./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya --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 e401a4e4197b43467958a92870f8195ba22195c146137fa78352c627ea2eeb40 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:32:51,794 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:32:51,859 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 04:32:51,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:32:51,865 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:32:51,889 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:32:51,890 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:32:51,890 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:32:51,891 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:32:51,891 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:32:51,892 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:32:51,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:32:51,893 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:32:51,894 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:32:51,894 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:32:51,895 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:32:51,895 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:32:51,896 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:32:51,896 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:32:51,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:32:51,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:32:51,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:32:51,899 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:32:51,899 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:32:51,900 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:32:51,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:32:51,900 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:32:51,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:32:51,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:32:51,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:32:51,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:32:51,902 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:32:51,903 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:32:51,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:32:51,903 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:32:51,903 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:32:51,903 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:32:51,904 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:32:51,904 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:32:51,904 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_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e401a4e4197b43467958a92870f8195ba22195c146137fa78352c627ea2eeb40 [2023-11-29 04:32:52,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:32:52,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:32:52,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:32:52,151 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:32:52,152 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:32:52,153 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i [2023-11-29 04:32:54,948 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:32:55,434 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:32:55,435 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i [2023-11-29 04:32:55,475 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/data/16f20a64c/49f4fdada5724589a3dc199ce2663d33/FLAG433f6e722 [2023-11-29 04:32:55,492 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/data/16f20a64c/49f4fdada5724589a3dc199ce2663d33 [2023-11-29 04:32:55,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:32:55,497 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:32:55,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:32:55,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:32:55,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:32:55,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:32:55" (1/1) ... [2023-11-29 04:32:55,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6397aa48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:55, skipping insertion in model container [2023-11-29 04:32:55,507 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:32:55" (1/1) ... [2023-11-29 04:32:55,614 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:32:55,886 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_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i[4502,4515] [2023-11-29 04:32:55,895 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_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i[4562,4575] [2023-11-29 04:32:56,836 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:56,837 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:56,838 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:56,839 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:56,841 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:56,863 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:56,864 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:56,867 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:56,868 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:57,342 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-29 04:32:57,343 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-29 04:32:57,345 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-29 04:32:57,346 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-29 04:32:57,349 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-29 04:32:57,350 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-29 04:32:57,351 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-29 04:32:57,352 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-29 04:32:57,353 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-29 04:32:57,354 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-29 04:32:57,685 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:57,686 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:57,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:32:57,823 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:32:57,843 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_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i[4502,4515] [2023-11-29 04:32:57,843 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_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i[4562,4575] [2023-11-29 04:32:57,889 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:57,890 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:57,890 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:57,891 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:57,891 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:57,899 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:57,899 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:57,901 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:57,901 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:57,942 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-29 04:32:57,943 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-29 04:32:57,944 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-29 04:32:57,945 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-29 04:32:57,947 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-29 04:32:57,947 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-29 04:32:57,948 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-29 04:32:57,949 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-29 04:32:57,950 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-29 04:32:57,950 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-29 04:32:58,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8073] [2023-11-29 04:32:58,063 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:58,063 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 04:32:58,077 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8559-8570] [2023-11-29 04:32:58,094 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:32:58,351 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:32:58,351 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:32:58,351 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:32:58,352 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:32:58,352 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:32:58,352 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:32:58,352 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:32:58,352 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:32:58,352 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:32:58,353 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:32:58,353 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:32:58,353 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:32:58,353 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:32:58,353 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:32:58,353 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:32:58,354 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:32:58,354 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:32:58,354 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:32:58,362 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:32:58,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:58 WrapperNode [2023-11-29 04:32:58,362 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:32:58,364 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:32:58,364 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:32:58,364 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:32:58,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:58" (1/1) ... [2023-11-29 04:32:58,480 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:58" (1/1) ... [2023-11-29 04:32:58,572 INFO L138 Inliner]: procedures = 690, calls = 2507, calls flagged for inlining = 56, calls inlined = 8, statements flattened = 815 [2023-11-29 04:32:58,572 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:32:58,573 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:32:58,573 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:32:58,574 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:32:58,586 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:58" (1/1) ... [2023-11-29 04:32:58,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:58" (1/1) ... [2023-11-29 04:32:58,597 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:58" (1/1) ... [2023-11-29 04:32:58,672 INFO L175 MemorySlicer]: Split 532 memory accesses to 6 slices as follows [2, 7, 256, 236, 28, 3]. 48 percent of accesses are in the largest equivalence class. The 502 initializations are split as follows [2, 5, 256, 236, 0, 3]. The 8 writes are split as follows [0, 1, 0, 0, 7, 0]. [2023-11-29 04:32:58,673 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:58" (1/1) ... [2023-11-29 04:32:58,673 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:58" (1/1) ... [2023-11-29 04:32:58,716 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:58" (1/1) ... [2023-11-29 04:32:58,722 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:58" (1/1) ... [2023-11-29 04:32:58,734 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:58" (1/1) ... [2023-11-29 04:32:58,742 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:58" (1/1) ... [2023-11-29 04:32:58,760 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:32:58,761 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:32:58,761 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:32:58,762 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:32:58,763 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:58" (1/1) ... [2023-11-29 04:32:58,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:32:58,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:32:58,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:32:58,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:32:58,872 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-29 04:32:58,872 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-29 04:32:58,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 04:32:58,873 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-29 04:32:58,873 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-29 04:32:58,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 04:32:58,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 04:32:58,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 04:32:58,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 04:32:58,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 04:32:58,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 04:32:58,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 04:32:58,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 04:32:58,875 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_secure_zero [2023-11-29 04:32:58,875 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_secure_zero [2023-11-29 04:32:58,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 04:32:58,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:32:58,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 04:32:58,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 04:32:58,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 04:32:58,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 04:32:58,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 04:32:58,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-29 04:32:58,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:32:58,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:32:58,876 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-29 04:32:58,876 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-29 04:32:58,877 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-11-29 04:32:58,877 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-11-29 04:32:58,877 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 04:32:58,877 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 04:32:58,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 04:32:58,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 04:32:58,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 04:32:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 04:32:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 04:32:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 04:32:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-29 04:32:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-29 04:32:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-29 04:32:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-29 04:32:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-29 04:32:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-29 04:32:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-29 04:32:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-29 04:32:58,879 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-29 04:32:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 04:32:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 04:32:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 04:32:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 04:32:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 04:32:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 04:32:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2023-11-29 04:32:58,880 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2023-11-29 04:32:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2023-11-29 04:32:58,881 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2023-11-29 04:32:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:32:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 04:32:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 04:32:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 04:32:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 04:32:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 04:32:59,210 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:32:59,213 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:33:00,604 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:33:00,825 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:33:00,825 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:33:00,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:33:00 BoogieIcfgContainer [2023-11-29 04:33:00,825 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:33:00,828 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:33:00,828 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:33:00,830 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:33:00,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:32:55" (1/3) ... [2023-11-29 04:33:00,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63794fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:33:00, skipping insertion in model container [2023-11-29 04:33:00,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:58" (2/3) ... [2023-11-29 04:33:00,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63794fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:33:00, skipping insertion in model container [2023-11-29 04:33:00,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:33:00" (3/3) ... [2023-11-29 04:33:00,833 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_clean_up_secure_harness.i [2023-11-29 04:33:00,848 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:33:00,848 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 04:33:00,892 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:33:00,899 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;@28a52b9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:33:00,900 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 04:33:00,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 64 states have internal predecessors, (81), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 04:33:00,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 04:33:00,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:33:00,917 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:33:00,917 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:33:00,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:33:00,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1982467764, now seen corresponding path program 1 times [2023-11-29 04:33:00,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:33:00,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631716124] [2023-11-29 04:33:00,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:00,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:33:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:01,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:01,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:33:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:01,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:33:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:01,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:01,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:33:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:01,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-29 04:33:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:01,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 04:33:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:01,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-29 04:33:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:01,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 04:33:01,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:01,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 04:33:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:01,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 04:33:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:01,976 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 04:33:01,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:33:01,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631716124] [2023-11-29 04:33:01,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631716124] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:33:01,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177289967] [2023-11-29 04:33:01,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:01,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:33:01,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:33:01,979 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:33:01,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:33:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:02,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 2483 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:33:02,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:33:02,782 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 04:33:02,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:33:02,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177289967] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:33:02,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:33:02,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2023-11-29 04:33:02,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664024592] [2023-11-29 04:33:02,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:33:02,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:33:02,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:33:02,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:33:02,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:33:02,831 INFO L87 Difference]: Start difference. First operand has 103 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 64 states have internal predecessors, (81), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 04:33:03,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:33:03,993 INFO L93 Difference]: Finished difference Result 206 states and 298 transitions. [2023-11-29 04:33:03,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:33:03,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 68 [2023-11-29 04:33:03,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:33:04,010 INFO L225 Difference]: With dead ends: 206 [2023-11-29 04:33:04,010 INFO L226 Difference]: Without dead ends: 103 [2023-11-29 04:33:04,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:33:04,020 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 34 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:33:04,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 373 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:33:04,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-29 04:33:04,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2023-11-29 04:33:04,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 65 states have internal predecessors, (78), 28 states have call successors, (28), 10 states have call predecessors, (28), 11 states have return successors, (32), 27 states have call predecessors, (32), 27 states have call successors, (32) [2023-11-29 04:33:04,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 138 transitions. [2023-11-29 04:33:04,078 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 138 transitions. Word has length 68 [2023-11-29 04:33:04,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:33:04,078 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 138 transitions. [2023-11-29 04:33:04,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 04:33:04,079 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 138 transitions. [2023-11-29 04:33:04,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 04:33:04,083 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:33:04,083 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:33:04,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:33:04,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:33:04,284 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:33:04,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:33:04,285 INFO L85 PathProgramCache]: Analyzing trace with hash 435423449, now seen corresponding path program 1 times [2023-11-29 04:33:04,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:33:04,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24119590] [2023-11-29 04:33:04,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:04,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:33:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:04,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:04,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:33:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:04,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:33:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:04,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:04,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:33:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:04,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 04:33:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:04,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:33:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:04,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 04:33:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:04,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-29 04:33:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:04,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 04:33:04,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:04,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 04:33:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:04,865 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-29 04:33:04,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:33:04,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24119590] [2023-11-29 04:33:04,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24119590] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:33:04,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987773043] [2023-11-29 04:33:04,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:04,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:33:04,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:33:04,869 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:33:04,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:33:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:05,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 2497 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:33:05,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:33:05,552 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 04:33:05,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:33:05,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987773043] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:33:05,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:33:05,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2023-11-29 04:33:05,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250037916] [2023-11-29 04:33:05,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:33:05,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:33:05,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:33:05,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:33:05,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:33:05,557 INFO L87 Difference]: Start difference. First operand 103 states and 138 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-29 04:33:06,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:33:06,139 INFO L93 Difference]: Finished difference Result 209 states and 291 transitions. [2023-11-29 04:33:06,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:33:06,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 74 [2023-11-29 04:33:06,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:33:06,142 INFO L225 Difference]: With dead ends: 209 [2023-11-29 04:33:06,142 INFO L226 Difference]: Without dead ends: 125 [2023-11-29 04:33:06,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:33:06,145 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 42 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:33:06,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 358 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:33:06,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-29 04:33:06,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 105. [2023-11-29 04:33:06,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 65 states have (on average 1.2307692307692308) internal successors, (80), 67 states have internal predecessors, (80), 28 states have call successors, (28), 10 states have call predecessors, (28), 11 states have return successors, (32), 27 states have call predecessors, (32), 27 states have call successors, (32) [2023-11-29 04:33:06,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 140 transitions. [2023-11-29 04:33:06,159 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 140 transitions. Word has length 74 [2023-11-29 04:33:06,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:33:06,160 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 140 transitions. [2023-11-29 04:33:06,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-29 04:33:06,160 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 140 transitions. [2023-11-29 04:33:06,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 04:33:06,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:33:06,162 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:33:06,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 04:33:06,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:33:06,363 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:33:06,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:33:06,363 INFO L85 PathProgramCache]: Analyzing trace with hash 82335067, now seen corresponding path program 1 times [2023-11-29 04:33:06,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:33:06,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748740635] [2023-11-29 