./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme --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 7d9514ee1b6f3a0027f117bcf81d6b26d525fe99251459ecef3c46cad248dd1f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:44:47,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:44:47,238 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-26 10:44:47,251 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:44:47,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:44:47,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:44:47,297 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:44:47,298 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:44:47,299 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:44:47,305 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:44:47,306 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:44:47,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:44:47,308 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:44:47,310 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:44:47,310 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:44:47,311 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:44:47,311 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:44:47,311 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:44:47,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:44:47,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:44:47,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:44:47,313 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:44:47,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:44:47,314 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:44:47,315 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:44:47,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:44:47,316 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:44:47,316 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:44:47,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:44:47,317 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:44:47,318 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:44:47,318 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:44:47,319 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:44:47,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:44:47,319 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:44:47,319 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:44:47,320 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:44:47,320 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:44:47,320 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:44:47,320 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d9514ee1b6f3a0027f117bcf81d6b26d525fe99251459ecef3c46cad248dd1f [2023-11-26 10:44:47,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:44:47,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:44:47,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:44:47,734 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:44:47,734 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:44:47,735 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i [2023-11-26 10:44:50,786 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:44:51,434 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:44:51,435 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i [2023-11-26 10:44:51,495 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/data/2ff476a08/f591ca4311e44f779bc3085d5b7dea4e/FLAGa627f9adb [2023-11-26 10:44:51,514 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/data/2ff476a08/f591ca4311e44f779bc3085d5b7dea4e [2023-11-26 10:44:51,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:44:51,523 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:44:51,525 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:44:51,525 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:44:51,531 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:44:51,534 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:44:51" (1/1) ... [2023-11-26 10:44:51,535 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c00a0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:51, skipping insertion in model container [2023-11-26 10:44:51,536 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:44:51" (1/1) ... [2023-11-26 10:44:51,678 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:44:52,111 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4510,4523] [2023-11-26 10:44:52,122 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4570,4583] [2023-11-26 10:44:53,325 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:53,327 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:53,329 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:53,331 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:53,333 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:53,348 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:53,349 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:53,352 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:53,353 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:53,355 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:53,356 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:53,357 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:53,358 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:53,918 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-26 10:44:53,921 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-26 10:44:53,923 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-26 10:44:53,926 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-26 10:44:53,929 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-26 10:44:53,930 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-26 10:44:53,932 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-26 10:44:53,933 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-26 10:44:53,934 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-26 10:44:53,935 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-26 10:44:54,187 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,202 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,305 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,306 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,442 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:44:54,520 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:44:54,546 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4510,4523] [2023-11-26 10:44:54,546 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4570,4583] [2023-11-26 10:44:54,669 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,670 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,671 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,673 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,674 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,680 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,680 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,682 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,682 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,683 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,684 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,685 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,685 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,726 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-26 10:44:54,727 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-26 10:44:54,727 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-26 10:44:54,729 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-26 10:44:54,730 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-26 10:44:54,731 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-26 10:44:54,731 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-26 10:44:54,732 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-26 10:44:54,732 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-26 10:44:54,733 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-26 10:44:54,780 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,785 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8553] [2023-11-26 10:44:54,899 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,900 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 10:44:54,918 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [9039-9050] [2023-11-26 10:44:54,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:44:55,313 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,313 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,314 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,315 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,315 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,315 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,317 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,317 WARN L675 CHandler]: The function s_global_handler is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,318 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,318 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,318 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,318 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,318 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,318 