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:41:26,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 07:41:26,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279899709] [2023-11-23 07:41:26,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:41:26,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:41:26,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:41:26,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:41:26,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:41:26,164 INFO L87 Difference]: Start difference. First operand 1236 states and 1951 transitions. Second operand has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 3 states have call successors, (37), 2 states have call predecessors, (37), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2023-11-23 07:41:26,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:41:26,925 INFO L93 Difference]: Finished difference Result 2454 states and 3905 transitions. [2023-11-23 07:41:26,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:41:26,926 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 3 states have call successors, (37), 2 states have call predecessors, (37), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 309 [2023-11-23 07:41:26,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:41:26,947 INFO L225 Difference]: With dead ends: 2454 [2023-11-23 07:41:26,947 INFO L226 Difference]: Without dead ends: 1264 [2023-11-23 07:41:26,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:41:26,951 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 5 mSDsluCounter, 5212 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5877 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:41:26,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5877 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 07:41:26,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-11-23 07:41:27,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1250. [2023-11-23 07:41:27,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 724 states have (on average 1.2472375690607735) internal successors, (903), 736 states have internal predecessors, (903), 438 states have call successors, (438), 70 states have call predecessors, (438), 86 states have return successors, (655), 443 states have call predecessors, (655), 435 states have call successors, (655) [2023-11-23 07:41:27,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1996 transitions. [2023-11-23 07:41:27,031 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1996 transitions. Word has length 309 [2023-11-23 07:41:27,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:41:27,031 INFO L495 AbstractCegarLoop]: Abstraction has 1250 states and 1996 transitions. [2023-11-23 07:41:27,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 3 states have call successors, (37), 2 states have call predecessors, (37), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2023-11-23 07:41:27,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1996 transitions. [2023-11-23 07:41:27,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2023-11-23 07:41:27,034 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:41:27,034 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 07:41:27,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-23 07:41:27,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-23 07:41:27,247 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:41:27,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:41:27,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1510915904, now seen corresponding path program 1 times [2023-11-23 07:41:27,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:41:27,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631751036] [2023-11-23 07:41:27,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:27,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:41:27,315 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:41:27,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1510231206] [2023-11-23 07:41:27,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:41:27,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:41:27,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:41:27,320 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:41:27,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-23 07:42:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 07:42:59,686 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. Killed by 15