04:33:06,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:06,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:33:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:06,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:06,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:33:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:06,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:33:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:06,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:06,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:33:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:06,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 04:33:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:06,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:33:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:06,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 04:33:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:06,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-29 04:33:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:06,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 04:33:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:06,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 04:33:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:06,747 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-29 04:33:06,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:33:06,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748740635] [2023-11-29 04:33:06,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748740635] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:33:06,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148500243] [2023-11-29 04:33:06,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:06,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:33:06,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:33:06,750 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:33:06,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:33:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:07,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 2492 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:33:07,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:33:07,382 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 04:33:07,382 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:33:07,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148500243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:33:07,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:33:07,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2023-11-29 04:33:07,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300829110] [2023-11-29 04:33:07,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:33:07,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:33:07,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:33:07,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:33:07,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:33:07,385 INFO L87 Difference]: Start difference. First operand 105 states and 140 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-29 04:33:08,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:33:08,066 INFO L93 Difference]: Finished difference Result 201 states and 278 transitions. [2023-11-29 04:33:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:33:08,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 74 [2023-11-29 04:33:08,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:33:08,070 INFO L225 Difference]: With dead ends: 201 [2023-11-29 04:33:08,070 INFO L226 Difference]: Without dead ends: 115 [2023-11-29 04:33:08,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:33:08,073 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 29 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:33:08,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 339 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:33:08,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-29 04:33:08,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 107. [2023-11-29 04:33:08,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 67 states have (on average 1.2238805970149254) internal successors, (82), 69 states have internal predecessors, (82), 28 states have call successors, (28), 10 states have call predecessors, (28), 11 states have return successors, (32), 27 states have call predecessors, (32), 27 states have call successors, (32) [2023-11-29 04:33:08,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 142 transitions. [2023-11-29 04:33:08,093 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 142 transitions. Word has length 74 [2023-11-29 04:33:08,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:33:08,094 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 142 transitions. [2023-11-29 04:33:08,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-29 04:33:08,094 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 142 transitions. [2023-11-29 04:33:08,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 04:33:08,096 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:33:08,097 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:33:08,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 04:33:08,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:33:08,298 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:33:08,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:33:08,298 INFO L85 PathProgramCache]: Analyzing trace with hash 450942167, now seen corresponding path program 1 times [2023-11-29 04:33:08,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:33:08,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108640430] [2023-11-29 04:33:08,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:08,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:33:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:08,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:08,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:33:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:08,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:33:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:08,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:08,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:33:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:08,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 04:33:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:08,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:33:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:08,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 04:33:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:08,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-29 04:33:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:08,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 04:33:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:08,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 04:33:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:08,975 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 04:33:08,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:33:08,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108640430] [2023-11-29 04:33:08,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108640430] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:33:08,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842683186] [2023-11-29 04:33:08,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:08,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:33:08,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:33:08,978 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:33:08,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:33:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:09,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:33:09,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:33:09,722 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-29 04:33:09,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:33:09,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842683186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:33:09,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:33:09,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2023-11-29 04:33:09,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629362347] [2023-11-29 04:33:09,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:33:09,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:33:09,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:33:09,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:33:09,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:33:09,725 INFO L87 Difference]: Start difference. First operand 107 states and 142 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 04:33:10,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:33:10,605 INFO L93 Difference]: Finished difference Result 192 states and 255 transitions. [2023-11-29 04:33:10,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:33:10,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 74 [2023-11-29 04:33:10,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:33:10,607 INFO L225 Difference]: With dead ends: 192 [2023-11-29 04:33:10,607 INFO L226 Difference]: Without dead ends: 107 [2023-11-29 04:33:10,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:33:10,609 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 43 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:33:10,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 467 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 04:33:10,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-29 04:33:10,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-11-29 04:33:10,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 67 states have (on average 1.2238805970149254) internal successors, (82), 69 states have internal predecessors, (82), 28 states have call successors, (28), 10 states have call predecessors, (28), 11 states have return successors, (30), 27 states have call predecessors, (30), 27 states have call successors, (30) [2023-11-29 04:33:10,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 140 transitions. [2023-11-29 04:33:10,623 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 140 transitions. Word has length 74 [2023-11-29 04:33:10,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:33:10,623 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 140 transitions. [2023-11-29 04:33:10,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 04:33:10,624 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 140 transitions. [2023-11-29 04:33:10,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 04:33:10,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:33:10,626 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:33:10,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 04:33:10,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:33:10,836 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:33:10,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:33:10,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1566664812, now seen corresponding path program 2 times [2023-11-29 04:33:10,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:33:10,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767501250] [2023-11-29 04:33:10,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:10,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:33:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:11,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:11,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:33:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:11,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:33:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:11,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:11,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:33:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:11,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 04:33:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:11,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:33:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:11,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 04:33:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:11,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 04:33:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:11,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 04:33:11,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:11,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 04:33:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:11,575 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-11-29 04:33:11,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:33:11,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767501250] [2023-11-29 04:33:11,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767501250] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:33:11,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360436430] [2023-11-29 04:33:11,576 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:33:11,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:33:11,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:33:11,578 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:33:11,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 04:33:12,245 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:33:12,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:33:12,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 2517 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:33:12,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:33:12,396 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-11-29 04:33:12,397 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:33:12,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360436430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:33:12,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:33:12,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2023-11-29 04:33:12,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864722238] [2023-11-29 04:33:12,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:33:12,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:33:12,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:33:12,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:33:12,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:33:12,399 INFO L87 Difference]: Start difference. First operand 107 states and 140 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 5 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 04:33:13,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:33:13,356 INFO L93 Difference]: Finished difference Result 187 states and 244 transitions. [2023-11-29 04:33:13,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:33:13,357 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 5 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 80 [2023-11-29 04:33:13,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:33:13,358 INFO L225 Difference]: With dead ends: 187 [2023-11-29 04:33:13,358 INFO L226 Difference]: Without dead ends: 107 [2023-11-29 04:33:13,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:33:13,360 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 52 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:33:13,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 651 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 04:33:13,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-29 04:33:13,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-11-29 04:33:13,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 67 states have (on average 1.2238805970149254) internal successors, (82), 69 states have internal predecessors, (82), 28 states have call successors, (28), 10 states have call predecessors, (28), 11 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) [2023-11-29 04:33:13,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 138 transitions. [2023-11-29 04:33:13,372 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 138 transitions. Word has length 80 [2023-11-29 04:33:13,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:33:13,372 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 138 transitions. [2023-11-29 04:33:13,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 5 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 04:33:13,372 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 138 transitions. [2023-11-29 04:33:13,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-29 04:33:13,374 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:33:13,374 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:33:13,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 04:33:13,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:33:13,575 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:33:13,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:33:13,575 INFO L85 PathProgramCache]: Analyzing trace with hash -861552116, now seen corresponding path program 1 times [2023-11-29 04:33:13,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:33:13,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641160990] [2023-11-29 04:33:13,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:13,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:33:13,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:14,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:14,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:33:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:14,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:33:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:14,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:14,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:33:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:14,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 04:33:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:14,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:33:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:14,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 04:33:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:14,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 04:33:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:14,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 04:33:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:14,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 04:33:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:14,707 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-29 04:33:14,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:33:14,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641160990] [2023-11-29 04:33:14,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641160990] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:33:14,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:33:14,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:33:14,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104653421] [2023-11-29 04:33:14,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:33:14,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:33:14,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:33:14,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:33:14,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:33:14,710 INFO L87 Difference]: Start difference. First operand 107 states and 138 transitions. Second operand has 9 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-29 04:33:16,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:33:16,788 INFO L93 Difference]: Finished difference Result 120 states and 156 transitions. [2023-11-29 04:33:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:33:16,789 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 92 [2023-11-29 04:33:16,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:33:16,791 INFO L225 Difference]: With dead ends: 120 [2023-11-29 04:33:16,791 INFO L226 Difference]: Without dead ends: 118 [2023-11-29 04:33:16,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:33:16,792 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 89 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:33:16,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 296 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 04:33:16,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-29 04:33:16,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 115. [2023-11-29 04:33:16,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 72 states have (on average 1.2083333333333333) internal successors, (87), 75 states have internal predecessors, (87), 29 states have call successors, (29), 11 states have call predecessors, (29), 13 states have return successors, (35), 28 states have call predecessors, (35), 28 states have call successors, (35) [2023-11-29 04:33:16,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 151 transitions. [2023-11-29 04:33:16,805 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 151 transitions. Word has length 92 [2023-11-29 04:33:16,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:33:16,806 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 151 transitions. [2023-11-29 04:33:16,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-29 04:33:16,806 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 151 transitions. [2023-11-29 04:33:16,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 04:33:16,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:33:16,807 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:33:16,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 04:33:16,808 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:33:16,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:33:16,808 INFO L85 PathProgramCache]: Analyzing trace with hash -289777856, now seen corresponding path program 1 times [2023-11-29 04:33:16,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:33:16,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547358992] [2023-11-29 04:33:16,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:16,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:33:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:17,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:18,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:33:18,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:18,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:33:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:18,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:18,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:33:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:18,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 04:33:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:18,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:33:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:18,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 04:33:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:18,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 04:33:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:18,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 04:33:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:18,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 04:33:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:18,253 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 04:33:18,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:33:18,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547358992] [2023-11-29 04:33:18,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547358992] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:33:18,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:33:18,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 04:33:18,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725932173] [2023-11-29 04:33:18,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:33:18,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:33:18,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:33:18,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:33:18,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:33:18,256 INFO L87 Difference]: Start difference. First operand 115 states and 151 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-29 04:33:20,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:33:20,206 INFO L93 Difference]: Finished difference Result 193 states and 254 transitions. [2023-11-29 04:33:20,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:33:20,207 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2023-11-29 04:33:20,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:33:20,209 INFO L225 Difference]: With dead ends: 193 [2023-11-29 04:33:20,209 INFO L226 Difference]: Without dead ends: 128 [2023-11-29 04:33:20,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:33:20,211 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 101 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:33:20,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 199 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 04:33:20,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-29 04:33:20,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 121. [2023-11-29 04:33:20,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 77 states have (on average 1.2077922077922079) internal successors, (93), 81 states have internal predecessors, (93), 29 states have call successors, (29), 11 states have call predecessors, (29), 14 states have return successors, (40), 28 states have call predecessors, (40), 28 states have call successors, (40) [2023-11-29 04:33:20,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 162 transitions. [2023-11-29 04:33:20,231 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 162 transitions. Word has length 96 [2023-11-29 04:33:20,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:33:20,232 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 162 transitions. [2023-11-29 04:33:20,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-29 04:33:20,232 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 162 transitions. [2023-11-29 04:33:20,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 04:33:20,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:33:20,235 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:33:20,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 04:33:20,235 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:33:20,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:33:20,236 INFO L85 PathProgramCache]: Analyzing trace with hash 411286722, now seen corresponding path program 1 times [2023-11-29 04:33:20,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:33:20,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937610008] [2023-11-29 04:33:20,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:20,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:33:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:21,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:21,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:33:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:21,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:33:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:21,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:21,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:33:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:21,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 04:33:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:21,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:33:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:21,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 04:33:21,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:21,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 04:33:21,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:21,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 04:33:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:21,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 04:33:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:21,219 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-29 04:33:21,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:33:21,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937610008] [2023-11-29 04:33:21,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937610008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:33:21,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:33:21,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 04:33:21,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352083648] [2023-11-29 04:33:21,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:33:21,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:33:21,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:33:21,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:33:21,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:33:21,222 INFO L87 Difference]: Start difference. First operand 121 states and 162 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-29 04:33:22,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:33:22,476 INFO L93 Difference]: Finished difference Result 240 states and 335 transitions. [2023-11-29 04:33:22,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:33:22,476 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2023-11-29 04:33:22,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:33:22,479 INFO L225 Difference]: With dead ends: 240 [2023-11-29 04:33:22,479 INFO L226 Difference]: Without dead ends: 138 [2023-11-29 04:33:22,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:33:22,481 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 84 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:33:22,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 184 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 04:33:22,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-29 04:33:22,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 124. [2023-11-29 04:33:22,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 80 states have (on average 1.2) internal successors, (96), 84 states have internal predecessors, (96), 29 states have call successors, (29), 11 states have call predecessors, (29), 14 states have return successors, (40), 28 states have call predecessors, (40), 28 states have call successors, (40) [2023-11-29 04:33:22,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 165 transitions. [2023-11-29 04:33:22,498 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 165 transitions. Word has length 96 [2023-11-29 04:33:22,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:33:22,499 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 165 transitions. [2023-11-29 04:33:22,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-29 04:33:22,499 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 165 transitions. [2023-11-29 04:33:22,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 04:33:22,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:33:22,501 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:33:22,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 04:33:22,501 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:33:22,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:33:22,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1851494970, now seen corresponding path program 1 times [2023-11-29 04:33:22,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:33:22,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638779081] [2023-11-29 04:33:22,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:22,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:33:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:25,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:25,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:33:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:25,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:33:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:25,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:25,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:33:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:25,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 04:33:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:25,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:33:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:25,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 04:33:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:25,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 04:33:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:25,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 04:33:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:25,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 04:33:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:25,753 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 36 proven. 