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,318 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,319 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,319 WARN L675 CHandler]: The function tl_thread_handler is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,319 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,319 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,319 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:44:55,327 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:44:55,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:55 WrapperNode [2023-11-26 10:44:55,329 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:44:55,330 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:44:55,331 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:44:55,331 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:44:55,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:55" (1/1) ... [2023-11-26 10:44:55,477 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:55" (1/1) ... [2023-11-26 10:44:55,578 INFO L138 Inliner]: procedures = 694, calls = 3058, calls flagged for inlining = 70, calls inlined = 10, statements flattened = 965 [2023-11-26 10:44:55,579 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:44:55,580 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:44:55,580 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:44:55,580 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:44:55,593 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:55" (1/1) ... [2023-11-26 10:44:55,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:55" (1/1) ... [2023-11-26 10:44:55,602 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:55" (1/1) ... [2023-11-26 10:44:55,732 INFO L175 MemorySlicer]: Split 577 memory accesses to 8 slices as follows [2, 6, 256, 236, 21, 2, 51, 3]. 44 percent of accesses are in the largest equivalence class. The 510 initializations are split as follows [2, 0, 256, 236, 5, 0, 8, 3]. The 11 writes are split as follows [0, 2, 0, 0, 4, 2, 3, 0]. [2023-11-26 10:44:55,740 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:55" (1/1) ... [2023-11-26 10:44:55,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:55" (1/1) ... [2023-11-26 10:44:55,826 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:55" (1/1) ... [2023-11-26 10:44:55,846 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:55" (1/1) ... [2023-11-26 10:44:55,873 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:55" (1/1) ... [2023-11-26 10:44:55,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:55" (1/1) ... [2023-11-26 10:44:55,912 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:44:55,913 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:44:55,914 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:44:55,915 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:44:55,916 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:55" (1/1) ... [2023-11-26 10:44:55,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:44:55,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:44:55,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:44:55,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:44:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2023-11-26 10:44:55,998 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2023-11-26 10:44:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-26 10:44:55,998 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-26 10:44:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2023-11-26 10:44:55,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2023-11-26 10:44:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:44:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-26 10:44:55,999 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-26 10:44:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2023-11-26 10:44:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2023-11-26 10:44:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2023-11-26 10:44:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2023-11-26 10:44:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2023-11-26 10:44:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2023-11-26 10:44:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2023-11-26 10:44:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2023-11-26 10:44:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-26 10:44:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-26 10:44:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-26 10:44:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-26 10:44:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-26 10:44:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-26 10:44:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-26 10:44:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-26 10:44:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-26 10:44:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-26 10:44:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-26 10:44:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-26 10:44:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-26 10:44:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-26 10:44:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-26 10:44:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-26 10:44:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 10:44:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 10:44:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 10:44:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 10:44:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 10:44:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 10:44:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 10:44:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-26 10:44:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2023-11-26 10:44:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2023-11-26 10:44:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2023-11-26 10:44:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2023-11-26 10:44:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2023-11-26 10:44:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2023-11-26 10:44:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2023-11-26 10:44:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2023-11-26 10:44:56,007 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2023-11-26 10:44:56,008 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2023-11-26 10:44:56,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2023-11-26 10:44:56,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2023-11-26 10:44:56,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2023-11-26 10:44:56,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2023-11-26 10:44:56,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2023-11-26 10:44:56,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2023-11-26 10:44:56,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 10:44:56,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 10:44:56,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 10:44:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:44:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 10:44:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 10:44:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 10:44:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 10:44:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 10:44:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-26 10:44:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-26 10:44:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-26 10:44:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:44:56,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:44:56,013 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-26 10:44:56,014 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-26 10:44:56,016 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-26 10:44:56,017 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-26 10:44:56,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-26 10:44:56,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-26 10:44:56,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-26 10:44:56,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-26 10:44:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-26 10:44:56,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-26 10:44:56,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-26 10:44:56,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-26 10:44:56,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-26 10:44:56,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-26 10:44:56,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-26 10:44:56,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-26 10:44:56,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-26 10:44:56,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-26 10:44:56,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-26 10:44:56,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-26 10:44:56,029 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2023-11-26 