5 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2023-11-29 04:33:25,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:33:25,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638779081] [2023-11-29 04:33:25,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638779081] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:33:25,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680604280] [2023-11-29 04:33:25,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:25,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:33:25,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:33:25,755 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:33:25,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 04:33:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:26,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 2558 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 04:33:26,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:33:26,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 04:33:26,973 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-29 04:33:26,973 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:33:26,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680604280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:33:26,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:33:26,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 24 [2023-11-29 04:33:26,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867660613] [2023-11-29 04:33:26,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:33:26,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:33:26,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:33:26,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:33:26,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:33:26,976 INFO L87 Difference]: Start difference. First operand 124 states and 165 transitions. Second operand has 12 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 5 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 04:33:32,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:33:36,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:33:40,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:33:45,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:33:49,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:33:49,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:33:49,552 INFO L93 Difference]: Finished difference Result 267 states and 346 transitions. [2023-11-29 04:33:49,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:33:49,553 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 5 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 96 [2023-11-29 04:33:49,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:33:49,555 INFO L225 Difference]: With dead ends: 267 [2023-11-29 04:33:49,555 INFO L226 Difference]: Without dead ends: 160 [2023-11-29 04:33:49,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2023-11-29 04:33:49,557 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 93 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 15 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:33:49,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 544 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 312 Invalid, 5 Unknown, 0 Unchecked, 22.4s Time] [2023-11-29 04:33:49,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-29 04:33:49,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2023-11-29 04:33:49,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 107 states have (on average 1.205607476635514) internal successors, (129), 112 states have internal predecessors, (129), 29 states have call successors, (29), 13 states have call predecessors, (29), 17 states have return successors, (36), 28 states have call predecessors, (36), 28 states have call successors, (36) [2023-11-29 04:33:49,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 194 transitions. [2023-11-29 04:33:49,575 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 194 transitions. Word has length 96 [2023-11-29 04:33:49,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:33:49,575 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 194 transitions. [2023-11-29 04:33:49,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 5 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 04:33:49,575 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 194 transitions. [2023-11-29 04:33:49,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 04:33:49,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:33:49,577 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:33:49,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 04:33:49,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 04:33:49,778 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:33:49,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:33:49,779 INFO L85 PathProgramCache]: Analyzing trace with hash 741421714, now seen corresponding path program 1 times [2023-11-29 04:33:49,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:33:49,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533809970] [2023-11-29 04:33:49,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:49,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:33:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:50,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:50,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:33:50,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:50,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:33:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:50,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:50,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:33:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:50,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 04:33:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:50,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 04:33:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:50,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 04:33:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:50,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:33:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:50,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 04:33:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:50,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-29 04:33:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:50,960 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-29 04:33:50,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:33:50,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533809970] [2023-11-29 04:33:50,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533809970] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:33:50,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593216962] [2023-11-29 04:33:50,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:50,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:33:50,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:33:50,962 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:33:50,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 04:33:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:51,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 2562 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 04:33:51,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:33:51,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-29 04:33:51,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-29 04:33:52,254 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-29 04:33:52,254 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:33:52,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593216962] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:33:52,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:33:52,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2023-11-29 04:33:52,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468635434] [2023-11-29 04:33:52,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:33:52,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:33:52,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:33:52,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:33:52,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:33:52,257 INFO L87 Difference]: Start difference. First operand 154 states and 194 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-29 04:33:58,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:33:58,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:33:58,588 INFO L93 Difference]: Finished difference Result 314 states and 396 transitions. [2023-11-29 04:33:58,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:33:58,589 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2023-11-29 04:33:58,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:33:58,591 INFO L225 Difference]: With dead ends: 314 [2023-11-29 04:33:58,591 INFO L226 Difference]: Without dead ends: 240 [2023-11-29 04:33:58,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:33:58,593 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 115 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:33:58,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 531 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 389 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2023-11-29 04:33:58,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-11-29 04:33:58,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 224. [2023-11-29 04:33:58,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 161 states have (on average 1.2298136645962734) internal successors, (198), 169 states have internal predecessors, (198), 37 states have call successors, (37), 18 states have call predecessors, (37), 25 states have return successors, (48), 36 states have call predecessors, (48), 36 states have call successors, (48) [2023-11-29 04:33:58,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 283 transitions. [2023-11-29 04:33:58,611 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 283 transitions. Word has length 100 [2023-11-29 04:33:58,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:33:58,612 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 283 transitions. [2023-11-29 04:33:58,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-29 04:33:58,612 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 283 transitions. [2023-11-29 04:33:58,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 04:33:58,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:33:58,614 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:33:58,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 04:33:58,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 04:33:58,816 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:33:58,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:33:58,817 INFO L85 PathProgramCache]: Analyzing trace with hash -269695536, now seen corresponding path program 2 times [2023-11-29 04:33:58,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:33:58,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918819709] [2023-11-29 04:33:58,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:58,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:33:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:59,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:59,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:33:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:59,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:33:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:59,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:33:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:59,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:33:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:59,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 04:33:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:59,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 04:33:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:59,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 04:33:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:59,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:33:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:59,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 04:33:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:59,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-29 04:33:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:59,782 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 04:33:59,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:33:59,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918819709] [2023-11-29 04:33:59,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918819709] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:33:59,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:33:59,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:33:59,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440674994] [2023-11-29 04:33:59,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:33:59,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:33:59,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:33:59,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:33:59,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:33:59,786 INFO L87 Difference]: Start difference. First operand 224 states and 283 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-29 04:34:01,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:01,869 INFO L93 Difference]: Finished difference Result 421 states and 536 transitions. [2023-11-29 04:34:01,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:34:01,869 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2023-11-29 04:34:01,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:01,872 INFO L225 Difference]: With dead ends: 421 [2023-11-29 04:34:01,873 INFO L226 Difference]: Without dead ends: 284 [2023-11-29 04:34:01,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:34:01,874 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 124 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:01,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 230 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 04:34:01,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-29 04:34:01,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 226. [2023-11-29 04:34:01,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 163 states have (on average 1.2331288343558282) internal successors, (201), 171 states have internal predecessors, (201), 37 states have call successors, (37), 18 states have call predecessors, (37), 25 states have return successors, (48), 36 states have call predecessors, (48), 36 states have call successors, (48) [2023-11-29 04:34:01,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 286 transitions. [2023-11-29 04:34:01,898 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 286 transitions. Word has length 100 [2023-11-29 04:34:01,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:01,899 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 286 transitions. [2023-11-29 04:34:01,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-29 04:34:01,899 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 286 transitions. [2023-11-29 04:34:01,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 04:34:01,901 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:01,902 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:34:01,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 04:34:01,902 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:34:01,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:01,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1870706777, now seen corresponding path program 1 times [2023-11-29 04:34:01,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:01,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021085393] [2023-11-29 04:34:01,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:01,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:02,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:34:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:02,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:34:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:02,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:34:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:02,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:34:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:02,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:34:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:02,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 04:34:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:02,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 04:34:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:02,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 04:34:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:02,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:34:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:02,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 04:34:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:02,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-29 04:34:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:02,959 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-11-29 04:34:02,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:02,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021085393] [2023-11-29 04:34:02,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021085393] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:34:02,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:34:02,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:34:02,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746559734] [2023-11-29 04:34:02,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:34:02,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:34:02,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:02,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:34:02,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:34:02,962 INFO L87 Difference]: Start difference. First operand 226 states and 286 transitions. Second operand has 11 states, 9 states have (on average 4.666666666666667) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-29 04:34:05,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:05,125 INFO L93 Difference]: Finished difference Result 269 states and 336 transitions. [2023-11-29 04:34:05,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:34:05,125 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.666666666666667) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 102 [2023-11-29 04:34:05,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:05,127 INFO L225 Difference]: With dead ends: 269 [2023-11-29 04:34:05,128 INFO L226 Difference]: Without dead ends: 267 [2023-11-29 04:34:05,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:34:05,129 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 99 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:05,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 373 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 04:34:05,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-11-29 04:34:05,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 230. [2023-11-29 04:34:05,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 167 states have (on average 1.2275449101796407) internal successors, (205), 175 states have internal predecessors, (205), 37 states have call successors, (37), 18 states have call predecessors, (37), 25 states have return successors, (48), 36 states have call predecessors, (48), 36 states have call successors, (48) [2023-11-29 04:34:05,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 290 transitions. [2023-11-29 04:34:05,141 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 290 transitions. Word has length 102 [2023-11-29 04:34:05,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:05,141 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 290 transitions. [2023-11-29 04:34:05,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.666666666666667) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-29 04:34:05,141 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 290 transitions. [2023-11-29 04:34:05,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 04:34:05,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:05,142 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:34:05,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 04:34:05,143 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:34:05,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:05,143 INFO L85 PathProgramCache]: Analyzing trace with hash 2031233509, now seen corresponding path program 1 times [2023-11-29 04:34:05,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:05,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621254491] [2023-11-29 04:34:05,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:05,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:05,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:34:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:05,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:34:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:05,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:34:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:05,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:34:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:05,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:34:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:05,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 04:34:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:05,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 04:34:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:05,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 04:34:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:05,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:34:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:05,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 04:34:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:05,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-29 04:34:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:05,850 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-29 04:34:05,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:05,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621254491] [2023-11-29 04:34:05,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621254491] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:34:05,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098600378] [2023-11-29 04:34:05,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:05,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:05,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:05,852 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:05,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 04:34:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:06,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 2569 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 04:34:06,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:06,340 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 04:34:06,340 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:34:06,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098600378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:34:06,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:34:06,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 11 [2023-11-29 04:34:06,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907065807] [2023-11-29 04:34:06,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:34:06,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:34:06,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:06,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:34:06,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:34:06,343 INFO L87 Difference]: Start difference. First operand 230 states and 290 transitions. Second operand has 9 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 04:34:07,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:07,497 INFO L93 Difference]: Finished difference Result 458 states and 578 transitions. [2023-11-29 04:34:07,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:34:07,498 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 102 [2023-11-29 04:34:07,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:07,500 INFO L225 Difference]: With dead ends: 458 [2023-11-29 04:34:07,501 INFO L226 Difference]: Without dead ends: 247 [2023-11-29 04:34:07,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:34:07,503 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 13 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:07,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 853 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:34:07,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-11-29 04:34:07,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 231. [2023-11-29 04:34:07,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 168 states have (on average 1.2261904761904763) internal successors, (206), 176 states have internal predecessors, (206), 37 states have call successors, (37), 18 states have call predecessors, (37), 25 states have return successors, (48), 36 states have call predecessors, (48), 36 states have call successors, (48) [2023-11-29 04:34:07,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 291 transitions. [2023-11-29 04:34:07,526 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 291 transitions. Word has length 102 [2023-11-29 04:34:07,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:07,526 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 291 transitions. [2023-11-29 04:34:07,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 04:34:07,527 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 291 transitions. [2023-11-29 04:34:07,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 04:34:07,529 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:07,529 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:34:07,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 04:34:07,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 04:34:07,736 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:34:07,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:07,737 INFO L85 PathProgramCache]: Analyzing trace with hash -740221334, now seen corresponding path program 1 times [2023-11-29 04:34:07,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:07,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433230596] [2023-11-29 04:34:07,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:07,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:08,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:34:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:08,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:34:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:08,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:34:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:08,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:34:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:08,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:34:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:08,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:34:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:08,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 04:34:08,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:08,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 04:34:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:08,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-29 04:34:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:08,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 04:34:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:08,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-29 04:34:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:08,815 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 04:34:08,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:08,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433230596] [2023-11-29 04:34:08,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433230596] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:34:08,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:34:08,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 04:34:08,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478154691] [2023-11-29 04:34:08,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:34:08,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:34:08,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:08,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:34:08,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:34:08,819 INFO L87 Difference]: Start difference. First operand 231 states and 291 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-29 04:34:10,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:10,730 INFO L93 Difference]: Finished difference Result 406 states and 507 transitions. [2023-11-29 04:34:10,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:34:10,731 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2023-11-29 04:34:10,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:10,733 INFO L225 Difference]: With dead ends: 406 [2023-11-29 04:34:10,733 INFO L226 Difference]: Without dead ends: 263 [2023-11-29 04:34:10,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:34:10,735 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 93 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:10,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 196 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 04:34:10,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-11-29 04:34:10,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 224. [2023-11-29 04:34:10,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 163 states have (on average 1.2331288343558282) internal successors, (201), 170 states have internal predecessors, (201), 36 states have call successors, (36), 18 states have call predecessors, (36), 24 states have return successors, (44), 35 states have call predecessors, (44), 35 states have call successors, (44) [2023-11-29 04:34:10,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 281 transitions. [2023-11-29 04:34:10,750 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 281 transitions. Word has length 104 [2023-11-29 04:34:10,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:10,750 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 281 transitions. [2023-11-29 04:34:10,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-29 04:34:10,751 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 281 transitions. [2023-11-29 04:34:10,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 04:34:10,752 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:10,753 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:34:10,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 04:34:10,753 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:34:10,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:10,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1391808233, now seen corresponding path program 1 times [2023-11-29 04:34:10,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:10,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304310730] [2023-11-29 04:34:10,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:10,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:12,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:34:12,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:12,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:34:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:12,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:34:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:12,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:34:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:12,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:34:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:12,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:34:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:12,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 04:34:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:12,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 04:34:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:12,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-29 04:34:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:12,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 04:34:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:13,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 04:34:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:13,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:34:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:13,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:34:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:13,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-29 04:34:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:13,052 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-11-29 04:34:13,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:13,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304310730] [2023-11-29 04:34:13,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304310730] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:34:13,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781178239] [2023-11-29 04:34:13,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:13,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:13,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:13,054 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:13,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 04:34:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:13,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 2657 conjuncts, 70 conjunts are in the unsatisfiable core [2023-11-29 04:34:13,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:14,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-29 04:34:14,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-29 04:34:14,747 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 81 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 04:34:14,747 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:34:15,482 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 40 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-29 04:34:15,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781178239] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:34:15,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:34:15,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 11] total 32 [2023-11-29 04:34:15,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49089929] [2023-11-29 04:34:15,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:34:15,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-29 04:34:15,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:15,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-29 04:34:15,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=881, Unknown=0, NotChecked=0, Total=992 [2023-11-29 04:34:15,486 INFO L87 Difference]: Start difference. First operand 224 states and 281 transitions. Second operand has 32 states, 29 states have (on average 4.172413793103448) internal successors, (121), 29 states have internal predecessors, (121), 9 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (29), 6 states have call predecessors, (29), 9 states have call successors, (29) [2023-11-29 04:34:26,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:34:26,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:26,166 INFO L93 Difference]: Finished difference Result 704 states and 890 transitions. [2023-11-29 04:34:26,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-29 04:34:26,166 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 4.172413793103448) internal successors, (121), 29 states have internal predecessors, (121), 9 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (29), 6 states have call predecessors, (29), 9 states have call successors, (29) Word has length 117 [2023-11-29 04:34:26,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:26,169 INFO L225 Difference]: With dead ends: 704 [2023-11-29 04:34:26,169 INFO L226 Difference]: Without dead ends: 508 [2023-11-29 04:34:26,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 249 SyntacticMatches, 4 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 948 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=654, Invalid=3506, Unknown=0, NotChecked=0, Total=4160 [2023-11-29 04:34:26,172 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 523 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 2773 mSolverCounterSat, 224 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 2998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 2773 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:26,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 301 Invalid, 2998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 2773 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2023-11-29 04:34:26,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-11-29 04:34:26,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 352. [2023-11-29 04:34:26,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 271 states have (on average 1.2140221402214022) internal successors, (329), 280 states have internal predecessors, (329), 45 states have call successors, (45), 26 states have call predecessors, (45), 35 states have return successors, (64), 45 states have call predecessors, (64), 44 states have call successors, (64) [2023-11-29 04:34:26,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 438 transitions. [2023-11-29 04:34:26,205 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 438 transitions. Word has length 117 [2023-11-29 04:34:26,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:26,205 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 438 transitions. [2023-11-29 04:34:26,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 4.172413793103448) internal successors, (121), 29 states have internal predecessors, (121), 9 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (29), 6 states have call predecessors, (29), 9 states have call successors, (29) [2023-11-29 04:34:26,206 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 438 transitions. [2023-11-29 04:34:26,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-29 04:34:26,208 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:26,208 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:34:26,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 04:34:26,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 04:34:26,409 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:34:26,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:26,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1358449769, now seen corresponding path program 1 times [2023-11-29 04:34:26,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:26,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151203845] [2023-11-29 04:34:26,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:26,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:26,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:34:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:26,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:34:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:27,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:34:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:27,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:34:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:27,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:34:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:27,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:34:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:27,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 04:34:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:27,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 04:34:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:27,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 04:34:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:27,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-29 04:34:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:27,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-29 04:34:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:27,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:34:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:27,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:34:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:27,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-29 04:34:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:27,178 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 13 proven. 14 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2023-11-29 04:34:27,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:27,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151203845] [2023-11-29 04:34:27,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151203845] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:34:27,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733426058] [2023-11-29 04:34:27,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:27,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:27,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:27,180 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:27,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 04:34:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:27,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 2665 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-29 04:34:27,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:27,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-29 04:34:28,086 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-29 04:34:28,086 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:34:28,527 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 26 proven. 13 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 04:34:28,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733426058] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:34:28,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:34:28,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 11] total 25 [2023-11-29 04:34:28,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372307153] [2023-11-29 04:34:28,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:34:28,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 04:34:28,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:28,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 04:34:28,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2023-11-29 04:34:28,530 INFO L87 Difference]: Start difference. First operand 352 states and 438 transitions. Second operand has 25 states, 20 states have (on average 4.85) internal successors, (97), 22 states have internal predecessors, (97), 9 states have call successors, (28), 5 states have call predecessors, (28), 8 states have return successors, (25), 7 states have call predecessors, (25), 9 states have call successors, (25) [2023-11-29 04:34:33,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:34:38,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:34:42,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:34:47,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:34:51,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:34:55,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:34:59,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:35:05,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:35:09,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:35:13,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:35:18,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:35:22,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:35:26,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:35:31,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:35:35,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:35:39,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:35:44,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:35:44,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:35:44,051 INFO L93 Difference]: Finished difference Result 1074 states and 1370 transitions. [2023-11-29 04:35:44,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-11-29 04:35:44,052 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 20 states have (on average 4.85) internal successors, (97), 22 states have internal predecessors, (97), 9 states have call successors, (28), 5 states have call predecessors, (28), 8 states have return successors, (25), 7 states have call predecessors, (25), 9 states have call successors, (25) Word has length 125 [2023-11-29 04:35:44,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:35:44,056 INFO L225 Difference]: With dead ends: 1074 [2023-11-29 04:35:44,056 INFO L226 Difference]: Without dead ends: 754 [2023-11-29 04:35:44,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 268 SyntacticMatches, 4 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1045 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=641, Invalid=4471, Unknown=0, NotChecked=0, Total=5112 [2023-11-29 04:35:44,060 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 416 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 2789 mSolverCounterSat, 193 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 2999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 2789 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:35:44,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 841 Invalid, 2999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 2789 Invalid, 17 Unknown, 0 Unchecked, 73.2s Time] [2023-11-29 04:35:44,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2023-11-29 04:35:44,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 562. [2023-11-29 04:35:44,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 434 states have (on average 1.2211981566820276) internal successors, (530), 451 states have internal predecessors, (530), 68 states have call successors, (68), 42 states have call predecessors, (68), 59 states have return successors, (120), 68 states have call predecessors, (120), 67 states have call successors, (120) [2023-11-29 04:35:44,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 718 transitions. [2023-11-29 04:35:44,130 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 718 transitions. Word has length 125 [2023-11-29 04:35:44,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:35:44,131 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 718 transitions. [2023-11-29 04:35:44,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 20 states have (on average 4.85) internal successors, (97), 22 states have internal predecessors, (97), 9 states have call successors, (28), 5 states have call predecessors, (28), 8 states have return successors, (25), 7 states have call predecessors, (25), 9 states have call successors, (25) [2023-11-29 04:35:44,131 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 718 transitions. [2023-11-29 04:35:44,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 04:35:44,134 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:35:44,135 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:35:44,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 04:35:44,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 04:35:44,335 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:35:44,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:35:44,336 INFO L85 PathProgramCache]: Analyzing trace with hash -327207392, now seen corresponding path program 1 times [2023-11-29 04:35:44,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:35:44,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354155387] [2023-11-29 04:35:44,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:35:44,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:35:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:44,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:44,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:35:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:44,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:35:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:44,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:44,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:35:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:44,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:35:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:44,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 04:35:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:44,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:35:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:44,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 04:35:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:45,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 04:35:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:45,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 04:35:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:45,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:45,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 04:35:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:45,097 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 36 proven. 15 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-11-29 04:35:45,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:35:45,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354155387] [2023-11-29 04:35:45,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354155387] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:35:45,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535291389] [2023-11-29 04:35:45,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:35:45,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:35:45,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:35:45,098 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:35:45,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 04:35:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:45,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 2694 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:35:45,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:35:45,717 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-29 04:35:45,717 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:35:45,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535291389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:35:45,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:35:45,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2023-11-29 04:35:45,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366363053] [2023-11-29 04:35:45,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:35:45,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:35:45,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:35:45,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:35:45,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:35:45,720 INFO L87 Difference]: Start difference. First operand 562 states and 718 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:35:46,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:35:46,960 INFO L93 Difference]: Finished difference Result 1108 states and 1435 transitions. [2023-11-29 04:35:46,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:35:46,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 127 [2023-11-29 04:35:46,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:35:46,964 INFO L225 Difference]: With dead ends: 1108 [2023-11-29 04:35:46,964 INFO L226 Difference]: Without dead ends: 583 [2023-11-29 04:35:46,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 151 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:35:46,967 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 36 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:35:46,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 425 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 04:35:46,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-11-29 04:35:47,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 560. [2023-11-29 04:35:47,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 432 states have (on average 1.1944444444444444) internal successors, (516), 449 states have internal predecessors, (516), 68 states have call successors, (68), 42 states have call predecessors, (68), 59 states have return successors, (120), 68 states have call predecessors, (120), 67 states have call successors, (120) [2023-11-29 04:35:47,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 704 transitions. [2023-11-29 04:35:47,007 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 704 transitions. Word has length 127 [2023-11-29 04:35:47,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:35:47,008 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 704 transitions. [2023-11-29 04:35:47,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:35:47,008 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 704 transitions. [2023-11-29 04:35:47,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 04:35:47,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:35:47,011 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:35:47,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 04:35:47,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 04:35:47,212 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:35:47,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:35:47,212 INFO L85 PathProgramCache]: Analyzing trace with hash -44632670, now seen corresponding path program 2 times [2023-11-29 04:35:47,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:35:47,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458502765] [2023-11-29 04:35:47,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:35:47,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:35:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:47,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:47,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:35:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:47,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:35:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:47,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:47,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:35:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:47,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:35:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:47,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 04:35:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:47,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:35:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:47,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 04:35:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:47,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 04:35:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:48,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 04:35:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:48,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:48,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:48,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 04:35:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:48,056 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2023-11-29 04:35:48,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:35:48,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458502765] [2023-11-29 04:35:48,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458502765] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:35:48,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141735027] [2023-11-29 04:35:48,057 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:35:48,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:35:48,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:35:48,058 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:35:48,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 04:35:48,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:35:48,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:35:48,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 2673 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 04:35:48,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:35:48,708 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 04:35:48,708 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:35:48,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141735027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:35:48,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:35:48,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 12 [2023-11-29 04:35:48,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940623312] [2023-11-29 04:35:48,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:35:48,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:35:48,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:35:48,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:35:48,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:35:48,711 INFO L87 Difference]: Start difference. First operand 560 states and 704 transitions. Second operand has 9 states, 7 states have (on average 9.571428571428571) internal successors, (67), 8 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 04:35:50,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:35:50,322 INFO L93 Difference]: Finished difference Result 1000 states and 1249 transitions. [2023-11-29 04:35:50,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:35:50,323 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 9.571428571428571) internal successors, (67), 8 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 127 [2023-11-29 04:35:50,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:35:50,327 INFO L225 Difference]: With dead ends: 1000 [2023-11-29 04:35:50,328 INFO L226 Difference]: Without dead ends: 585 [2023-11-29 04:35:50,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:35:50,330 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 13 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:35:50,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 837 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 04:35:50,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2023-11-29 04:35:50,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 548. [2023-11-29 04:35:50,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 423 states have (on average 1.1843971631205674) internal successors, (501), 437 states have internal predecessors, (501), 68 states have call successors, (68), 42 states have call predecessors, (68), 56 states have return successors, (116), 68 states have call predecessors, (116), 67 states have call successors, (116) [2023-11-29 04:35:50,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 685 transitions. [2023-11-29 04:35:50,372 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 685 transitions. Word has length 127 [2023-11-29 04:35:50,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:35:50,373 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 685 transitions. [2023-11-29 04:35:50,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 9.571428571428571) internal successors, (67), 8 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 04:35:50,373 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 685 transitions. [2023-11-29 04:35:50,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-29 04:35:50,375 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:35:50,375 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:35:50,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 04:35:50,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 04:35:50,576 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:35:50,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:35:50,576 INFO L85 PathProgramCache]: Analyzing trace with hash -484609347, now seen corresponding path program 1 times [2023-11-29 04:35:50,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:35:50,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124216449] [2023-11-29 04:35:50,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:35:50,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:35:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:50,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:50,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:35:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:50,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:35:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:50,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:50,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:35:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:50,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:35:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:50,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 04:35:50,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:50,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:35:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:50,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 04:35:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:50,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 04:35:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:50,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 04:35:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:50,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:50,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:50,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 04:35:50,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:50,860 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-29 04:35:50,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:35:50,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124216449] [2023-11-29 04:35:50,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124216449] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:35:50,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158266787] [2023-11-29 04:35:50,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:35:50,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:35:50,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:35:50,861 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:35:50,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 04:35:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:51,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 2684 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:35:51,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:35:51,288 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 04:35:51,288 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:35:51,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158266787] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:35:51,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:35:51,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2023-11-29 04:35:51,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187964478] [2023-11-29 04:35:51,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:35:51,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:35:51,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:35:51,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:35:51,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:35:51,290 INFO L87 Difference]: Start difference. First operand 548 states and 685 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:35:51,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:35:51,727 INFO L93 Difference]: Finished difference Result 887 states and 1091 transitions. [2023-11-29 04:35:51,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:35:51,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 129 [2023-11-29 04:35:51,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:35:51,730 INFO L225 Difference]: With dead ends: 887 [2023-11-29 04:35:51,730 INFO L226 Difference]: Without dead ends: 352 [2023-11-29 04:35:51,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:35:51,731 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 6 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:35:51,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 351 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:35:51,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-11-29 04:35:51,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 329. [2023-11-29 04:35:51,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 253 states have (on average 1.134387351778656) internal successors, (287), 258 states have internal predecessors, (287), 42 states have call successors, (42), 28 states have call predecessors, (42), 33 states have return successors, (59), 42 states have call predecessors, (59), 41 states have call successors, (59) [2023-11-29 04:35:51,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 388 transitions. [2023-11-29 04:35:51,759 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 388 transitions. Word has length 129 [2023-11-29 04:35:51,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:35:51,760 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 388 transitions. [2023-11-29 04:35:51,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:35:51,760 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 388 transitions. [2023-11-29 04:35:51,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 04:35:51,762 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:35:51,762 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:35:51,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 04:35:51,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:35:51,963 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:35:51,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:35:51,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1065827619, now seen corresponding path program 1 times [2023-11-29 04:35:51,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:35:51,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294513885] [2023-11-29 04:35:51,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:35:51,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:35:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:52,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:52,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:35:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:52,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:35:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:52,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:52,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:35:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:52,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:35:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:52,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 04:35:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:52,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 04:35:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:52,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:35:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:52,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:52,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:35:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:52,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:35:52,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:52,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 04:35:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:52,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 04:35:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:52,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 04:35:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:52,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 04:35:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:52,441 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2023-11-29 04:35:52,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:35:52,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294513885] [2023-11-29 04:35:52,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294513885] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:35:52,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301436929] [2023-11-29 04:35:52,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:35:52,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:35:52,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:35:52,443 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:35:52,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 04:35:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:52,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 2703 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:35:52,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:35:52,980 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-29 04:35:52,980 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:35:52,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301436929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:35:52,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:35:52,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-11-29 04:35:52,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540994588] [2023-11-29 04:35:52,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:35:52,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:35:52,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:35:52,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:35:52,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:35:52,982 INFO L87 Difference]: Start difference. First operand 329 states and 388 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 04:35:53,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:35:53,556 INFO L93 Difference]: Finished difference Result 404 states and 476 transitions. [2023-11-29 04:35:53,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:35:53,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) Word has length 131 [2023-11-29 04:35:53,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:35:53,558 INFO L225 Difference]: With dead ends: 404 [2023-11-29 04:35:53,558 INFO L226 Difference]: Without dead ends: 327 [2023-11-29 04:35:53,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:35:53,559 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 48 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:35:53,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 484 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:35:53,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-11-29 04:35:53,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2023-11-29 04:35:53,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 252 states have (on average 1.119047619047619) internal successors, (282), 256 states have internal predecessors, (282), 42 states have call successors, (42), 28 states have call predecessors, (42), 32 states have return successors, (58), 42 states have call predecessors, (58), 41 states have call successors, (58) [2023-11-29 04:35:53,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 382 transitions. [2023-11-29 04:35:53,585 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 382 transitions. Word has length 131 [2023-11-29 04:35:53,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:35:53,585 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 382 transitions. [2023-11-29 04:35:53,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 04:35:53,585 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 382 transitions. [2023-11-29 04:35:53,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-29 04:35:53,587 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:35:53,588 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:35:53,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 04:35:53,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2023-11-29 04:35:53,789 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:35:53,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:35:53,789 INFO L85 PathProgramCache]: Analyzing trace with hash -10258952, now seen corresponding path program 1 times [2023-11-29 04:35:53,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:35:53,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731691661] [2023-11-29 04:35:53,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:35:53,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:35:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:54,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:54,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:35:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:54,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:35:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:54,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:54,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:35:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:54,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:35:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:54,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 04:35:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:54,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 04:35:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:54,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:35:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:54,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:54,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:35:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:54,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:35:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:54,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 04:35:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:54,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 04:35:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:54,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 04:35:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:54,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-29 04:35:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:54,387 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 04:35:54,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:35:54,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731691661] [2023-11-29 04:35:54,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731691661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:35:54,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:35:54,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 04:35:54,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747761370] [2023-11-29 04:35:54,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:35:54,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:35:54,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:35:54,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:35:54,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:35:54,389 INFO L87 Difference]: Start difference. First operand 327 states and 382 transitions. Second operand has 10 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-29 04:35:56,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:35:56,176 INFO L93 Difference]: Finished difference Result 348 states and 404 transitions. [2023-11-29 04:35:56,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:35:56,176 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2023-11-29 04:35:56,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:35:56,178 INFO L225 Difference]: With dead ends: 348 [2023-11-29 04:35:56,178 INFO L226 Difference]: Without dead ends: 346 [2023-11-29 04:35:56,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:35:56,179 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 136 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:35:56,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 282 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 04:35:56,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2023-11-29 04:35:56,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 332. [2023-11-29 04:35:56,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 255 states have (on average 1.1176470588235294) internal successors, (285), 259 states have internal predecessors, (285), 43 states have call successors, (43), 29 states have call predecessors, (43), 33 states have return successors, (59), 43 states have call predecessors, (59), 42 states have call successors, (59) [2023-11-29 04:35:56,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 387 transitions. [2023-11-29 04:35:56,210 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 387 transitions. Word has length 137 [2023-11-29 04:35:56,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:35:56,210 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 387 transitions. [2023-11-29 04:35:56,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-29 04:35:56,211 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 387 transitions. [2023-11-29 04:35:56,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-29 04:35:56,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:35:56,212 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:35:56,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 04:35:56,213 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:35:56,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:35:56,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1073683325, now seen corresponding path program 1 times [2023-11-29 04:35:56,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:35:56,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617113250] [2023-11-29 04:35:56,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:35:56,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:35:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:56,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:56,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:35:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:56,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:35:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:56,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:56,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:35:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:56,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:35:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:56,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 04:35:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:56,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:35:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:57,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 04:35:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:57,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:35:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:57,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:35:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:57,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:35:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:57,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 04:35:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:57,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 04:35:57,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:57,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-29 04:35:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:57,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-29 04:35:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:35:57,164 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-11-29 04:35:57,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:35:57,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617113250] [2023-11-29 04:35:57,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617113250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:35:57,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:35:57,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 04:35:57,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872203000] [2023-11-29 04:35:57,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:35:57,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:35:57,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:35:57,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:35:57,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:35:57,166 INFO L87 Difference]: Start difference. First operand 332 states and 387 transitions. Second operand has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 04:35:59,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:35:59,045 INFO L93 Difference]: Finished difference Result 375 states and 436 transitions. [2023-11-29 04:35:59,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:35:59,046 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 147 [2023-11-29 04:35:59,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:35:59,048 INFO L225 Difference]: With dead ends: 375 [2023-11-29 04:35:59,049 INFO L226 Difference]: Without dead ends: 360 [2023-11-29 04:35:59,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:35:59,050 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 155 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:35:59,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 196 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 04:35:59,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-11-29 04:35:59,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 336. [2023-11-29 04:35:59,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 258 states have (on average 1.1162790697674418) internal successors, (288), 263 states have internal predecessors, (288), 43 states have call successors, (43), 29 states have call predecessors, (43), 34 states have return successors, (61), 43 states have call predecessors, (61), 42 states have call successors, (61) [2023-11-29 04:35:59,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 392 transitions. [2023-11-29 04:35:59,096 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 392 transitions. Word has length 147 [2023-11-29 04:35:59,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:35:59,097 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 392 transitions. [2023-11-29 04:35:59,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 04:35:59,097 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 392 transitions. [2023-11-29 04:35:59,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-29 04:35:59,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:35:59,099 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:35:59,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 04:35:59,100 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:35:59,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:35:59,100 INFO L85 PathProgramCache]: Analyzing trace with hash -488033789, now seen corresponding path program 1 times [2023-11-29 04:35:59,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:35:59,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260458831] [2023-11-29 04:35:59,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:35:59,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:35:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:01,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:01,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:36:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:01,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:36:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:01,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:01,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:36:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:01,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:36:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:01,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 04:36:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:01,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:36:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:01,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 04:36:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:01,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:01,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:36:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:01,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:36:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:01,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 04:36:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:01,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 04:36:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:01,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-29 04:36:01,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:01,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-29 04:36:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:01,882 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-11-29 04:36:01,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:36:01,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260458831] [2023-11-29 04:36:01,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260458831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:36:01,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:36:01,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 04:36:01,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378944126] [2023-11-29 04:36:01,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:36:01,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:36:01,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:36:01,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:36:01,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:36:01,885 