10:44:56,029 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2023-11-26 10:44:56,029 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:44:56,030 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:44:56,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:44:56,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 10:44:56,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 10:44:56,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 10:44:56,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 10:44:56,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-26 10:44:56,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-26 10:44:56,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-26 10:44:56,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-26 10:44:56,031 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2023-11-26 10:44:56,031 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2023-11-26 10:44:56,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-26 10:44:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-26 10:44:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-26 10:44:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-26 10:44:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-26 10:44:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-26 10:44:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-26 10:44:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-26 10:44:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-26 10:44:56,033 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-26 10:44:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-26 10:44:56,033 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-26 10:44:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 10:44:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 10:44:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 10:44:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 10:44:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 10:44:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 10:44:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 10:44:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-26 10:44:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2023-11-26 10:44:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2023-11-26 10:44:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2023-11-26 10:44:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2023-11-26 10:44:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2023-11-26 10:44:56,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2023-11-26 10:44:56,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2023-11-26 10:44:56,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2023-11-26 10:44:56,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:44:56,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 10:44:56,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 10:44:56,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 10:44:56,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 10:44:56,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 10:44:56,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 10:44:56,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-26 10:44:56,520 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:44:56,523 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:44:58,716 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:44:58,871 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:44:58,871 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 10:44:58,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:44:58 BoogieIcfgContainer [2023-11-26 10:44:58,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:44:58,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:44:58,875 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:44:58,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:44:58,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:44:51" (1/3) ... [2023-11-26 10:44:58,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cc0295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:44:58, skipping insertion in model container [2023-11-26 10:44:58,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:55" (2/3) ... [2023-11-26 10:44:58,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cc0295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:44:58, skipping insertion in model container [2023-11-26 10:44:58,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:44:58" (3/3) ... [2023-11-26 10:44:58,881 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_from_whole_string_harness.i [2023-11-26 10:44:58,901 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:44:58,902 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:44:58,972 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:44:58,979 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;@4e0e3d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:44:58,980 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:44:58,986 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 102 states have (on average 1.303921568627451) internal successors, (133), 103 states have internal predecessors, (133), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-26 10:44:59,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 10:44:59,004 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:59,006 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-26 10:44:59,006 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:44:59,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:59,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1831246763, now seen corresponding path program 1 times [2023-11-26 10:44:59,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:59,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453700083] [2023-11-26 10:44:59,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:59,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:59,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:44:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:59,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 10:44:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:59,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 10:44:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:59,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:44:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:59,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:44:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:59,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 10:44:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:59,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 10:44:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:59,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-26 10:44:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:59,939 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-26 10:44:59,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:59,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453700083] [2023-11-26 10:44:59,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453700083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:59,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:59,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:44:59,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471085102] [2023-11-26 10:44:59,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:59,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:59,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:59,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:59,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:59,996 INFO L87 Difference]: Start difference. First operand has 165 states, 102 states have (on average 1.303921568627451) internal successors, (133), 103 states have internal predecessors, (133), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 10:45:00,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:00,570 INFO L93 Difference]: Finished difference Result 322 states and 476 transitions. [2023-11-26 10:45:00,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:00,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2023-11-26 10:45:00,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:00,583 INFO L225 Difference]: With dead ends: 322 [2023-11-26 10:45:00,584 INFO L226 Difference]: Without dead ends: 163 [2023-11-26 10:45:00,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:00,603 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 78 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:00,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 191 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 10:45:00,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-11-26 10:45:00,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2023-11-26 10:45:00,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 101 states have (on average 1.2871287128712872) internal successors, (130), 102 states have internal predecessors, (130), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-26 10:45:00,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 225 transitions. [2023-11-26 10:45:00,683 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 225 transitions. Word has length 56 [2023-11-26 10:45:00,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:00,689 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 225 transitions. [2023-11-26 10:45:00,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 10:45:00,690 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 225 transitions. [2023-11-26 10:45:00,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 10:45:00,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:00,697 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-26 10:45:00,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:45:00,698 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:00,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:00,698 INFO L85 PathProgramCache]: Analyzing trace with hash 314642091, now seen corresponding path program 1 times [2023-11-26 10:45:00,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:00,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309344681] [2023-11-26 10:45:00,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:00,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:01,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:01,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 10:45:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:01,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 10:45:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:01,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:01,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:45:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:01,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 10:45:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:01,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 10:45:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:01,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-26 10:45:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:01,647 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-26 10:45:01,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:01,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309344681] [2023-11-26 10:45:01,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309344681] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:01,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:01,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:45:01,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702641324] [2023-11-26 10:45:01,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:01,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:45:01,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:01,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:45:01,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:45:01,651 INFO L87 Difference]: Start difference. First operand 163 states and 225 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-26 10:45:02,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:02,671 INFO L93 Difference]: Finished difference Result 293 states and 411 transitions. [2023-11-26 10:45:02,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:45:02,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 56 [2023-11-26 10:45:02,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:02,677 INFO L225 Difference]: With dead ends: 293 [2023-11-26 10:45:02,677 INFO L226 Difference]: Without dead ends: 165 [2023-11-26 10:45:02,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:45:02,680 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 146 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:02,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 406 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 10:45:02,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-11-26 10:45:02,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2023-11-26 10:45:02,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 102 states have (on average 1.2843137254901962) internal successors, (131), 104 states have internal predecessors, (131), 48 states have call successors, (48), 13 states have call predecessors, (48), 14 states have return successors, (51), 47 states have call predecessors, (51), 47 states have call successors, (51) [2023-11-26 10:45:02,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 230 transitions. [2023-11-26 10:45:02,724 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 230 transitions. Word has length 56 [2023-11-26 10:45:02,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:02,725 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 230 transitions. [2023-11-26 10:45:02,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-26 10:45:02,725 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 230 transitions. [2023-11-26 10:45:02,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-26 10:45:02,735 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:02,735 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-26 10:45:02,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:45:02,736 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:02,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:02,737 INFO L85 PathProgramCache]: Analyzing trace with hash 790632512, now seen corresponding path program 1 times [2023-11-26 10:45:02,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:02,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80062849] [2023-11-26 10:45:02,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:02,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:04,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:04,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 10:45:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:04,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 10:45:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:04,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:04,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:45:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:04,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 10:45:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:04,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-26 10:45:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:04,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 10:45:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:04,819 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-26 10:45:04,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:04,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80062849] [2023-11-26 10:45:04,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80062849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:04,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:04,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-26 10:45:04,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95403141] [2023-11-26 10:45:04,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:04,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 10:45:04,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:04,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 10:45:04,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-26 10:45:04,827 INFO L87 Difference]: Start difference. First operand 165 states and 230 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 8 states have internal predecessors, (35), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-26 10:45:06,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:06,537 INFO L93 Difference]: Finished difference Result 175 states and 239 transitions. [2023-11-26 10:45:06,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 10:45:06,538 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 8 states have internal predecessors, (35), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 62 [2023-11-26 10:45:06,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:06,543 INFO L225 Difference]: With dead ends: 175 [2023-11-26 10:45:06,545 INFO L226 Difference]: Without dead ends: 171 [2023-11-26 10:45:06,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2023-11-26 10:45:06,548 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 218 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:06,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 642 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-26 10:45:06,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-11-26 10:45:06,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2023-11-26 10:45:06,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 107 states have (on average 1.2710280373831775) internal successors, (136), 108 states have internal predecessors, (136), 48 states have call successors, (48), 15 states have call predecessors, (48), 15 states have return successors, (51), 47 states have call predecessors, (51), 47 states have call successors, (51) [2023-11-26 10:45:06,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 235 transitions. [2023-11-26 10:45:06,585 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 235 transitions. Word has length 62 [2023-11-26 10:45:06,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:06,587 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 