INFO L87 Difference]: Start difference. First operand 336 states and 392 transitions. Second operand has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 10 states have internal predecessors, (60), 6 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 04:36:04,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:36:04,903 INFO L93 Difference]: Finished difference Result 391 states and 452 transitions. [2023-11-29 04:36:04,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:36:04,903 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 10 states have internal predecessors, (60), 6 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 147 [2023-11-29 04:36:04,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:36:04,905 INFO L225 Difference]: With dead ends: 391 [2023-11-29 04:36:04,905 INFO L226 Difference]: Without dead ends: 376 [2023-11-29 04:36:04,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:36:04,905 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 167 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:36:04,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 221 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 04:36:04,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2023-11-29 04:36:04,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 343. [2023-11-29 04:36:04,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 264 states have (on average 1.1136363636363635) internal successors, (294), 270 states have internal predecessors, (294), 43 states have call successors, (43), 29 states have call predecessors, (43), 35 states have return successors, (62), 43 states have call predecessors, (62), 42 states have call successors, (62) [2023-11-29 04:36:04,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 399 transitions. [2023-11-29 04:36:04,927 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 399 transitions. Word has length 147 [2023-11-29 04:36:04,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:36:04,928 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 399 transitions. [2023-11-29 04:36:04,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 10 states have internal predecessors, (60), 6 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 04:36:04,928 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 399 transitions. [2023-11-29 04:36:04,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-29 04:36:04,930 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:36:04,930 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:36:04,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 04:36:04,930 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:36:04,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:36:04,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1499151039, now seen corresponding path program 2 times [2023-11-29 04:36:04,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:36:04,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494659908] [2023-11-29 04:36:04,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:36:04,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:36:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:05,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:05,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:36:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:05,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:36:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:05,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:05,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:36:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:05,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:36:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:05,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 04:36:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:05,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:36:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:05,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 04:36:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:05,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:05,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:36:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:05,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:36:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:05,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 04:36:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:05,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 04:36:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:05,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-29 04:36:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:05,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-29 04:36:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:05,961 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-11-29 04:36:05,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:36:05,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494659908] [2023-11-29 04:36:05,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494659908] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:36:05,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:36:05,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:36:05,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469111944] [2023-11-29 04:36:05,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:36:05,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:36:05,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:36:05,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:36:05,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:36:05,963 INFO L87 Difference]: Start difference. First operand 343 states and 399 transitions. Second operand has 11 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 4 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 04:36:08,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:36:08,643 INFO L93 Difference]: Finished difference Result 395 states and 455 transitions. [2023-11-29 04:36:08,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:36:08,643 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 4 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 147 [2023-11-29 04:36:08,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:36:08,645 INFO L225 Difference]: With dead ends: 395 [2023-11-29 04:36:08,645 INFO L226 Difference]: Without dead ends: 380 [2023-11-29 04:36:08,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:36:08,646 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 159 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:36:08,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 220 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 04:36:08,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-11-29 04:36:08,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 336. [2023-11-29 04:36:08,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 258 states have (on average 1.1162790697674418) internal successors, (288), 263 states have internal predecessors, (288), 43 states have call successors, (43), 29 states have call predecessors, (43), 34 states have return successors, (60), 43 states have call predecessors, (60), 42 states have call successors, (60) [2023-11-29 04:36:08,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 391 transitions. [2023-11-29 04:36:08,683 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 391 transitions. Word has length 147 [2023-11-29 04:36:08,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:36:08,684 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 391 transitions. [2023-11-29 04:36:08,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 4 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 04:36:08,684 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 391 transitions. [2023-11-29 04:36:08,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 04:36:08,687 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:36:08,687 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:36:08,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 04:36:08,687 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:36:08,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:36:08,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1844111362, now seen corresponding path program 1 times [2023-11-29 04:36:08,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:36:08,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392296290] [2023-11-29 04:36:08,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:36:08,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:36:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:11,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:11,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:36:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:11,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:36:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:11,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:11,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:36:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:11,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:36:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:11,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 04:36:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:11,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:36:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:11,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 04:36:11,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:11,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:11,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:11,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:36:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:11,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:36:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:11,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 04:36:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:11,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 04:36:11,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:11,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-29 04:36:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:11,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-29 04:36:11,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:11,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-29 04:36:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:11,635 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 04:36:11,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:36:11,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392296290] [2023-11-29 04:36:11,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392296290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:36:11,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:36:11,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 04:36:11,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80906292] [2023-11-29 04:36:11,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:36:11,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:36:11,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:36:11,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:36:11,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:36:11,637 INFO L87 Difference]: Start difference. First operand 336 states and 391 transitions. Second operand has 13 states, 12 states have (on average 4.0) internal successors, (48), 10 states have internal predecessors, (48), 6 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 04:36:14,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:36:14,719 INFO L93 Difference]: Finished difference Result 354 states and 410 transitions. [2023-11-29 04:36:14,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:36:14,719 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.0) internal successors, (48), 10 states have internal predecessors, (48), 6 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 149 [2023-11-29 04:36:14,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:36:14,721 INFO L225 Difference]: With dead ends: 354 [2023-11-29 04:36:14,721 INFO L226 Difference]: Without dead ends: 352 [2023-11-29 04:36:14,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:36:14,722 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 145 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:36:14,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 237 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 04:36:14,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-11-29 04:36:14,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 340. [2023-11-29 04:36:14,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 261 states have (on average 1.1149425287356323) internal successors, (291), 266 states have internal predecessors, (291), 43 states have call successors, (43), 30 states have call predecessors, (43), 35 states have return successors, (60), 43 states have call predecessors, (60), 42 states have call successors, (60) [2023-11-29 04:36:14,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 394 transitions. [2023-11-29 04:36:14,749 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 394 transitions. Word has length 149 [2023-11-29 04:36:14,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:36:14,750 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 394 transitions. [2023-11-29 04:36:14,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.0) internal successors, (48), 10 states have internal predecessors, (48), 6 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 04:36:14,750 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 394 transitions. [2023-11-29 04:36:14,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-29 04:36:14,753 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:36:14,753 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:36:14,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 04:36:14,753 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:36:14,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:36:14,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1757022009, now seen corresponding path program 2 times [2023-11-29 04:36:14,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:36:14,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516818470] [2023-11-29 04:36:14,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:36:14,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:36:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:15,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:15,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:36:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:15,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:36:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:15,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:15,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:36:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:15,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:36:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:15,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 04:36:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:15,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 04:36:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:15,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:36:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:15,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:15,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:36:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:15,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:36:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:15,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 04:36:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:15,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 04:36:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:15,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 04:36:15,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:15,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-29 04:36:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:15,796 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-11-29 04:36:15,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:36:15,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516818470] [2023-11-29 04:36:15,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516818470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:36:15,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:36:15,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 04:36:15,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897386212] [2023-11-29 04:36:15,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:36:15,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:36:15,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:36:15,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:36:15,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:36:15,798 INFO L87 Difference]: Start difference. First operand 340 states and 394 transitions. Second operand has 12 states, 10 states have (on average 5.2) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-29 04:36:19,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:36:19,019 INFO L93 Difference]: Finished difference Result 376 states and 435 transitions. [2023-11-29 04:36:19,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:36:19,020 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.2) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 143 [2023-11-29 04:36:19,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:36:19,022 INFO L225 Difference]: With dead ends: 376 [2023-11-29 04:36:19,023 INFO L226 Difference]: Without dead ends: 374 [2023-11-29 04:36:19,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2023-11-29 04:36:19,024 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 154 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:36:19,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 352 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 04:36:19,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2023-11-29 04:36:19,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 345. [2023-11-29 04:36:19,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 265 states have (on average 1.1132075471698113) internal successors, (295), 271 states have internal predecessors, (295), 43 states have call successors, (43), 30 states have call predecessors, (43), 36 states have return successors, (63), 43 states have call predecessors, (63), 42 states have call successors, (63) [2023-11-29 04:36:19,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 401 transitions. [2023-11-29 04:36:19,066 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 401 transitions. Word has length 143 [2023-11-29 04:36:19,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:36:19,067 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 401 transitions. [2023-11-29 04:36:19,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.2) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-29 04:36:19,067 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 401 transitions. [2023-11-29 04:36:19,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 04:36:19,069 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:36:19,070 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:36:19,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 04:36:19,070 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:36:19,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:36:19,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1785278742, now seen corresponding path program 1 times [2023-11-29 04:36:19,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:36:19,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246364545] [2023-11-29 04:36:19,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:36:19,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:36:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:20,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:20,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:36:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:20,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:36:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:20,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:20,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:36:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:20,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:36:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:20,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 04:36:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:20,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:36:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:20,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 04:36:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:20,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:20,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:36:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:20,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:36:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:20,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 04:36:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:20,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 04:36:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:20,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-29 04:36:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:20,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-29 04:36:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:20,351 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-11-29 04:36:20,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:36:20,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246364545] [2023-11-29 04:36:20,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246364545] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:36:20,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:36:20,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 04:36:20,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084347421] [2023-11-29 04:36:20,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:36:20,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:36:20,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:36:20,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:36:20,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:36:20,354 INFO L87 Difference]: Start difference. First operand 345 states and 401 transitions. Second operand has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 04:36:23,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:36:23,149 INFO L93 Difference]: Finished difference Result 391 states and 451 transitions. [2023-11-29 04:36:23,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:36:23,150 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 149 [2023-11-29 04:36:23,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:36:23,153 INFO L225 Difference]: With dead ends: 391 [2023-11-29 04:36:23,153 INFO L226 Difference]: Without dead ends: 372 [2023-11-29 04:36:23,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:36:23,155 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 144 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:36:23,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 220 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 04:36:23,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-11-29 04:36:23,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 340. [2023-11-29 04:36:23,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 262 states have (on average 1.1145038167938932) internal successors, (292), 267 states have internal predecessors, (292), 42 states have call successors, (42), 30 states have call predecessors, (42), 35 states have return successors, (59), 42 states have call predecessors, (59), 41 states have call successors, (59) [2023-11-29 04:36:23,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 393 transitions. [2023-11-29 04:36:23,196 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 393 transitions. Word has length 149 [2023-11-29 04:36:23,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:36:23,196 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 393 transitions. [2023-11-29 04:36:23,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 04:36:23,197 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 393 transitions. [2023-11-29 04:36:23,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 04:36:23,199 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:36:23,199 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:36:23,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 04:36:23,200 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:36:23,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:36:23,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1389878828, now seen corresponding path program 1 times [2023-11-29 04:36:23,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:36:23,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508493132] [2023-11-29 04:36:23,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:36:23,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:36:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:36:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:36:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:36:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:36:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 04:36:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 04:36:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:36:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:36:25,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:36:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 04:36:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 04:36:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 04:36:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-29 04:36:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-29 04:36:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-29 04:36:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:25,510 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2023-11-29 04:36:25,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:36:25,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508493132] [2023-11-29 04:36:25,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508493132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:36:25,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:36:25,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-29 04:36:25,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520918889] [2023-11-29 04:36:25,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:36:25,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:36:25,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:36:25,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:36:25,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:36:25,512 INFO L87 Difference]: Start difference. First operand 340 states and 393 transitions. Second operand has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 04:36:29,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:36:29,058 INFO L93 Difference]: Finished difference Result 368 states and 425 transitions. [2023-11-29 04:36:29,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 04:36:29,058 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 149 [2023-11-29 04:36:29,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:36:29,060 INFO L225 Difference]: With dead ends: 368 [2023-11-29 04:36:29,060 INFO L226 Difference]: Without dead ends: 366 [2023-11-29 04:36:29,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:36:29,061 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 173 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:36:29,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 248 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 04:36:29,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-11-29 04:36:29,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 349. [2023-11-29 04:36:29,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 267 states have (on average 1.1123595505617978) internal successors, (297), 272 states have internal predecessors, (297), 45 states have call successors, (45), 31 states have call predecessors, (45), 36 states have return successors, (62), 45 states have call predecessors, (62), 44 states have call successors, (62) [2023-11-29 04:36:29,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 404 transitions. [2023-11-29 04:36:29,087 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 404 transitions. Word has length 149 [2023-11-29 04:36:29,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:36:29,088 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 404 transitions. [2023-11-29 04:36:29,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 04:36:29,088 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 404 transitions. [2023-11-29 04:36:29,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 04:36:29,090 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:36:29,091 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:36:29,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 04:36:29,091 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:36:29,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:36:29,091 INFO L85 PathProgramCache]: Analyzing trace with hash 268158069, now seen corresponding path