235 transitions. [2023-11-26 10:45:06,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 8 states have internal predecessors, (35), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-26 10:45:06,588 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 235 transitions. [2023-11-26 10:45:06,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-26 10:45:06,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:06,591 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-26 10:45:06,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:45:06,591 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:06,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:06,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1001667795, now seen corresponding path program 1 times [2023-11-26 10:45:06,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:06,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318418764] [2023-11-26 10:45:06,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:06,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:09,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:09,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:09,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 10:45:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:09,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 10:45:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:09,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:09,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:45:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:09,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 10:45:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:09,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-26 10:45:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:09,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 10:45:09,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:09,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 10:45:09,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:09,436 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-26 10:45:09,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:09,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318418764] [2023-11-26 10:45:09,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318418764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:09,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:09,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 10:45:09,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822076762] [2023-11-26 10:45:09,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:09,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 10:45:09,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:09,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 10:45:09,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-26 10:45:09,439 INFO L87 Difference]: Start difference. First operand 171 states and 235 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-26 10:45:11,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:11,263 INFO L93 Difference]: Finished difference Result 218 states and 304 transitions. [2023-11-26 10:45:11,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 10:45:11,264 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 68 [2023-11-26 10:45:11,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:11,267 INFO L225 Difference]: With dead ends: 218 [2023-11-26 10:45:11,267 INFO L226 Difference]: Without dead ends: 216 [2023-11-26 10:45:11,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:45:11,268 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 129 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:11,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 578 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-26 10:45:11,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-11-26 10:45:11,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 181. [2023-11-26 10:45:11,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 114 states have (on average 1.2719298245614035) internal successors, (145), 116 states have internal predecessors, (145), 50 states have call successors, (50), 16 states have call predecessors, (50), 16 states have return successors, (53), 48 states have call predecessors, (53), 49 states have call successors, (53) [2023-11-26 10:45:11,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 248 transitions. [2023-11-26 10:45:11,297 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 248 transitions. Word has length 68 [2023-11-26 10:45:11,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:11,298 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 248 transitions. [2023-11-26 10:45:11,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-26 10:45:11,299 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 248 transitions. [2023-11-26 10:45:11,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-26 10:45:11,300 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:11,300 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-26 10:45:11,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:45:11,301 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:11,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:11,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1405315746, now seen corresponding path program 1 times [2023-11-26 10:45:11,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:11,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077893565] [2023-11-26 10:45:11,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:11,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:11,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:11,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 10:45:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:11,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 10:45:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:11,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:11,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:45:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:11,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 10:45:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:11,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-26 10:45:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:11,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 10:45:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:11,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-26 10:45:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:11,958 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-26 10:45:11,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:11,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077893565] [2023-11-26 10:45:11,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077893565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:11,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:11,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:45:11,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704807063] [2023-11-26 10:45:11,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:11,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:45:11,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:11,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:45:11,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:45:11,961 INFO L87 Difference]: Start difference. First operand 181 states and 248 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-26 10:45:12,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:12,771 INFO L93 Difference]: Finished difference Result 293 states and 409 transitions. [2023-11-26 10:45:12,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:45:12,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 68 [2023-11-26 10:45:12,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:12,774 INFO L225 Difference]: With dead ends: 293 [2023-11-26 10:45:12,775 INFO L226 Difference]: Without dead ends: 234 [2023-11-26 10:45:12,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:45:12,776 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 100 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:12,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 376 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 10:45:12,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-11-26 10:45:12,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 215. [2023-11-26 10:45:12,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 136 states have (on average 1.2647058823529411) internal successors, (172), 138 states have internal predecessors, (172), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (66), 60 states have call predecessors, (66), 61 states have call successors, (66) [2023-11-26 10:45:12,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 300 transitions. [2023-11-26 10:45:12,804 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 300 transitions. Word has length 68 [2023-11-26 10:45:12,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:12,805 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 300 transitions. [2023-11-26 10:45:12,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-26 10:45:12,805 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 300 transitions. [2023-11-26 10:45:12,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-26 10:45:12,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:12,807 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2023-11-26 10:45:12,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:45:12,807 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:12,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:12,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1297625124, now seen corresponding path program 1 times [2023-11-26 10:45:12,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:12,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372601254] [2023-11-26 10:45:12,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:12,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:15,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:15,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 10:45:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:15,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 10:45:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:15,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:15,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:45:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:15,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 10:45:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:15,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-26 10:45:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:15,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 10:45:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:15,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 10:45:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:15,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 10:45:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:15,811 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-26 10:45:15,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:15,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372601254] [2023-11-26 10:45:15,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372601254] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:15,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:15,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-26 10:45:15,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182803540] [2023-11-26 10:45:15,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:15,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 10:45:15,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:15,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 10:45:15,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-26 10:45:15,814 INFO L87 Difference]: Start difference. First operand 215 states and 300 transitions. Second operand has 11 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-26 10:45:17,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:17,814 INFO L93 Difference]: Finished difference Result 423 states and 604 transitions. [2023-11-26 10:45:17,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 10:45:17,815 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 74 [2023-11-26 10:45:17,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:17,817 INFO L225 Difference]: With dead ends: 423 [2023-11-26 10:45:17,817 INFO L226 Difference]: Without dead ends: 252 [2023-11-26 10:45:17,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2023-11-26 10:45:17,819 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 171 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:17,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 698 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-26 10:45:17,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-11-26 10:45:17,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 251. [2023-11-26 10:45:17,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 157 states have (on average 1.2611464968152866) internal successors, (198), 160 states have internal predecessors, (198), 76 states have call successors, (76), 16 states have call predecessors, (76), 17 states have return successors, (86), 74 states have call predecessors, (86), 75 states have call successors, (86) [2023-11-26 10:45:17,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 360 transitions. [2023-11-26 10:45:17,855 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 360 transitions. Word has length 74 [2023-11-26 10:45:17,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:17,856 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 360 transitions. [2023-11-26 10:45:17,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-26 10:45:17,856 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 360 transitions. [2023-11-26 10:45:17,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-26 10:45:17,858 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:17,858 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2023-11-26 10:45:17,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:45:17,859 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:17,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:17,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1180299428, now seen corresponding path program 1 times [2023-11-26 10:45:17,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:17,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521198242] [2023-11-26 10:45:17,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:17,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:18,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:18,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:18,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 10:45:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:18,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 10:45:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:18,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:18,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:45:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:18,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 10:45:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:19,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 10:45:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:19,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-26 10:45:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:19,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-26 10:45:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:19,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-26 10:45:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:19,037 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-26 10:45:19,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:19,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521198242] [2023-11-26 10:45:19,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521198242] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:45:19,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172311002] [2023-11-26 10:45:19,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:19,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:45:19,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:19,042 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:45:19,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:45:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:19,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 2623 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 10:45:19,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 10:45:20,028 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:45:20,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172311002] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:20,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:45:20,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2023-11-26 10:45:20,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028394378] [2023-11-26 10:45:20,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:20,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:45:20,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:20,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:45:20,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-26 10:45:20,032 INFO L87 Difference]: Start difference. First operand 251 states and 360 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 10:45:20,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:20,783 INFO L93 Difference]: Finished difference Result 474 states and 705 transitions. [2023-11-26 10:45:20,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:45:20,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 78 [2023-11-26 10:45:20,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:20,787 INFO L225 Difference]: With dead ends: 474 [2023-11-26 10:45:20,787 INFO L226 Difference]: Without dead ends: 267 [2023-11-26 10:45:20,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-26 10:45:20,790 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 39 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:20,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 783 