program 1 times [2023-11-29 04:36:29,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:36:29,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395039389] [2023-11-29 04:36:29,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:36:29,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:36:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:36:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:36:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:36:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:36:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 04:36:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 04:36:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:36:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:36:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:36:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 04:36:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 04:36:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 04:36:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-29 04:36:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-29 04:36:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-29 04:36:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-29 04:36:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:30,654 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-29 04:36:30,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:36:30,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395039389] [2023-11-29 04:36:30,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395039389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:36:30,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:36:30,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:36:30,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890393751] [2023-11-29 04:36:30,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:36:30,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:36:30,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:36:30,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:36:30,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:36:30,656 INFO L87 Difference]: Start difference. First operand 349 states and 404 transitions. Second operand has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 6 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2023-11-29 04:36:33,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:36:33,128 INFO L93 Difference]: Finished difference Result 365 states and 420 transitions. [2023-11-29 04:36:33,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:36:33,129 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 6 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) Word has length 155 [2023-11-29 04:36:33,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:36:33,130 INFO L225 Difference]: With dead ends: 365 [2023-11-29 04:36:33,130 INFO L226 Difference]: Without dead ends: 363 [2023-11-29 04:36:33,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:36:33,131 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 126 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:36:33,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 180 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 04:36:33,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-29 04:36:33,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 353. [2023-11-29 04:36:33,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 270 states have (on average 1.1111111111111112) internal successors, (300), 275 states have internal predecessors, (300), 45 states have call successors, (45), 32 states have call predecessors, (45), 37 states have return successors, (62), 45 states have call predecessors, (62), 44 states have call successors, (62) [2023-11-29 04:36:33,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 407 transitions. [2023-11-29 04:36:33,163 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 407 transitions. Word has length 155 [2023-11-29 04:36:33,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:36:33,163 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 407 transitions. [2023-11-29 04:36:33,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 6 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2023-11-29 04:36:33,163 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 407 transitions. [2023-11-29 04:36:33,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 04:36:33,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:36:33,165 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:36:33,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 04:36:33,166 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:36:33,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:36:33,166 INFO L85 PathProgramCache]: Analyzing trace with hash -414587357, now seen corresponding path program 2 times [2023-11-29 04:36:33,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:36:33,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270013248] [2023-11-29 04:36:33,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:36:33,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:36:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:36:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:36:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:36:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:36:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 04:36:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 04:36:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:36:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:36:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:36:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 04:36:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 04:36:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 04:36:34,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-29 04:36:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-29 04:36:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-29 04:36:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:34,476 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2023-11-29 04:36:34,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:36:34,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270013248] [2023-11-29 04:36:34,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270013248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:36:34,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:36:34,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 04:36:34,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35934854] [2023-11-29 04:36:34,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:36:34,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:36:34,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:36:34,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:36:34,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:36:34,478 INFO L87 Difference]: Start difference. First operand 353 states and 407 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 10 states have internal predecessors, (64), 6 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 04:36:36,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:36:36,408 INFO L93 Difference]: Finished difference Result 393 states and 445 transitions. [2023-11-29 04:36:36,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:36:36,409 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 10 states have internal predecessors, (64), 6 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) Word has length 155 [2023-11-29 04:36:36,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:36:36,411 INFO L225 Difference]: With dead ends: 393 [2023-11-29 04:36:36,411 INFO L226 Difference]: Without dead ends: 364 [2023-11-29 04:36:36,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:36:36,412 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 176 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:36:36,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 145 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 04:36:36,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-11-29 04:36:36,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 341. [2023-11-29 04:36:36,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 263 states have (on average 1.1102661596958174) internal successors, (292), 266 states have internal predecessors, (292), 42 states have call successors, (42), 32 states have call predecessors, (42), 35 states have return successors, (56), 42 states have call predecessors, (56), 41 states have call successors, (56) [2023-11-29 04:36:36,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 390 transitions. [2023-11-29 04:36:36,440 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 390 transitions. Word has length 155 [2023-11-29 04:36:36,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:36:36,441 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 390 transitions. [2023-11-29 04:36:36,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 10 states have internal predecessors, (64), 6 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 04:36:36,441 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 390 transitions. [2023-11-29 04:36:36,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-29 04:36:36,443 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:36:36,444 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:36:36,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 04:36:36,444 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:36:36,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:36:36,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1033899180, now seen corresponding path program 1 times [2023-11-29 04:36:36,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:36:36,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223696350] [2023-11-29 04:36:36,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:36:36,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:36:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:36:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:36:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 04:36:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 04:36:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 04:36:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 04:36:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:36:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:36:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 04:36:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:36:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 04:36:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 04:36:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 04:36:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-29 04:36:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-29 04:36:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-29 04:36:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-29 04:36:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-29 04:36:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:37,489 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-29 04:36:37,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:36:37,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223696350] [2023-11-29 04:36:37,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223696350] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:36:37,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:36:37,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 04:36:37,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452567856] [2023-11-29 04:36:37,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:36:37,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:36:37,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:36:37,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:36:37,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:36:37,491 INFO L87 Difference]: Start difference. First operand 341 states and 390 transitions. Second operand has 10 states, 9 states have (on average 5.666666666666667) internal successors, (51), 7 states have internal predecessors, (51), 5 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-29 04:36:39,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:36:39,098 INFO L93 Difference]: Finished difference Result 351 states and 401 transitions. [2023-11-29 04:36:39,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:36:39,099 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.666666666666667) internal successors, (51), 7 states have internal predecessors, (51), 5 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 161 [2023-11-29 04:36:39,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:36:39,099 INFO L225 Difference]: With dead ends: 351 [2023-11-29 04:36:39,099 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 04:36:39,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:36:39,101 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 122 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:36:39,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 202 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 04:36:39,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 04:36:39,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 04:36:39,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:36:39,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 04:36:39,102 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2023-11-29 04:36:39,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:36:39,102 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 04:36:39,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.666666666666667) internal successors, (51), 7 states have internal predecessors, (51), 5 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-29 04:36:39,102 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 04:36:39,103 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 04:36:39,105 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 04:36:39,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 04:36:39,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 04:37:09,862 WARN L293 SmtUtils]: Spent 28.12s on a formula simplification. DAG size of input: 60 DAG size of output: 33 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-11-29 04:37:26,018 WARN L293 SmtUtils]: Spent 16.16s on a formula simplification. DAG size of input: 59 DAG size of output: 43 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-11-29 04:37:54,122 WARN L293 SmtUtils]: Spent 28.10s on a formula simplification. DAG size of input: 59 DAG size of output: 42 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-11-29 04:38:26,650 WARN L293 SmtUtils]: Spent 28.09s on a formula simplification. DAG size of input: 60 DAG size of output: 33 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-11-29 04:38:35,828 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification. DAG size of input: 104 DAG size of output: 92 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-11-29 04:39:04,283 WARN L293 SmtUtils]: Spent 24.10s on a formula simplification. DAG size of input: 60 DAG size of output: 33 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-11-29 04:39:33,142 WARN L293 SmtUtils]: Spent 28.10s on a formula simplification. DAG size of input: 59 DAG size of output: 42 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-11-29 04:39:33,461 INFO L899 garLoopResultBuilder]: For program point L6877-1(lines 6877 6879) no Hoare annotation was computed. [2023-11-29 04:39:33,461 INFO L895 garLoopResultBuilder]: At program point L6877(lines 6877 6879) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2023-11-29 04:39:33,461 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 6876 6881) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2023-11-29 04:39:33,461 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6876 6881) no Hoare annotation was computed. [2023-11-29 04:39:33,462 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 7123 7125) the Hoare annotation is: (or (and (= |old(#memory_$Pointer$#1.base)| |#memory_$Pointer$#1.base|) (= |#memory_int#1| |old(#memory_int#1)|) (= |#memory_real#1| |old(#memory_real#1)|) (= |old(#memory_$Pointer$#1.offset)| |#memory_$Pointer$#1.offset|)) (forall ((|v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17| Int)) (= (select (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17|) 8) 0)) (forall ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (= (mod (select (select |#memory_int#4| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0))) [2023-11-29 04:39:33,462 INFO L899 garLoopResultBuilder]: For program point my_memsetEXIT(lines 7123 7125) no Hoare annotation was computed. [2023-11-29 04:39:33,462 INFO L899 garLoopResultBuilder]: For program point L7124-1(line 7124) no Hoare annotation was computed. [2023-11-29 04:39:33,462 INFO L895 garLoopResultBuilder]: At program point L7124(line 7124) the Hoare annotation is: (or (and (= my_memset_~n |my_memset_#in~n|) (= |old(#memory_$Pointer$#1.base)| |#memory_$Pointer$#1.base|) (= |#memory_int#1| |old(#memory_int#1)|) (= |#memory_real#1| |old(#memory_real#1)|) (= |old(#memory_$Pointer$#1.offset)| |#memory_$Pointer$#1.offset|)) (forall ((|v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17| Int)) (= (select (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17|) 8) 0)) (forall ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (= (mod (select (select |#memory_int#4| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0))) [2023-11-29 04:39:33,462 INFO L899 garLoopResultBuilder]: For program point L7181-3(line 7181) no Hoare annotation was computed. [2023-11-29 04:39:33,462 INFO L899 garLoopResultBuilder]: For program point L7181-1(line 7181) no Hoare annotation was computed. [2023-11-29 04:39:33,462 INFO L899 garLoopResultBuilder]: For program point L7181(lines 7181 7184) no Hoare annotation was computed. [2023-11-29 04:39:33,462 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7179 7185) the Hoare annotation is: true [2023-11-29 04:39:33,463 INFO L899 garLoopResultBuilder]: For program point L7181-7(lines 7181 7184) no Hoare annotation was computed. [2023-11-29 04:39:33,463 INFO L899 garLoopResultBuilder]: For program point L7181-6(lines 7181 7182) no Hoare annotation was computed. [2023-11-29 04:39:33,463 INFO L899 garLoopResultBuilder]: For program point L7181-4(lines 7181 7182) no Hoare annotation was computed. [2023-11-29 04:39:33,463 INFO L899 garLoopResultBuilder]: For program point L7181-11(lines 7181 7184) no Hoare annotation was computed. [2023-11-29 04:39:33,463 INFO L899 garLoopResultBuilder]: For program point L7181-9(lines 7181 7184) no Hoare annotation was computed. [2023-11-29 04:39:33,463 INFO L899 garLoopResultBuilder]: For program point aws_byte_buf_is_validEXIT(lines 7179 7185) no Hoare annotation was computed. [2023-11-29 04:39:33,463 INFO L899 garLoopResultBuilder]: For program point L7184-2(line 7184) no Hoare annotation was computed. [2023-11-29 04:39:33,463 INFO L899 garLoopResultBuilder]: For program point L7184(line 7184) no Hoare annotation was computed. [2023-11-29 04:39:33,463 INFO L899 garLoopResultBuilder]: For program point L7184-6(line 7184) no Hoare annotation was computed. [2023-11-29 04:39:33,463 INFO L899 garLoopResultBuilder]: For program point L7184-4(line 7184) no Hoare annotation was computed. [2023-11-29 04:39:33,463 INFO L899 garLoopResultBuilder]: For program point L7184-3(line 7184) no Hoare annotation was computed. [2023-11-29 04:39:33,463 INFO L899 garLoopResultBuilder]: For program point L7184-8(line 7184) no Hoare annotation was computed. [2023-11-29 04:39:33,464 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2023-11-29 04:39:33,464 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2023-11-29 04:39:33,464 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2023-11-29 04:39:33,464 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2023-11-29 04:39:33,464 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 222 224) the Hoare annotation is: true [2023-11-29 04:39:33,464 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2023-11-29 04:39:33,464 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2023-11-29 04:39:33,464 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 261) the Hoare annotation is: true [2023-11-29 04:39:33,464 INFO L899 garLoopResultBuilder]: For program point L7056-1(lines 7056 7058) no Hoare annotation was computed. [2023-11-29 04:39:33,465 INFO L895 garLoopResultBuilder]: At program point L7056(lines 7056 7058) the Hoare annotation is: (or (and (forall ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (= (mod (select (select |#memory_int#4| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0)) (forall ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_5| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_2| Int)) (let ((.cse0 (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_2| 8))) (or (not (= (select (select |#memory_$Pointer$#4.offset| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_5|) .cse0) 0)) (not (= (select (select |#memory_$Pointer$#4.base| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_5|) .cse0) 0)))))) (= |old(#valid)| |#valid|)) [2023-11-29 04:39:33,465 INFO L899 garLoopResultBuilder]: For program point aws_mem_releaseEXIT(lines 7055 7068) no Hoare annotation was computed. [2023-11-29 04:39:33,465 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 7055 7068) the Hoare annotation is: (or (and (forall ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (= (mod (select (select |#memory_int#4| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0)) (forall ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_5| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_2| Int)) (let ((.cse0 (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_2| 8))) (or (not (= (select (select |#memory_$Pointer$#4.offset| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_5|) .cse0) 0)) (not (= (select (select |#memory_$Pointer$#4.base| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_5|) .cse0) 0)))))) (= |old(#valid)| |#valid|)) [2023-11-29 04:39:33,465 INFO L899 garLoopResultBuilder]: For program point L7063(lines 7063 7067) no Hoare annotation was computed. [2023-11-29 04:39:33,465 INFO L899 garLoopResultBuilder]: For program point L7059-1(lines 7059 7061) no Hoare annotation was computed. [2023-11-29 04:39:33,465 INFO L895 garLoopResultBuilder]: At program point L7059(lines 7059 7061) the Hoare annotation is: (or (and (forall ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (= (mod (select (select |#memory_int#4| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0)) (forall ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_5| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_2| Int)) (let ((.cse0 (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_2| 8))) (or (not (= (select (select |#memory_$Pointer$#4.offset| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_5|) .cse0) 0)) (not (= (select (select |#memory_$Pointer$#4.base| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_5|) .cse0) 0)))))) (= |old(#valid)| |#valid|)) [2023-11-29 04:39:33,466 INFO L899 garLoopResultBuilder]: For program point L7063-2(lines 7055 7068) no Hoare annotation was computed. [2023-11-29 04:39:33,466 INFO L899 garLoopResultBuilder]: For program point memset_implEXIT(lines 7113 7121) no Hoare annotation was computed. [2023-11-29 04:39:33,466 INFO L895 garLoopResultBuilder]: At program point L7114(line 7114) the Hoare annotation is: (or (forall ((|v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17| Int)) (= (select (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17|) 8) 0)) (forall ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (= (mod (select (select |#memory_int#4| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0)) (and (= |old(#memory_$Pointer$#1.base)| |#memory_$Pointer$#1.base|) (= |#memory_int#1| |old(#memory_int#1)|) (= |#memory_real#1| |old(#memory_real#1)|) (= |old(#memory_$Pointer$#1.offset)| |#memory_$Pointer$#1.offset|) (= |memset_impl_#in~n| memset_impl_~n))) [2023-11-29 04:39:33,466 INFO L895 garLoopResultBuilder]: At program point L7117-3(lines 7117 7118) the Hoare annotation is: (or (forall ((|v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17| Int)) (= (select (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17|) 8) 0)) (forall ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (= (mod (select (select |#memory_int#4| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0)) (= |memset_impl_#in~n| memset_impl_~n)) [2023-11-29 04:39:33,466 INFO L899 garLoopResultBuilder]: For program point L7115-1(lines 7115 7119) no Hoare annotation was computed. [2023-11-29 04:39:33,466 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 7113 7121) the Hoare annotation is: (or (and (= |old(#memory_$Pointer$#1.base)| |#memory_$Pointer$#1.base|) (= |#memory_int#1| |old(#memory_int#1)|) (= |#memory_real#1| |old(#memory_real#1)|) (= |old(#memory_$Pointer$#1.offset)| |#memory_$Pointer$#1.offset|)) (forall ((|v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17| Int)) (= (select (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17|) 8) 0)) (forall ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (= (mod (select (select |#memory_int#4| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0))) [2023-11-29 04:39:33,466 INFO L899 garLoopResultBuilder]: For program point L7114-1(lines 7113 7121) no Hoare annotation was computed. [2023-11-29 04:39:33,466 INFO L899 garLoopResultBuilder]: For program point L7117-4(lines 7117 7118) no Hoare annotation was computed. [2023-11-29 04:39:33,466 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2023-11-29 04:39:33,467 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 210 212) the Hoare annotation is: true [2023-11-29 04:39:33,467 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2023-11-29 04:39:33,467 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2023-11-29 04:39:33,467 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6883 6885) the Hoare annotation is: true [2023-11-29 04:39:33,467 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6883 6885) no Hoare annotation was computed. [2023-11-29 04:39:33,467 INFO L899 garLoopResultBuilder]: For program point aws_byte_buf_secure_zeroEXIT(lines 7218 7225) no Hoare annotation was computed. [2023-11-29 04:39:33,467 INFO L899 garLoopResultBuilder]: For program point L7224-2(line 7224) no Hoare annotation was computed. [2023-11-29 04:39:33,467 INFO L895 garLoopResultBuilder]: At program point L7224-1(line 7224) the Hoare annotation is: (let ((.cse7 (select |#memory_int#4| |aws_byte_buf_secure_zero_~buf#1.base|))) (let ((.cse4 (= (select .cse7 |aws_byte_buf_secure_zero_~buf#1.offset|) 0)) (.cse5 (<= 2 |aws_byte_buf_secure_zero_~buf#1.base|)) (.cse6 (= |aws_byte_buf_secure_zero_#t~ret653#1| 1))) (let ((.cse0 (forall ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (= (mod (select (select |old(#memory_int#4)| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0))) (.cse1 (forall ((|v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17| Int)) (= (select (select |old(#memory_$Pointer$#4.base)| |v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17|) 8) 0))) (.cse2 (< |aws_byte_buf_secure_zero_#in~buf#1.base| 2)) (.cse3 (let ((.cse8 (+ |aws_byte_buf_secure_zero_~buf#1.offset| 8))) (and (= (select (select |#memory_$Pointer$#4.base| |aws_byte_buf_secure_zero_~buf#1.base|) .cse8) 0) (= 0 (select (select |#memory_$Pointer$#4.offset| |aws_byte_buf_secure_zero_~buf#1.base|) .cse8)) .cse4 .cse5 (= |old(#memory_$Pointer$#1.base)| |#memory_$Pointer$#1.base|) (= |#memory_int#1| |old(#memory_int#1)|) (= |#memory_real#1| |old(#memory_real#1)|) (= |old(#memory_$Pointer$#1.offset)| |#memory_$Pointer$#1.offset|) .cse6 (<= 2 |aws_byte_buf_secure_zero_#in~buf#1.base|))))) (and (or .cse0 (not (= (select (select |old(#memory_$Pointer$#4.offset)| |aws_byte_buf_secure_zero_#in~buf#1.base|) 8) 0)) .cse1 (not (= |aws_byte_buf_secure_zero_#in~buf#1.offset| 0)) .cse2 .cse3 (not (= (select (select |old(#memory_$Pointer$#4.base)| |aws_byte_buf_secure_zero_#in~buf#1.base|) 8) 0))) (or .cse0 (and .cse4 .cse5 .cse6 (not (= (mod (select .cse7 (+ 16 |aws_byte_buf_secure_zero_~buf#1.offset|)) 18446744073709551616) 0))) .cse1 .cse2 .cse3))))) [2023-11-29 04:39:33,468 INFO L895 garLoopResultBuilder]: At program point L7224(line 7224) the Hoare annotation is: (let ((.cse6 (select |#memory_int#4| |aws_byte_buf_secure_zero_~buf#1.base|))) (let ((.cse4 (= (select .cse6 |aws_byte_buf_secure_zero_~buf#1.offset|) 0)) (.cse5 (<= 2 |aws_byte_buf_secure_zero_~buf#1.base|))) (let ((.cse0 (forall ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (= (mod (select (select |old(#memory_int#4)| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0))) (.cse1 (let ((.cse7 (+ |aws_byte_buf_secure_zero_~buf#1.offset| 8))) (and (= (select (select |#memory_$Pointer$#4.base| |aws_byte_buf_secure_zero_~buf#1.base|) .cse7) 0) (= 0 (select (select |#memory_$Pointer$#4.offset| |aws_byte_buf_secure_zero_~buf#1.base|) .cse7)) .cse4 .cse5 (= |old(#memory_$Pointer$#1.base)| |#memory_$Pointer$#1.base|) (= |#memory_int#1| |old(#memory_int#1)|) (= |#memory_real#1| |old(#memory_real#1)|) (= |old(#memory_$Pointer$#1.offset)| |#memory_$Pointer$#1.offset|)))) (.cse2 (forall ((|v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17| Int)) (= (select (select |old(#memory_$Pointer$#4.base)| |v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17|) 8) 0))) (.cse3 (< |aws_byte_buf_secure_zero_#in~buf#1.base| 2))) (and (or .cse0 .cse1 (not (= (select (select |old(#memory_$Pointer$#4.offset)| |aws_byte_buf_secure_zero_#in~buf#1.base|) 8) 0)) .cse2 (not (= |aws_byte_buf_secure_zero_#in~buf#1.offset| 0)) .cse3 (not (= (select (select |old(#memory_$Pointer$#4.base)| |aws_byte_buf_secure_zero_#in~buf#1.base|) 8) 0))) (or .cse0 .cse1 .cse2 (and .cse4 .cse5 (not (= (mod (select .cse6 (+ 16 |aws_byte_buf_secure_zero_~buf#1.offset|)) 18446744073709551616) 0))) .cse3))))) [2023-11-29 04:39:33,468 INFO L895 garLoopResultBuilder]: At program point L7219-1(line 7219) the Hoare annotation is: (let ((.cse16 (+ |aws_byte_buf_secure_zero_~buf#1.offset| 8))) (let ((.cse9 (forall ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (= (mod (select (select |old(#memory_int#4)| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0))) (.cse10 (forall ((|v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17| Int)) (= (select (select |old(#memory_$Pointer$#4.base)| |v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17|) 8) 0))) (.cse15 (< |aws_byte_buf_secure_zero_#in~buf#1.base| 2)) (.cse11 (= (select (select |#memory_$Pointer$#4.base| |aws_byte_buf_secure_zero_~buf#1.base|) .cse16) 0)) (.cse12 (exists ((|v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17| Int)) (not (= (select (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17|) 8) 0)))) (.cse13 (= 0 (select (select |#memory_$Pointer$#4.offset| |aws_byte_buf_secure_zero_~buf#1.base|) .cse16))) (.cse3 (<= 2 |aws_byte_buf_secure_zero_~buf#1.base|)) (.cse14 (<= 2 |aws_byte_buf_secure_zero_#in~buf#1.base|))) (and (let ((.cse0 (= |#memory_real#4| |old(#memory_real#4)|)) (.cse1 (= |#memory_int#4| |old(#memory_int#4)|)) (.cse2 (= |old(#memory_$Pointer$#4.base)| |#memory_$Pointer$#4.base|)) (.cse8 (= |#memory_$Pointer$#4.offset| |old(#memory_$Pointer$#4.offset)|)) (.cse4 (= |old(#memory_$Pointer$#1.base)| |#memory_$Pointer$#1.base|)) (.cse5 (= |#memory_int#1| |old(#memory_int#1)|)) (.cse6 (= |#memory_real#1| |old(#memory_real#1)|)) (.cse7 (= |old(#memory_$Pointer$#1.offset)| |#memory_$Pointer$#1.offset|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (not (= (mod (select (select |#memory_int#4| |aws_byte_buf_secure_zero_~buf#1.base|) (+ 16 |aws_byte_buf_secure_zero_~buf#1.offset|)) 18446744073709551616) 0)) .cse8) .cse9 .cse10 (and .cse11 .cse12 .cse13 .