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 10:45:20,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-11-26 10:45:20,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 256. [2023-11-26 10:45:20,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 162 states have (on average 1.2654320987654322) internal successors, (205), 165 states have internal predecessors, (205), 76 states have call successors, (76), 16 states have call predecessors, (76), 17 states have return successors, (86), 74 states have call predecessors, (86), 75 states have call successors, (86) [2023-11-26 10:45:20,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 367 transitions. [2023-11-26 10:45:20,843 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 367 transitions. Word has length 78 [2023-11-26 10:45:20,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:20,844 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 367 transitions. [2023-11-26 10:45:20,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 10:45:20,844 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 367 transitions. [2023-11-26 10:45:20,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-26 10:45:20,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:20,846 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2023-11-26 10:45:20,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-26 10:45:21,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:45:21,057 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:21,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:21,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1195818146, now seen corresponding path program 1 times [2023-11-26 10:45:21,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:21,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573804591] [2023-11-26 10:45:21,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:21,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:22,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:22,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 10:45:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:22,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 10:45:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:22,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:22,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:45:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:22,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 10:45:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:22,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 10:45:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:22,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-26 10:45:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:22,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-26 10:45:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:22,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-26 10:45:22,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:22,283 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-26 10:45:22,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:22,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573804591] [2023-11-26 10:45:22,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573804591] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:45:22,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195606721] [2023-11-26 10:45:22,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:22,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:45:22,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:22,286 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:45:22,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 10:45:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:22,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 2618 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-26 10:45:22,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:23,043 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-26 10:45:23,044 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:45:23,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195606721] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:23,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:45:23,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 11 [2023-11-26 10:45:23,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020365913] [2023-11-26 10:45:23,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:23,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 10:45:23,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:23,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 10:45:23,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-26 10:45:23,048 INFO L87 Difference]: Start difference. First operand 256 states and 367 transitions. Second operand has 9 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-26 10:45:23,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:23,414 INFO L93 Difference]: Finished difference Result 472 states and 686 transitions. [2023-11-26 10:45:23,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 10:45:23,414 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 78 [2023-11-26 10:45:23,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:23,417 INFO L225 Difference]: With dead ends: 472 [2023-11-26 10:45:23,417 INFO L226 Difference]: Without dead ends: 260 [2023-11-26 10:45:23,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-26 10:45:23,420 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 13 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:23,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1563 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 10:45:23,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-11-26 10:45:23,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2023-11-26 10:45:23,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 165 states have (on average 1.2606060606060605) internal successors, (208), 169 states have internal predecessors, (208), 76 states have call successors, (76), 16 states have call predecessors, (76), 18 states have return successors, (93), 74 states have call predecessors, (93), 75 states have call successors, (93) [2023-11-26 10:45:23,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 377 transitions. [2023-11-26 10:45:23,462 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 377 transitions. Word has length 78 [2023-11-26 10:45:23,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:23,462 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 377 transitions. [2023-11-26 10:45:23,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-26 10:45:23,463 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 377 transitions. [2023-11-26 10:45:23,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-26 10:45:23,464 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:23,465 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2023-11-26 10:45:23,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:23,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394d5b8a-6593-446a-bdd6-43f14324e11c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:45:23,675 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:23,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:23,675 INFO L85 PathProgramCache]: Analyzing trace with hash -14930503, now seen corresponding path program 1 times [2023-11-26 10:45:23,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:23,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95512968] [2023-11-26 10:45:23,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:23,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:23,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:23,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 10:45:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:24,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 10:45:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:24,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:24,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:45:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:24,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-26 10:45:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:24,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-26 10:45:24,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:24,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 10:45:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:24,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 10:45:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:24,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 10:45:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:24,130 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-26 10:45:24,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:24,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95512968] [2023-11-26 10:45:24,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95512968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:24,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:24,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:45:24,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557191108] [2023-11-26 10:45:24,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:24,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:45:24,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:24,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:45:24,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:45:24,133 INFO L87 Difference]: Start difference. First operand 260 states and 377 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 10:45:24,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:24,948 INFO L93 Difference]: Finished difference Result 481 states and 711 transitions. [2023-11-26 10:45:24,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:45:24,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 80 [2023-11-26 10:45:24,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:24,951 INFO L225 Difference]: With dead ends: 481 [2023-11-26 10:45:24,951 INFO L226 Difference]: Without dead ends: 265 [2023-11-26 10:45:24,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:45:24,955 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 91 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:24,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 394 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 10:45:24,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-11-26 10:45:24,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 262. [2023-11-26 10:45:24,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 167 states have (on average 1.2574850299401197) internal successors, (210), 171 states have internal predecessors, (210), 76 states have call successors, (76), 16 states have call predecessors, (76), 18 states have return successors, (93), 74 states have call predecessors, (93), 75 states have call successors, (93) [2023-11-26 10:45:24,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 379 transitions. [2023-11-26 10:45:24,990 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 379 transitions. Word has length 80 [2023-11-26 10:45:24,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:24,991 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 379 transitions. [2023-11-26 10:45:24,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 10:45:24,992 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 379 transitions. [2023-11-26 10:45:24,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-26 10:45:24,994 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:24,995 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2023-11-26 10:45:24,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:45:24,995 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:24,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:24,996 INFO L85 PathProgramCache]: Analyzing trace with hash 2054330357, now seen corresponding path program 1 times [2023-11-26 10:45:24,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:24,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666906983] [2023-11-26 10:45:24,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:24,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:25,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:25,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 10:45:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:25,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 10:45:25,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:25,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:25,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:45:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:25,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-26 10:45:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:25,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-26 10:45:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:25,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 10:45:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:25,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 10:45:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:25,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 10:45:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:25,404 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-26 10:45:25,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:25,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666906983] [2023-11-26 10:45:25,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666906983] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:25,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:25,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:45:25,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20764914] [2023-11-26 10:45:25,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:25,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:45:25,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:25,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:45:25,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:45:25,407 INFO L87 Difference]: Start difference. First operand 262 states and 379 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 10:45:26,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:26,208 INFO L93 Difference]: Finished difference Result 497 states and 740 transitions. [2023-11-26 10:45:26,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:45:26,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 80 [2023-11-26 10:45:26,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:26,210 INFO L225 Difference]: With dead ends: 497 [2023-11-26 10:45:26,211 INFO L226 Difference]: Without dead ends: 279 [2023-11-26 10:45:26,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:45:26,213 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 106 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:26,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 394 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 10:45:26,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2023-11-26 10:45:26,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 262. [2023-11-26 10:45:26,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 167 states have (on average 1.251497005988024) internal successors, (209), 171 states have internal predecessors, (209), 76 states have call successors, (76), 16 states have call predecessors, (76), 18 states have return successors, (93), 74 states have call predecessors, (93), 75 states have call successors, (93) [2023-11-26 10:45:26,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 378 transitions. [2023-11-26 10:45:26,244 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 378 transitions. Word has length 80 [2023-11-26 10:45:26,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:26,245 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 378 transitions. [2023-11-26 10:45:26,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 10:45:26,245 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 378 transitions. [2023-11-26 10:45:26,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-26 10:45:26,247 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:26,247 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2023-11-26 10:45:26,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 10:45:26,247 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:26,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:26,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1364617933, now seen corresponding path program 1 times [2023-11-26 10:45:26,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:26,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047942607] [2023-11-26 10:45:26,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:26,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 10:45:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 10:45:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:45:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:45:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-26 10:45:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-26 10:45:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 10:45:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 10:45:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 10:45:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,331 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-26 10:45:30,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:30,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047942607] [2023-11-26 10:45:30,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047942607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:30,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:30,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 10:45:30,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507409391] [2023-11-26 10:45:30,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:30,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 10:45:30,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:30,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 10:45:30,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-26 10:45:30,334 INFO L87 Difference]: Start difference. First operand 262 states and 378 transitions. Second operand has 9 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10)