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse14 .cse8) (and .cse12 .cse3 .cse4 (= |aws_byte_buf_secure_zero_#t~ret649#1| 0) .cse5 .cse6 .cse7 (exists ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (not (= (mod (select (select |#memory_int#4| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0)))) .cse15)) (or .cse9 (not (= (select (select |old(#memory_$Pointer$#4.offset)| |aws_byte_buf_secure_zero_#in~buf#1.base|) 8) 0)) .cse10 (not (= |aws_byte_buf_secure_zero_#in~buf#1.offset| 0)) .cse15 (and .cse11 .cse12 .cse13 .cse3 .cse14) (not (= (select (select |old(#memory_$Pointer$#4.base)| |aws_byte_buf_secure_zero_#in~buf#1.base|) 8) 0)))))) [2023-11-29 04:39:33,468 INFO L899 garLoopResultBuilder]: For program point L7220-2(lines 7220 7222) no Hoare annotation was computed. [2023-11-29 04:39:33,469 INFO L895 garLoopResultBuilder]: At program point L7219(line 7219) the Hoare annotation is: (let ((.cse0 (forall ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (= (mod (select (select |old(#memory_int#4)| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0))) (.cse1 (forall ((|v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17| Int)) (= (select (select |old(#memory_$Pointer$#4.base)| |v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17|) 8) 0))) (.cse2 (< |aws_byte_buf_secure_zero_#in~buf#1.base| 2))) (and (or .cse0 (and (= |#memory_real#4| |old(#memory_real#4)|) (= |#memory_int#4| |old(#memory_int#4)|) (= |old(#memory_$Pointer$#4.base)| |#memory_$Pointer$#4.base|) (<= 2 |aws_byte_buf_secure_zero_~buf#1.base|) (= |old(#memory_$Pointer$#1.base)| |#memory_$Pointer$#1.base|) (= |#memory_int#1| |old(#memory_int#1)|) (= |#memory_real#1| |old(#memory_real#1)|) (= |old(#memory_$Pointer$#1.offset)| |#memory_$Pointer$#1.offset|) (= |#memory_$Pointer$#4.offset| |old(#memory_$Pointer$#4.offset)|)) .cse1 .cse2) (or .cse0 (not (= (select (select |old(#memory_$Pointer$#4.offset)| |aws_byte_buf_secure_zero_#in~buf#1.base|) 8) 0)) .cse1 (not (= |aws_byte_buf_secure_zero_#in~buf#1.offset| 0)) .cse2 (let ((.cse3 (+ |aws_byte_buf_secure_zero_~buf#1.offset| 8))) (and (= (select (select |#memory_$Pointer$#4.base| |aws_byte_buf_secure_zero_~buf#1.base|) .cse3) 0) (= 0 (select (select |#memory_$Pointer$#4.offset| |aws_byte_buf_secure_zero_~buf#1.base|) .cse3)))) (not (= (select (select |old(#memory_$Pointer$#4.base)| |aws_byte_buf_secure_zero_#in~buf#1.base|) 8) 0))))) [2023-11-29 04:39:33,469 INFO L899 garLoopResultBuilder]: For program point L7220(lines 7220 7222) no Hoare annotation was computed. [2023-11-29 04:39:33,469 INFO L895 garLoopResultBuilder]: At program point L8555(line 8555) the Hoare annotation is: (let ((.cse0 (forall ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (= (mod (select (select |old(#memory_int#4)| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0))) (.cse1 (forall ((|v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17| Int)) (= (select (select |old(#memory_$Pointer$#4.base)| |v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17|) 8) 0))) (.cse2 (< |aws_byte_buf_secure_zero_#in~buf#1.base| 2))) (and (or .cse0 .cse1 (and (= |#memory_real#4| |old(#memory_real#4)|) (= |#memory_int#4| |old(#memory_int#4)|) (not (= (mod |aws_byte_buf_secure_zero_aws_secure_zero_~bufsize#1| 18446744073709551616) 0)) (= |old(#memory_$Pointer$#4.base)| |#memory_$Pointer$#4.base|) (<= 2 |aws_byte_buf_secure_zero_~buf#1.base|) (= |old(#memory_$Pointer$#1.base)| |#memory_$Pointer$#1.base|) (= |#memory_int#1| |old(#memory_int#1)|) (= |#memory_real#1| |old(#memory_real#1)|) (= |old(#memory_$Pointer$#1.offset)| |#memory_$Pointer$#1.offset|) (not (= (mod (select (select |#memory_int#4| |aws_byte_buf_secure_zero_~buf#1.base|) (+ 16 |aws_byte_buf_secure_zero_~buf#1.offset|)) 18446744073709551616) 0)) (= |#memory_$Pointer$#4.offset| |old(#memory_$Pointer$#4.offset)|)) .cse2) (or .cse0 (not (= (select (select |old(#memory_$Pointer$#4.offset)| |aws_byte_buf_secure_zero_#in~buf#1.base|) 8) 0)) .cse1 (not (= |aws_byte_buf_secure_zero_#in~buf#1.offset| 0)) .cse2 (not (= (select (select |old(#memory_$Pointer$#4.base)| |aws_byte_buf_secure_zero_#in~buf#1.base|) 8) 0))))) [2023-11-29 04:39:33,469 INFO L899 garLoopResultBuilder]: For program point L7219-2(line 7219) no Hoare annotation was computed. [2023-11-29 04:39:33,469 INFO L899 garLoopResultBuilder]: For program point L8555-1(line 8555) no Hoare annotation was computed. [2023-11-29 04:39:33,469 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 7218 7225) the Hoare annotation is: (or (and (= |#memory_real#4| |old(#memory_real#4)|) (= |#memory_int#4| |old(#memory_int#4)|) (= |old(#memory_$Pointer$#4.base)| |#memory_$Pointer$#4.base|) (= |old(#memory_$Pointer$#1.base)| |#memory_$Pointer$#1.base|) (= |#memory_int#1| |old(#memory_int#1)|) (= |#memory_real#1| |old(#memory_real#1)|) (= |old(#memory_$Pointer$#1.offset)| |#memory_$Pointer$#1.offset|) (= |#memory_$Pointer$#4.offset| |old(#memory_$Pointer$#4.offset)|)) (forall ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (= (mod (select (select |old(#memory_int#4)| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0)) (forall ((|v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17| Int)) (= (select (select |old(#memory_$Pointer$#4.base)| |v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17|) 8) 0)) (< |aws_byte_buf_secure_zero_#in~buf#1.base| 2)) [2023-11-29 04:39:33,469 INFO L899 garLoopResultBuilder]: For program point L7228-2(line 7228) no Hoare annotation was computed. [2023-11-29 04:39:33,469 INFO L895 garLoopResultBuilder]: At program point L8768(line 8768) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.offset| 0) (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|)) [2023-11-29 04:39:33,470 INFO L895 garLoopResultBuilder]: At program point L7228-1(line 7228) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.offset| 0)) (.cse1 (not (= (select (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) 8) 0))) (.cse2 (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.offset| 0)) (.cse3 (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|))) (or (and .cse0 (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.base|) .cse1 (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_#t~ret654#1| 0) .cse2 .cse3) (and .cse0 (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) .cse1 .cse2 (exists ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (not (= (mod (select (select |#memory_int#4| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0))) .cse3))) [2023-11-29 04:39:33,470 INFO L899 garLoopResultBuilder]: For program point L8768-1(line 8768) no Hoare annotation was computed. [2023-11-29 04:39:33,470 INFO L895 garLoopResultBuilder]: At program point L7228(line 7228) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) (not (= (select (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) 8) 0)) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.offset| 0) (exists ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (not (= (mod (select (select |#memory_int#4| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0))) (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|)) [2023-11-29 04:39:33,470 INFO L899 garLoopResultBuilder]: For program point L6613-1(line 6613) no Hoare annotation was computed. [2023-11-29 04:39:33,470 INFO L895 garLoopResultBuilder]: At program point L6613(line 6613) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2023-11-29 04:39:33,470 INFO L899 garLoopResultBuilder]: For program point L7204-2(line 7204) no Hoare annotation was computed. [2023-11-29 04:39:33,470 INFO L895 garLoopResultBuilder]: At program point L7204-1(line 7204) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.base| |ULTIMATE.start_aws_byte_buf_clean_up_~buf#1.base|) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) (= |ULTIMATE.start_aws_byte_buf_clean_up_~buf#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.offset| 0) (or (exists ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (not (= (mod (select (select |#memory_int#4| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0))) (exists ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_4| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_1| Int)) (let ((.cse0 (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_1| 8))) (and (= (select (select |#memory_$Pointer$#4.offset| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_4|) .cse0) 0) (= (select (select |#memory_$Pointer$#4.base| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_4|) .cse0) 0))))) (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|)) [2023-11-29 04:39:33,471 INFO L895 garLoopResultBuilder]: At program point L7204(line 7204) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.offset| 0)) (.cse1 (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.base| |ULTIMATE.start_aws_byte_buf_clean_up_~buf#1.base|)) (.cse2 (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|)) (.cse3 (= |ULTIMATE.start_aws_byte_buf_clean_up_~buf#1.offset| 0)) (.cse4 (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.offset| 0)) (.cse5 (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (exists ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (not (= (mod (select (select |#memory_int#4| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0))) .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (exists ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_4| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_1| Int)) (let ((.cse6 (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_1| 8))) (and (= (select (select |#memory_$Pointer$#4.offset| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_4|) .cse6) 0) (= (select (select |#memory_$Pointer$#4.base| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_4|) .cse6) 0))))))) [2023-11-29 04:39:33,471 INFO L899 garLoopResultBuilder]: For program point L7229-1(line 7229) no Hoare annotation was computed. [2023-11-29 04:39:33,471 INFO L895 garLoopResultBuilder]: At program point L7229(line 7229) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) (not (= (select (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) 8) 0)) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.offset| 0) (exists ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (not (= (mod (select (select |#memory_int#4| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0))) (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|)) [2023-11-29 04:39:33,471 INFO L895 garLoopResultBuilder]: At program point L6610(line 6610) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2023-11-29 04:39:33,471 INFO L899 garLoopResultBuilder]: For program point L8782-1(line 8782) no Hoare annotation was computed. [2023-11-29 04:39:33,471 INFO L899 garLoopResultBuilder]: For program point L6610-3(lines 6610 6612) no Hoare annotation was computed. [2023-11-29 04:39:33,471 INFO L899 garLoopResultBuilder]: For program point L6610-1(lines 6610 6612) no Hoare annotation was computed. [2023-11-29 04:39:33,471 INFO L895 garLoopResultBuilder]: At program point L8782(line 8782) the Hoare annotation is: (let ((.cse0 (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|))) (and (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.offset| 0) (= (select (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) 24) 0) (<= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_#t~mem1160#1| (* 18446744073709551616 (div |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_#t~mem1160#1| 18446744073709551616))) (= (select .cse0 0) 0) (= (select (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) 24) 0) (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) (= (select .cse0 16) 0))) [2023-11-29 04:39:33,471 INFO L895 garLoopResultBuilder]: At program point L8770(line 8770) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.offset| 0) (not (= (select (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) 8) 0)) (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|)) [2023-11-29 04:39:33,471 INFO L899 garLoopResultBuilder]: For program point L7205-2(lines 7205 7207) no Hoare annotation was computed. [2023-11-29 04:39:33,472 INFO L899 garLoopResultBuilder]: For program point L7205(line 7205) no Hoare annotation was computed. [2023-11-29 04:39:33,472 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 04:39:33,472 INFO L899 garLoopResultBuilder]: For program point L7205-4(lines 7205 7207) no Hoare annotation was computed. [2023-11-29 04:39:33,472 INFO L895 garLoopResultBuilder]: At program point L8770-1(line 8770) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.offset| 0)) (.cse1 (not (= (select (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) 8) 0))) (.cse2 (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|))) (or (and .cse0 .cse1 (exists ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (not (= (mod (select (select |#memory_int#4| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0))) .cse2) (and .cse0 .cse1 (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_#t~ret1157#1| 0) .cse2))) [2023-11-29 04:39:33,472 INFO L899 garLoopResultBuilder]: For program point L8770-2(line 8770) no Hoare annotation was computed. [2023-11-29 04:39:33,472 INFO L895 garLoopResultBuilder]: At program point L8779(lines 8779 8781) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|)) (.cse1 (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|)) (.cse2 (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|))) (and (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.offset| 0) (= (select .cse0 8) 0) (= (select .cse1 24) 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_#t~mem1159#1.base| 0) (= (select .cse2 0) 0) (= (select .cse0 24) 0) (= (select .cse1 8) 0) (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_#t~mem1159#1.offset| 0) (= (select .cse2 16) 0))) [2023-11-29 04:39:33,472 INFO L899 garLoopResultBuilder]: For program point L8779-1(lines 8779 8781) no Hoare annotation was computed. [2023-11-29 04:39:33,472 INFO L895 garLoopResultBuilder]: At program point L8783(line 8783) the Hoare annotation is: (let ((.cse0 (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|))) (and (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_#t~mem1161#1| 0) (= (select (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) 24) 0) (= (select .cse0 0) 0) (= (select (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) 24) 0) (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) (= (select .cse0 16) 0))) [2023-11-29 04:39:33,472 INFO L899 garLoopResultBuilder]: For program point L8783-1(line 8783) no Hoare annotation was computed. [2023-11-29 04:39:33,473 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 04:39:33,473 INFO L895 garLoopResultBuilder]: At program point L7206(line 7206) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.base| |ULTIMATE.start_aws_byte_buf_clean_up_~buf#1.base|) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) (= |ULTIMATE.start_aws_byte_buf_clean_up_~buf#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.offset| 0) (or (exists ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| Int)) (not (= (mod (select (select |#memory_int#4| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12|) (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9| 16)) 18446744073709551616) 0))) (exists ((|v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_4| Int) (|v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_1| Int)) (let ((.cse0 (+ |v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_1| 8))) (and (= (select (select |#memory_$Pointer$#4.offset| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_4|) .cse0) 0) (= (select (select |#memory_$Pointer$#4.base| |v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_4|) .cse0) 0))))) (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|)) [2023-11-29 04:39:33,473 INFO L899 garLoopResultBuilder]: For program point L7206-1(line 7206) no Hoare annotation was computed. [2023-11-29 04:39:33,473 INFO L895 garLoopResultBuilder]: At program point L7231-1(line 7231) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|))) (and (= (select (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.base|) 0) 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_#t~ret655#1| 1) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) (= (select .cse0 24) 0) (= (select (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.base|) 8) 0) (= (select (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) 24) 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.offset| 0) (= (select .cse0 8) 0) (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) (= (select (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) 16) 0))) [2023-11-29 04:39:33,473 INFO L895 garLoopResultBuilder]: At program point L7231(line 7231) the Hoare annotation is: (and (= (select (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.base|) 0) 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.offset| 0) (= (select (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.base|) 8) 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) (= (select (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) 24) 0) (= (select (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.base|) 8) 0) (= (select (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) 24) 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_~buf#1.offset| 0) (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) (= (select (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) 16) 0)) [2023-11-29 04:39:33,473 INFO L899 garLoopResultBuilder]: For program point L7231-2(line 7231) no Hoare annotation was computed. [2023-11-29 04:39:33,473 INFO L899 garLoopResultBuilder]: For program point L6612-1(line 6612) no Hoare annotation was computed. [2023-11-29 04:39:33,473 INFO L895 garLoopResultBuilder]: At program point L6612(line 6612) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2023-11-29 04:39:33,474 INFO L895 garLoopResultBuilder]: At program point L8776(lines 8776 8778) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|)) (.cse1 (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|)) (.cse2 (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|))) (and (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.offset| 0) (= (select .cse0 8) 0) (= (select .cse1 24) 0) (= (select .cse2 0) 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_#t~mem1158#1.offset| 0) (= (select .cse0 24) 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_#t~mem1158#1.base| 0) (= (select .cse1 8) 0) (<= 2 |ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base|) (= (select .cse2 16) 0))) [2023-11-29 04:39:33,474 INFO L899 garLoopResultBuilder]: For program point L8776-1(lines 8776 8778) no Hoare annotation was computed. [2023-11-29 04:39:33,476 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:39:33,477 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:39:33,483 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (forall v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17 : int :: #memory_$Pointer$#4.base[v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17][8] == 0) could not be translated [2023-11-29 04:39:33,483 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (forall v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12 : int, v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9 : int :: #memory_int#4[v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12][v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9 + 16] % 18446744073709551616 == 0) could not be translated [2023-11-29 04:39:33,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:39:33 BoogieIcfgContainer [2023-11-29 04:39:33,486 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:39:33,486 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:39:33,486 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:39:33,486 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:39:33,487 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:33:00" (3/4) ... [2023-11-29 04:39:33,488 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 04:39:33,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_byte_buf_secure_zero [2023-11-29 04:39:33,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2023-11-29 04:39:33,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_memset [2023-11-29 04:39:33,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure memset_impl [2023-11-29 04:39:33,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_byte_buf_is_valid [2023-11-29 04:39:33,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2023-11-29 04:39:33,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mem_release [2023-11-29 04:39:33,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-29 04:39:33,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-29 04:39:33,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2023-11-29 04:39:33,506 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 137 nodes and edges [2023-11-29 04:39:33,508 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2023-11-29 04:39:33,510 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-11-29 04:39:33,511 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-29 04:39:33,513 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-29 04:39:33,514 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 04:39:33,516 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-29 04:39:33,518 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 04:39:34,137 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 04:39:34,137 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 04:39:34,137 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:39:34,137 INFO L158 Benchmark]: Toolchain (without parser) took 398640.56ms. Allocated memory was 132.1MB in the beginning and 564.1MB in the end (delta: 432.0MB). Free memory was 78.1MB in the beginning and 367.6MB in the end (delta: -289.5MB). Peak memory consumption was 169.8MB. Max. memory is 16.1GB. [2023-11-29 04:39:34,138 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 132.1MB. Free memory was 103.0MB in the beginning and 102.9MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:39:34,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2863.73ms. Allocated memory was 132.1MB in the beginning and 163.6MB in the end (delta: 31.5MB). Free memory was 77.7MB in the beginning and 86.0MB in the end (delta: -8.4MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. [2023-11-29 04:39:34,138 INFO L158 Benchmark]: Boogie Procedure Inliner took 208.99ms. Allocated memory is still 163.6MB. Free memory was 86.0MB in the beginning and 74.6MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 04:39:34,138 INFO L158 Benchmark]: Boogie Preprocessor took 186.95ms. Allocated memory is still 163.6MB. Free memory was 74.6MB in the beginning and 58.9MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 04:39:34,138 INFO L158 Benchmark]: RCFGBuilder took 2064.26ms. Allocated memory was 163.6MB in the beginning and 224.4MB in the end (delta: 60.8MB). Free memory was 58.9MB in the beginning and 116.5MB in the end (delta: -57.5MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2023-11-29 04:39:34,139 INFO L158 Benchmark]: TraceAbstraction took 392658.16ms. Allocated memory was 224.4MB in the beginning and 564.1MB in the end (delta: 339.7MB). Free memory was 116.5MB in the beginning and 378.0MB in the end (delta: -261.5MB). Peak memory consumption was 300.0MB. Max. memory is 16.1GB. [2023-11-29 04:39:34,139 INFO L158 Benchmark]: Witness Printer took 650.78ms. Allocated memory is still 564.1MB. Free memory was 378.0MB in the beginning and 367.6MB in the end (delta: 10.4MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2023-11-29 04:39:34,140 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 132.1MB. Free memory was 103.0MB in the beginning and 102.9MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2863.73ms. Allocated memory was 132.1MB in the beginning and 163.6MB in the end (delta: 31.5MB). Free memory was 77.7MB in the beginning and 86.0MB in the end (delta: -8.4MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 208.99ms. Allocated memory is still 163.6MB. Free memory was 86.0MB in the beginning and 74.6MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 186.95ms. Allocated memory is still 163.6MB. Free memory was 74.6MB in the beginning and 58.9MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * RCFGBuilder took 2064.26ms. Allocated memory was 163.6MB in the beginning and 224.4MB in the end (delta: 60.8MB). Free memory was 58.9MB in the beginning and 116.5MB in the end (delta: -57.5MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * TraceAbstraction took 392658.16ms. Allocated memory was 224.4MB in the beginning and 564.1MB in the end (delta: 339.7MB). Free memory was 116.5MB in the beginning and 378.0MB in the end (delta: -261.5MB). Peak memory consumption was 300.0MB. Max. memory is 16.1GB. * Witness Printer took 650.78ms. Allocated memory is still 564.1MB. Free memory was 378.0MB in the beginning and 367.6MB in the end (delta: 10.4MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 8073]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8073] - GenericResultAtLocation [Line: 8559]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8559-8570] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (forall v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17 : int :: #memory_$Pointer$#4.base[v_ULTIMATE.start_aws_byte_buf_clean_up_secure_harness_~#buf~3#1.base_BEFORE_CALL_17][8] == 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (forall v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12 : int, v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9 : int :: #memory_int#4[v_aws_byte_buf_secure_zero_~buf#1.base_BEFORE_CALL_12][v_aws_byte_buf_secure_zero_~buf#1.offset_BEFORE_CALL_9 + 16] % 18446744073709551616 == 0) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 392.6s, OverallIterations: 31, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 164.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 174.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24 mSolverCounterUnknown, 3900 SdHoareTripleChecker+Valid, 155.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3710 mSDsluCounter, 11336 SdHoareTripleChecker+Invalid, 153.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9100 mSDsCounter, 1509 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20321 IncrementalHoareTripleChecker+Invalid, 21854 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1509 mSolverCounterUnsat, 2236 mSDtfsCounter, 20321 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3011 GetRequests, 2482 SyntacticMatches, 9 SemanticMatches, 520 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2500 ImplicationChecksByTransitivity, 11.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=562occurred in iteration=16, InterpolantAutomatonStates: 370, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 31 MinimizatonAttempts, 893 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 750 PreInvPairs, 801 NumberOfFragments, 1903 HoareAnnotationTreeSize, 750 FomulaSimplifications, 386781 FormulaSimplificationTreeSizeReduction, 2.5s HoareSimplificationTime, 39 FomulaSimplificationsInter, 5685 FormulaSimplificationTreeSizeReductionInter, 171.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 8.0s SatisfiabilityAnalysisTime, 37.9s InterpolantComputationTime, 5077 NumberOfCodeBlocks, 5077 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 5272 ConstructedInterpolants, 60 QuantifiedInterpolants, 13265 SizeOfPredicates, 96 NumberOfNonLiveVariables, 36254 ConjunctsInSsa, 283 ConjunctsInUnsatCore, 47 InterpolantComputations, 29 PerfectInterpolantSequences, 6285/6460 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 7117]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-29 04:39:34,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacdcdcd-528f-4c22-b8b5-ee37020af1ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE