./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_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_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/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_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/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_370ff553-f610-44ed-8e9a-5805bd20ecc3/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 2e74061603d1466b037b305bab04ccfaa41041189a61fef40533e07a2fdf1d25 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:56:17,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:56:17,418 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 06:56:17,422 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:56:17,422 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:56:17,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:56:17,446 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:56:17,447 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:56:17,447 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:56:17,448 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:56:17,448 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:56:17,449 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:56:17,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:56:17,450 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:56:17,451 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:56:17,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:56:17,452 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:56:17,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:56:17,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:56:17,453 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:56:17,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:56:17,454 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:56:17,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:56:17,455 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:56:17,455 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:56:17,455 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:56:17,456 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:56:17,456 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:56:17,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:56:17,457 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:56:17,457 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:56:17,458 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:56:17,458 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:56:17,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:56:17,458 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:56:17,458 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:56:17,459 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:56:17,459 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:56:17,459 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:56:17,459 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_370ff553-f610-44ed-8e9a-5805bd20ecc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e74061603d1466b037b305bab04ccfaa41041189a61fef40533e07a2fdf1d25 [2023-11-29 06:56:17,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:56:17,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:56:17,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:56:17,749 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:56:17,749 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:56:17,751 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i [2023-11-29 06:56:20,745 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:56:21,163 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:56:21,164 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i [2023-11-29 06:56:21,195 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/data/fba19373a/6b1510d97f2746199717e17a32502b2f/FLAGb4e76cc6f [2023-11-29 06:56:21,208 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/data/fba19373a/6b1510d97f2746199717e17a32502b2f [2023-11-29 06:56:21,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:56:21,213 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:56:21,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:56:21,215 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:56:21,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:56:21,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:56:21" (1/1) ... [2023-11-29 06:56:21,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f5f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:56:21, skipping insertion in model container [2023-11-29 06:56:21,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:56:21" (1/1) ... [2023-11-29 06:56:21,309 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:56:21,551 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_370ff553-f610-44ed-8e9a-5805bd20ecc3/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4503,4516] [2023-11-29 06:56:21,558 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_370ff553-f610-44ed-8e9a-5805bd20ecc3/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4563,4576] [2023-11-29 06:56:22,445 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:22,446 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:22,447 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:22,448 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:22,449 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:22,465 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:22,466 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:22,468 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:22,469 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:22,831 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-29 06:56:22,832 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-29 06:56:22,833 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-29 06:56:22,834 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-29 06:56:22,836 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-29 06:56:22,836 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-29 06:56:22,837 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-29 06:56:22,838 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-29 06:56:22,839 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-29 06:56:22,840 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-29 06:56:23,080 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:23,081 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:23,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:56:23,201 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:56:23,216 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_370ff553-f610-44ed-8e9a-5805bd20ecc3/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4503,4516] [2023-11-29 06:56:23,216 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_370ff553-f610-44ed-8e9a-5805bd20ecc3/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4563,4576] [2023-11-29 06:56:23,254 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:23,254 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:23,255 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:23,255 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:23,256 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:23,262 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:23,263 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:23,264 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:23,264 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:23,299 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-29 06:56:23,300 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-29 06:56:23,301 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-29 06:56:23,302 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-29 06:56:23,303 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-29 06:56:23,303 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-29 06:56:23,304 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-29 06:56:23,304 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-29 06:56:23,305 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-29 06:56:23,305 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-29 06:56:23,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2023-11-29 06:56:23,377 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:23,378 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:56:23,391 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2023-11-29 06:56:23,435 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:56:23,670 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:56:23,670 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:56:23,671 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:56:23,671 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:56:23,671 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:56:23,671 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:56:23,671 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:56:23,671 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:56:23,671 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:56:23,671 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:56:23,671 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:56:23,671 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:56:23,672 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:56:23,672 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:56:23,672 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:56:23,672 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:56:23,672 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:56:23,672 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:56:23,680 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:56:23,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:56:23 WrapperNode [2023-11-29 06:56:23,680 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:56:23,681 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:56:23,681 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:56:23,682 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:56:23,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:56:23" (1/1) ... [2023-11-29 06:56:23,763 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:56:23" (1/1) ... [2023-11-29 06:56:23,826 INFO L138 Inliner]: procedures = 689, calls = 2617, calls flagged for inlining = 59, calls inlined = 5, statements flattened = 789 [2023-11-29 06:56:23,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:56:23,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:56:23,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:56:23,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:56:23,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:56:23" (1/1) ... [2023-11-29 06:56:23,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:56:23" (1/1) ... [2023-11-29 06:56:23,846 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:56:23" (1/1) ... [2023-11-29 06:56:23,915 INFO L175 MemorySlicer]: Split 529 memory accesses to 6 slices as follows [2, 5, 238, 256, 25, 3]. 48 percent of accesses are in the largest equivalence class. The 506 initializations are split as follows [2, 5, 236, 256, 4, 3]. The 4 writes are split as follows [0, 0, 0, 0, 4, 0]. [2023-11-29 06:56:23,915 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:56:23" (1/1) ... [2023-11-29 06:56:23,916 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:56:23" (1/1) ... [2023-11-29 06:56:23,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:56:23" (1/1) ... [2023-11-29 06:56:23,952 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:56:23" (1/1) ... [2023-11-29 06:56:23,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:56:23" (1/1) ... [2023-11-29 06:56:23,966 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:56:23" (1/1) ... [2023-11-29 06:56:23,979 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:56:23,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:56:23,981 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:56:23,981 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:56:23,981 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:56:23" (1/1) ... [2023-11-29 06:56:23,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:56:24,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:56:24,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:56:24,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:56:24,046 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-29 06:56:24,046 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-29 06:56:24,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:56:24,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 06:56:24,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 06:56:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 06:56:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 06:56:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 06:56:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 06:56:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 06:56:24,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 06:56:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 06:56:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:56:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 06:56:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 06:56:24,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 06:56:24,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 06:56:24,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 06:56:24,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-29 06:56:24,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:56:24,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:56:24,048 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-29 06:56:24,048 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-29 06:56:24,048 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 06:56:24,049 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 06:56:24,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:56:24,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 06:56:24,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 06:56:24,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 06:56:24,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 06:56:24,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 06:56:24,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-29 06:56:24,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-29 06:56:24,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-29 06:56:24,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-29 06:56:24,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-29 06:56:24,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-29 06:56:24,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-29 06:56:24,050 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-29 06:56:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-29 06:56:24,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 06:56:24,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 06:56:24,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 06:56:24,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 06:56:24,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 06:56:24,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 06:56:24,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:56:24,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 06:56:24,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 06:56:24,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 06:56:24,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 06:56:24,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 06:56:24,289 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:56:24,291 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:56:25,155 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:56:25,269 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:56:25,269 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 06:56:25,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:56:25 BoogieIcfgContainer [2023-11-29 06:56:25,270 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:56:25,272 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:56:25,273 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:56:25,275 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:56:25,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:56:21" (1/3) ... [2023-11-29 06:56:25,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ebfa3e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:56:25, skipping insertion in model container [2023-11-29 06:56:25,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:56:23" (2/3) ... [2023-11-29 06:56:25,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ebfa3e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:56:25, skipping insertion in model container [2023-11-29 06:56:25,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:56:25" (3/3) ... [2023-11-29 06:56:25,278 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_from_empty_array_harness.i [2023-11-29 06:56:25,293 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:56:25,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 06:56:25,333 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:56:25,338 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;@794cc4d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:56:25,338 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 06:56:25,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 40 states have (on average 1.3) internal successors, (52), 41 states have internal predecessors, (52), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 06:56:25,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 06:56:25,349 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:25,350 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:56:25,350 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:25,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:25,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1037058620, now seen corresponding path program 1 times [2023-11-29 06:56:25,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:25,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829873691] [2023-11-29 06:56:25,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:25,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:25,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:25,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:25,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:25,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:25,877 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:56:25,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:25,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829873691] [2023-11-29 06:56:25,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829873691] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:25,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:25,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:56:25,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270408478] [2023-11-29 06:56:25,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:25,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:56:25,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:25,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:56:25,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:56:25,920 INFO L87 Difference]: Start difference. First operand has 61 states, 40 states have (on average 1.3) internal successors, (52), 41 states have internal predecessors, (52), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:56:26,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:26,158 INFO L93 Difference]: Finished difference Result 118 states and 165 transitions. [2023-11-29 06:56:26,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:56:26,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2023-11-29 06:56:26,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:26,170 INFO L225 Difference]: With dead ends: 118 [2023-11-29 06:56:26,171 INFO L226 Difference]: Without dead ends: 57 [2023-11-29 06:56:26,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:56:26,179 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 32 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:26,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 55 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:56:26,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-29 06:56:26,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-11-29 06:56:26,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 38 states have internal predecessors, (45), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 06:56:26,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2023-11-29 06:56:26,225 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 26 [2023-11-29 06:56:26,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:26,226 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2023-11-29 06:56:26,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:56:26,226 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2023-11-29 06:56:26,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 06:56:26,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:26,228 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:56:26,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:56:26,229 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:26,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:26,229 INFO L85 PathProgramCache]: Analyzing trace with hash 872954432, now seen corresponding path program 1 times [2023-11-29 06:56:26,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:26,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272142938] [2023-11-29 06:56:26,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:26,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:26,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:26,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:26,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:26,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:26,844 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:56:26,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:26,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272142938] [2023-11-29 06:56:26,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272142938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:26,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:26,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:56:26,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906827271] [2023-11-29 06:56:26,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:26,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:56:26,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:26,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:56:26,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:56:26,848 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:56:27,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:27,092 INFO L93 Difference]: Finished difference Result 106 states and 134 transitions. [2023-11-29 06:56:27,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:56:27,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2023-11-29 06:56:27,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:27,096 INFO L225 Difference]: With dead ends: 106 [2023-11-29 06:56:27,096 INFO L226 Difference]: Without dead ends: 59 [2023-11-29 06:56:27,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:56:27,098 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 51 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:27,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 93 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:56:27,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-29 06:56:27,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-29 06:56:27,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 40 states have internal predecessors, (46), 14 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 06:56:27,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions. [2023-11-29 06:56:27,111 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 74 transitions. Word has length 26 [2023-11-29 06:56:27,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:27,111 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 74 transitions. [2023-11-29 06:56:27,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:56:27,112 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2023-11-29 06:56:27,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 06:56:27,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:27,113 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:56:27,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:56:27,114 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:27,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:27,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1950610027, now seen corresponding path program 1 times [2023-11-29 06:56:27,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:27,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440394786] [2023-11-29 06:56:27,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:27,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:28,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:28,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:28,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:28,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:28,156 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:56:28,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:28,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440394786] [2023-11-29 06:56:28,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440394786] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:28,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:28,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:56:28,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890175807] [2023-11-29 06:56:28,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:28,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:56:28,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:28,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:56:28,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:56:28,159 INFO L87 Difference]: Start difference. First operand 59 states and 74 transitions. Second operand has 9 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 06:56:28,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:28,549 INFO L93 Difference]: Finished difference Result 70 states and 86 transitions. [2023-11-29 06:56:28,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:56:28,550 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2023-11-29 06:56:28,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:28,552 INFO L225 Difference]: With dead ends: 70 [2023-11-29 06:56:28,552 INFO L226 Difference]: Without dead ends: 68 [2023-11-29 06:56:28,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:56:28,554 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 59 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:28,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 194 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:56:28,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-29 06:56:28,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2023-11-29 06:56:28,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 43 states have (on average 1.186046511627907) internal successors, (51), 46 states have internal predecessors, (51), 15 states have call successors, (15), 6 states have call predecessors, (15), 8 states have return successors, (17), 14 states have call predecessors, (17), 14 states have call successors, (17) [2023-11-29 06:56:28,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 83 transitions. [2023-11-29 06:56:28,565 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 83 transitions. Word has length 32 [2023-11-29 06:56:28,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:28,565 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 83 transitions. [2023-11-29 06:56:28,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 06:56:28,566 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 83 transitions. [2023-11-29 06:56:28,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 06:56:28,567 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:28,567 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:56:28,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 06:56:28,568 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:28,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:28,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1206889807, now seen corresponding path program 1 times [2023-11-29 06:56:28,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:28,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962926872] [2023-11-29 06:56:28,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:28,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:31,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:31,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:31,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:32,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:32,850 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:56:32,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:32,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962926872] [2023-11-29 06:56:32,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962926872] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:56:32,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476730227] [2023-11-29 06:56:32,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:32,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:56:32,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:56:32,854 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:56:32,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:56:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:33,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 2402 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-29 06:56:33,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:56:33,511 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 56 treesize of output 51 [2023-11-29 06:56:33,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 61 [2023-11-29 06:56:33,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 100 [2023-11-29 06:56:33,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 39 [2023-11-29 06:56:33,649 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 57 treesize of output 52 [2023-11-29 06:56:33,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 65 [2023-11-29 06:56:33,703 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 06:56:33,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 102 [2023-11-29 06:56:33,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 119 [2023-11-29 06:56:33,767 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 06:56:33,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 29 [2023-11-29 06:56:33,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 1 [2023-11-29 06:56:35,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:56:35,620 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:56:35,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476730227] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:35,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:56:35,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [17] total 25 [2023-11-29 06:56:35,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072811330] [2023-11-29 06:56:35,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:35,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:56:35,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:35,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:56:35,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2023-11-29 06:56:35,624 INFO L87 Difference]: Start difference. First operand 67 states and 83 transitions. Second operand has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:56:37,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:37,593 INFO L93 Difference]: Finished difference Result 152 states and 191 transitions. [2023-11-29 06:56:37,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:56:37,594 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2023-11-29 06:56:37,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:37,595 INFO L225 Difference]: With dead ends: 152 [2023-11-29 06:56:37,596 INFO L226 Difference]: Without dead ends: 100 [2023-11-29 06:56:37,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=142, Invalid=728, Unknown=0, NotChecked=0, Total=870 [2023-11-29 06:56:37,598 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 133 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:37,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 285 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:56:37,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-29 06:56:37,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 82. [2023-11-29 06:56:37,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 57 states have (on average 1.2280701754385965) internal successors, (70), 60 states have internal predecessors, (70), 15 states have call successors, (15), 7 states have call predecessors, (15), 9 states have return successors, (17), 14 states have call predecessors, (17), 14 states have call successors, (17) [2023-11-29 06:56:37,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 102 transitions. [2023-11-29 06:56:37,617 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 102 transitions. Word has length 36 [2023-11-29 06:56:37,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:37,618 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 102 transitions. [2023-11-29 06:56:37,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:56:37,619 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 102 transitions. [2023-11-29 06:56:37,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 06:56:37,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:37,620 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:56:37,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:56:37,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:56:37,821 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:37,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:37,821 INFO L85 PathProgramCache]: Analyzing trace with hash 195772557, now seen corresponding path program 1 times [2023-11-29 06:56:37,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:37,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381607688] [2023-11-29 06:56:37,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:37,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:38,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:38,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:38,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:38,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:38,952 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:56:38,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:38,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381607688] [2023-11-29 06:56:38,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381607688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:38,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:38,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:56:38,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258432468] [2023-11-29 06:56:38,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:38,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:56:38,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:38,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:56:38,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:56:38,955 INFO L87 Difference]: Start difference. First operand 82 states and 102 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:56:39,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:39,341 INFO L93 Difference]: Finished difference Result 167 states and 210 transitions. [2023-11-29 06:56:39,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:56:39,342 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2023-11-29 06:56:39,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:39,344 INFO L225 Difference]: With dead ends: 167 [2023-11-29 06:56:39,344 INFO L226 Difference]: Without dead ends: 99 [2023-11-29 06:56:39,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:56:39,346 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 125 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:39,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 148 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:56:39,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-29 06:56:39,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 84. [2023-11-29 06:56:39,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 62 states have internal predecessors, (73), 15 states have call successors, (15), 7 states have call predecessors, (15), 9 states have return successors, (17), 14 states have call predecessors, (17), 14 states have call successors, (17) [2023-11-29 06:56:39,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 105 transitions. [2023-11-29 06:56:39,363 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 105 transitions. Word has length 36 [2023-11-29 06:56:39,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:39,364 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 105 transitions. [2023-11-29 06:56:39,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:56:39,364 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 105 transitions. [2023-11-29 06:56:39,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 06:56:39,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:39,366 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:56:39,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 06:56:39,366 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:39,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:39,366 INFO L85 PathProgramCache]: Analyzing trace with hash 185821453, now seen corresponding path program 1 times [2023-11-29 06:56:39,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:39,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144738332] [2023-11-29 06:56:39,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:39,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:39,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:39,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:39,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:39,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:39,648 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:56:39,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:39,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144738332] [2023-11-29 06:56:39,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144738332] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:39,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:39,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:56:39,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828814506] [2023-11-29 06:56:39,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:39,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:56:39,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:39,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:56:39,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:56:39,651 INFO L87 Difference]: Start difference. First operand 84 states and 105 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 06:56:39,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:39,884 INFO L93 Difference]: Finished difference Result 164 states and 210 transitions. [2023-11-29 06:56:39,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:56:39,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 36 [2023-11-29 06:56:39,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:39,887 INFO L225 Difference]: With dead ends: 164 [2023-11-29 06:56:39,887 INFO L226 Difference]: Without dead ends: 94 [2023-11-29 06:56:39,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:56:39,889 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 60 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:39,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 98 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:56:39,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-29 06:56:39,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 84. [2023-11-29 06:56:39,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 59 states have (on average 1.2203389830508475) internal successors, (72), 62 states have internal predecessors, (72), 15 states have call successors, (15), 7 states have call predecessors, (15), 9 states have return successors, (17), 14 states have call predecessors, (17), 14 states have call successors, (17) [2023-11-29 06:56:39,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 104 transitions. [2023-11-29 06:56:39,906 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 104 transitions. Word has length 36 [2023-11-29 06:56:39,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:39,906 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 104 transitions. [2023-11-29 06:56:39,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 06:56:39,906 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 104 transitions. [2023-11-29 06:56:39,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 06:56:39,908 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:39,908 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:56:39,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 06:56:39,908 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:39,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:39,909 INFO L85 PathProgramCache]: Analyzing trace with hash -825295797, now seen corresponding path program 1 times [2023-11-29 06:56:39,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:39,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244522097] [2023-11-29 06:56:39,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:39,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:40,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:40,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:40,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:40,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:40,432 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:56:40,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:40,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244522097] [2023-11-29 06:56:40,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244522097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:40,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:40,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:56:40,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938428077] [2023-11-29 06:56:40,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:40,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:56:40,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:40,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:56:40,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:56:40,434 INFO L87 Difference]: Start difference. First operand 84 states and 104 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 06:56:40,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:40,694 INFO L93 Difference]: Finished difference Result 152 states and 192 transitions. [2023-11-29 06:56:40,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:56:40,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 36 [2023-11-29 06:56:40,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:40,695 INFO L225 Difference]: With dead ends: 152 [2023-11-29 06:56:40,696 INFO L226 Difference]: Without dead ends: 87 [2023-11-29 06:56:40,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 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 06:56:40,697 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 56 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:40,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 97 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:56:40,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-29 06:56:40,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 84. [2023-11-29 06:56:40,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 62 states have internal predecessors, (71), 15 states have call successors, (15), 7 states have call predecessors, (15), 9 states have return successors, (17), 14 states have call predecessors, (17), 14 states have call successors, (17) [2023-11-29 06:56:40,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 103 transitions. [2023-11-29 06:56:40,713 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 103 transitions. Word has length 36 [2023-11-29 06:56:40,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:40,713 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 103 transitions. [2023-11-29 06:56:40,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 06:56:40,713 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 103 transitions. [2023-11-29 06:56:40,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 06:56:40,715 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:40,715 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:56:40,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 06:56:40,715 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:40,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:40,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1526360375, now seen corresponding path program 1 times [2023-11-29 06:56:40,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:40,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744350969] [2023-11-29 06:56:40,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:40,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:41,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:41,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:41,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:41,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:41,659 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:56:41,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:41,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744350969] [2023-11-29 06:56:41,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744350969] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:41,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:41,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:56:41,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11491633] [2023-11-29 06:56:41,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:41,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:56:41,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:41,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:56:41,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:56:41,662 INFO L87 Difference]: Start difference. First operand 84 states and 103 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:56:42,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:42,017 INFO L93 Difference]: Finished difference Result 164 states and 202 transitions. [2023-11-29 06:56:42,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:56:42,017 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2023-11-29 06:56:42,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:42,018 INFO L225 Difference]: With dead ends: 164 [2023-11-29 06:56:42,019 INFO L226 Difference]: Without dead ends: 99 [2023-11-29 06:56:42,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:56:42,020 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 56 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:42,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 128 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:56:42,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-29 06:56:42,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 84. [2023-11-29 06:56:42,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 62 states have internal predecessors, (71), 15 states have call successors, (15), 7 states have call predecessors, (15), 9 states have return successors, (17), 14 states have call predecessors, (17), 14 states have call successors, (17) [2023-11-29 06:56:42,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 103 transitions. [2023-11-29 06:56:42,034 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 103 transitions. Word has length 36 [2023-11-29 06:56:42,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:42,034 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 103 transitions. [2023-11-29 06:56:42,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:56:42,035 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 103 transitions. [2023-11-29 06:56:42,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 06:56:42,036 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:42,036 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:56:42,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 06:56:42,037 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:42,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:42,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1590460260, now seen corresponding path program 1 times [2023-11-29 06:56:42,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:42,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816950756] [2023-11-29 06:56:42,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:42,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:42,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:42,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:42,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:42,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:42,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:42,916 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:56:42,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:42,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816950756] [2023-11-29 06:56:42,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816950756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:42,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:42,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 06:56:42,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393901369] [2023-11-29 06:56:42,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:42,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:56:42,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:42,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:56:42,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:56:42,918 INFO L87 Difference]: Start difference. First operand 84 states and 103 transitions. Second operand has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 06:56:43,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:43,350 INFO L93 Difference]: Finished difference Result 104 states and 124 transitions. [2023-11-29 06:56:43,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:56:43,351 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2023-11-29 06:56:43,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:43,352 INFO L225 Difference]: With dead ends: 104 [2023-11-29 06:56:43,352 INFO L226 Difference]: Without dead ends: 102 [2023-11-29 06:56:43,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:56:43,354 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 68 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:43,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 246 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:56:43,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-29 06:56:43,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 86. [2023-11-29 06:56:43,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 64 states have internal predecessors, (73), 15 states have call successors, (15), 7 states have call predecessors, (15), 9 states have return successors, (17), 14 states have call predecessors, (17), 14 states have call successors, (17) [2023-11-29 06:56:43,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 105 transitions. [2023-11-29 06:56:43,369 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 105 transitions. Word has length 38 [2023-11-29 06:56:43,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:43,369 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 105 transitions. [2023-11-29 06:56:43,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 06:56:43,370 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 105 transitions. [2023-11-29 06:56:43,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 06:56:43,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:43,371 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:56:43,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 06:56:43,372 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:43,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:43,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1197433250, now seen corresponding path program 1 times [2023-11-29 06:56:43,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:43,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562677647] [2023-11-29 06:56:43,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:43,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:44,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:44,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:44,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:44,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:44,295 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:56:44,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:44,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562677647] [2023-11-29 06:56:44,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562677647] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:44,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:44,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:56:44,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45695189] [2023-11-29 06:56:44,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:44,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:56:44,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:44,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:56:44,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:56:44,298 INFO L87 Difference]: Start difference. First operand 86 states and 105 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:56:44,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:44,661 INFO L93 Difference]: Finished difference Result 162 states and 196 transitions. [2023-11-29 06:56:44,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:56:44,662 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2023-11-29 06:56:44,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:44,663 INFO L225 Difference]: With dead ends: 162 [2023-11-29 06:56:44,663 INFO L226 Difference]: Without dead ends: 95 [2023-11-29 06:56:44,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:56:44,664 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 52 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:44,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 148 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:56:44,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-29 06:56:44,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 80. [2023-11-29 06:56:44,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 57 states have (on average 1.2105263157894737) internal successors, (69), 59 states have internal predecessors, (69), 14 states have call successors, (14), 7 states have call predecessors, (14), 8 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 06:56:44,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 97 transitions. [2023-11-29 06:56:44,677 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 97 transitions. Word has length 38 [2023-11-29 06:56:44,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:44,677 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 97 transitions. [2023-11-29 06:56:44,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:56:44,678 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 97 transitions. [2023-11-29 06:56:44,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 06:56:44,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:44,679 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:56:44,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 06:56:44,679 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:44,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:44,680 INFO L85 PathProgramCache]: Analyzing trace with hash 2032892831, now seen corresponding path program 1 times [2023-11-29 06:56:44,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:44,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395000377] [2023-11-29 06:56:44,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:44,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:44,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:45,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:45,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:45,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:45,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:45,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:56:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:45,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:56:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:45,113 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 06:56:45,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:45,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395000377] [2023-11-29 06:56:45,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395000377] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:45,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:45,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:56:45,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817514137] [2023-11-29 06:56:45,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:45,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:56:45,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:45,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:56:45,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:56:45,115 INFO L87 Difference]: Start difference. First operand 80 states and 97 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:56:45,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:45,430 INFO L93 Difference]: Finished difference Result 110 states and 131 transitions. [2023-11-29 06:56:45,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:56:45,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2023-11-29 06:56:45,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:45,431 INFO L225 Difference]: With dead ends: 110 [2023-11-29 06:56:45,432 INFO L226 Difference]: Without dead ends: 80 [2023-11-29 06:56:45,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:56:45,433 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 59 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:45,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 90 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:56:45,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-11-29 06:56:45,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-11-29 06:56:45,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 57 states have (on average 1.1929824561403508) internal successors, (68), 59 states have internal predecessors, (68), 14 states have call successors, (14), 7 states have call predecessors, (14), 8 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 06:56:45,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 96 transitions. [2023-11-29 06:56:45,450 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 96 transitions. Word has length 43 [2023-11-29 06:56:45,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:45,450 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 96 transitions. [2023-11-29 06:56:45,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:56:45,451 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 96 transitions. [2023-11-29 06:56:45,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 06:56:45,452 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:45,452 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:56:45,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 06:56:45,453 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:45,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:45,453 INFO L85 PathProgramCache]: Analyzing trace with hash 479996852, now seen corresponding path program 1 times [2023-11-29 06:56:45,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:45,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897632338] [2023-11-29 06:56:45,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:45,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:45,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:45,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:45,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:46,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:46,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:56:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:46,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:56:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:46,076 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 06:56:46,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:46,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897632338] [2023-11-29 06:56:46,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897632338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:46,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:46,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:56:46,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726958699] [2023-11-29 06:56:46,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:46,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:56:46,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:46,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:56:46,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:56:46,079 INFO L87 Difference]: Start difference. First operand 80 states and 96 transitions. Second operand has 9 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-29 06:56:46,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:46,349 INFO L93 Difference]: Finished difference Result 94 states and 111 transitions. [2023-11-29 06:56:46,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:56:46,350 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 49 [2023-11-29 06:56:46,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:46,351 INFO L225 Difference]: With dead ends: 94 [2023-11-29 06:56:46,351 INFO L226 Difference]: Without dead ends: 92 [2023-11-29 06:56:46,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:56:46,352 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 56 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:46,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 193 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:56:46,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-29 06:56:46,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2023-11-29 06:56:46,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 64 states have (on average 1.171875) internal successors, (75), 68 states have internal predecessors, (75), 15 states have call successors, (15), 8 states have call predecessors, (15), 11 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2023-11-29 06:56:46,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 108 transitions. [2023-11-29 06:56:46,363 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 108 transitions. Word has length 49 [2023-11-29 06:56:46,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:46,363 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 108 transitions. [2023-11-29 06:56:46,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-29 06:56:46,364 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 108 transitions. [2023-11-29 06:56:46,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 06:56:46,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:46,365 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:56:46,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 06:56:46,365 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:46,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:46,366 INFO L85 PathProgramCache]: Analyzing trace with hash 552166382, now seen corresponding path program 1 times [2023-11-29 06:56:46,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:46,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167301406] [2023-11-29 06:56:46,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:46,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:47,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:47,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:47,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:47,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:48,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:56:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:48,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:56:48,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:48,253 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 06:56:48,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:48,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167301406] [2023-11-29 06:56:48,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167301406] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:56:48,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361969818] [2023-11-29 06:56:48,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:48,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:56:48,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:56:48,255 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:56:48,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:56:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:49,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 2471 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-29 06:56:49,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:56:49,802 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:56:49,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:56:50,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361969818] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:56:50,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:56:50,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 23 [2023-11-29 06:56:50,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618353637] [2023-11-29 06:56:50,296 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:56:50,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 06:56:50,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:50,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 06:56:50,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=716, Unknown=0, NotChecked=0, Total=812 [2023-11-29 06:56:50,298 INFO L87 Difference]: Start difference. First operand 91 states and 108 transitions. Second operand has 23 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 21 states have internal predecessors, (59), 6 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 06:56:52,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:52,420 INFO L93 Difference]: Finished difference Result 214 states and 256 transitions. [2023-11-29 06:56:52,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-29 06:56:52,420 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 21 states have internal predecessors, (59), 6 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 53 [2023-11-29 06:56:52,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:52,422 INFO L225 Difference]: With dead ends: 214 [2023-11-29 06:56:52,422 INFO L226 Difference]: Without dead ends: 177 [2023-11-29 06:56:52,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 68 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=378, Invalid=1784, Unknown=0, NotChecked=0, Total=2162 [2023-11-29 06:56:52,424 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 323 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 1100 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:52,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 184 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1100 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 06:56:52,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-29 06:56:52,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 124. [2023-11-29 06:56:52,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 92 states have (on average 1.1956521739130435) internal successors, (110), 97 states have internal predecessors, (110), 17 states have call successors, (17), 10 states have call predecessors, (17), 14 states have return successors, (21), 16 states have call predecessors, (21), 16 states have call successors, (21) [2023-11-29 06:56:52,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 148 transitions. [2023-11-29 06:56:52,441 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 148 transitions. Word has length 53 [2023-11-29 06:56:52,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:52,441 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 148 transitions. [2023-11-29 06:56:52,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 21 states have internal predecessors, (59), 6 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 06:56:52,441 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 148 transitions. [2023-11-29 06:56:52,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 06:56:52,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:52,442 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:56:52,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 06:56:52,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 06:56:52,643 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:52,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:52,643 INFO L85 PathProgramCache]: Analyzing trace with hash -458950868, now seen corresponding path program 1 times [2023-11-29 06:56:52,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:52,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118254657] [2023-11-29 06:56:52,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:52,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:53,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:53,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:53,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:53,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:53,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:56:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:53,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:56:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:53,547 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 06:56:53,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:53,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118254657] [2023-11-29 06:56:53,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118254657] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:53,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:53,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:56:53,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936866280] [2023-11-29 06:56:53,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:53,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:56:53,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:53,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:56:53,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:56:53,550 INFO L87 Difference]: Start difference. First operand 124 states and 148 transitions. Second operand has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:56:53,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:53,942 INFO L93 Difference]: Finished difference Result 185 states and 218 transitions. [2023-11-29 06:56:53,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:56:53,942 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2023-11-29 06:56:53,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:53,943 INFO L225 Difference]: With dead ends: 185 [2023-11-29 06:56:53,943 INFO L226 Difference]: Without dead ends: 124 [2023-11-29 06:56:53,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:56:53,945 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 116 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:53,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 93 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:56:53,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-29 06:56:53,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 116. [2023-11-29 06:56:53,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 85 states have (on average 1.1529411764705881) internal successors, (98), 89 states have internal predecessors, (98), 17 states have call successors, (17), 10 states have call predecessors, (17), 13 states have return successors, (20), 16 states have call predecessors, (20), 16 states have call successors, (20) [2023-11-29 06:56:53,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 135 transitions. [2023-11-29 06:56:53,960 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 135 transitions. Word has length 53 [2023-11-29 06:56:53,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:53,961 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 135 transitions. [2023-11-29 06:56:53,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:56:53,961 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 135 transitions. [2023-11-29 06:56:53,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 06:56:53,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:53,962 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:56:53,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 06:56:53,962 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:53,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:53,962 INFO L85 PathProgramCache]: Analyzing trace with hash 2113883496, now seen corresponding path program 1 times [2023-11-29 06:56:53,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:53,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205349391] [2023-11-29 06:56:53,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:53,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:54,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:54,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:54,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:54,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:54,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:54,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:56:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:54,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:56:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:54,757 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 06:56:54,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:54,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205349391] [2023-11-29 06:56:54,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205349391] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:54,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:54,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:56:54,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980516556] [2023-11-29 06:56:54,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:54,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:56:54,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:54,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:56:54,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:56:54,759 INFO L87 Difference]: Start difference. First operand 116 states and 135 transitions. Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:56:55,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:55,074 INFO L93 Difference]: Finished difference Result 159 states and 184 transitions. [2023-11-29 06:56:55,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:56:55,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2023-11-29 06:56:55,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:55,076 INFO L225 Difference]: With dead ends: 159 [2023-11-29 06:56:55,076 INFO L226 Difference]: Without dead ends: 123 [2023-11-29 06:56:55,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:56:55,077 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 62 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:55,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 84 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:56:55,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-29 06:56:55,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 118. [2023-11-29 06:56:55,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 87 states have (on average 1.1264367816091954) internal successors, (98), 91 states have internal predecessors, (98), 17 states have call successors, (17), 10 states have call predecessors, (17), 13 states have return successors, (20), 16 states have call predecessors, (20), 16 states have call successors, (20) [2023-11-29 06:56:55,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 135 transitions. [2023-11-29 06:56:55,089 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 135 transitions. Word has length 53 [2023-11-29 06:56:55,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:55,090 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 135 transitions. [2023-11-29 06:56:55,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:56:55,090 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 135 transitions. [2023-11-29 06:56:55,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 06:56:55,091 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:55,091 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:56:55,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 06:56:55,092 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:55,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:55,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1469287834, now seen corresponding path program 1 times [2023-11-29 06:56:55,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:55,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215217666] [2023-11-29 06:56:55,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:55,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:55,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:55,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:55,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:55,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:55,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:56:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:55,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:56:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:55,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 06:56:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:55,866 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 06:56:55,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:55,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215217666] [2023-11-29 06:56:55,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215217666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:55,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:55,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:56:55,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302871498] [2023-11-29 06:56:55,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:55,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:56:55,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:55,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:56:55,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:56:55,868 INFO L87 Difference]: Start difference. First operand 118 states and 135 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:56:56,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:56,139 INFO L93 Difference]: Finished difference Result 124 states and 140 transitions. [2023-11-29 06:56:56,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:56:56,140 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 55 [2023-11-29 06:56:56,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:56,141 INFO L225 Difference]: With dead ends: 124 [2023-11-29 06:56:56,141 INFO L226 Difference]: Without dead ends: 122 [2023-11-29 06:56:56,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:56:56,142 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 44 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:56,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 104 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:56:56,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-11-29 06:56:56,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2023-11-29 06:56:56,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 90 states have (on average 1.1222222222222222) internal successors, (101), 94 states have internal predecessors, (101), 17 states have call successors, (17), 11 states have call predecessors, (17), 14 states have return successors, (20), 16 states have call predecessors, (20), 16 states have call successors, (20) [2023-11-29 06:56:56,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 138 transitions. [2023-11-29 06:56:56,158 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 138 transitions. Word has length 55 [2023-11-29 06:56:56,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:56,158 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 138 transitions. [2023-11-29 06:56:56,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:56:56,158 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 138 transitions. [2023-11-29 06:56:56,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 06:56:56,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:56,159 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:56:56,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 06:56:56,160 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:56,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:56,160 INFO L85 PathProgramCache]: Analyzing trace with hash 100723267, now seen corresponding path program 1 times [2023-11-29 06:56:56,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:56,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995771622] [2023-11-29 06:56:56,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:56,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:56,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:56,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:56,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:56,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:56,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:56:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:56,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:56:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:56,743 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 06:56:56,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:56,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995771622] [2023-11-29 06:56:56,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995771622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:56,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:56,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 06:56:56,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491845713] [2023-11-29 06:56:56,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:56,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:56:56,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:56,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:56:56,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:56:56,745 INFO L87 Difference]: Start difference. First operand 122 states and 138 transitions. Second operand has 11 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-29 06:56:57,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:57,106 INFO L93 Difference]: Finished difference Result 140 states and 156 transitions. [2023-11-29 06:56:57,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:56:57,107 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 55 [2023-11-29 06:56:57,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:57,108 INFO L225 Difference]: With dead ends: 140 [2023-11-29 06:56:57,108 INFO L226 Difference]: Without dead ends: 138 [2023-11-29 06:56:57,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:56:57,109 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 65 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:57,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 245 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:56:57,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-29 06:56:57,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 129. [2023-11-29 06:56:57,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 96 states have (on average 1.1145833333333333) internal successors, (107), 101 states have internal predecessors, (107), 17 states have call successors, (17), 11 states have call predecessors, (17), 15 states have return successors, (21), 16 states have call predecessors, (21), 16 states have call successors, (21) [2023-11-29 06:56:57,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 145 transitions. [2023-11-29 06:56:57,125 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 145 transitions. Word has length 55 [2023-11-29 06:56:57,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:57,126 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 145 transitions. [2023-11-29 06:56:57,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-29 06:56:57,126 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 145 transitions. [2023-11-29 06:56:57,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 06:56:57,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:57,127 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:56:57,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 06:56:57,127 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:57,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:57,128 INFO L85 PathProgramCache]: Analyzing trace with hash -292303743, now seen corresponding path program 1 times [2023-11-29 06:56:57,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:57,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532471094] [2023-11-29 06:56:57,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:57,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:57,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:57,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:57,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:57,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:57,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:56:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:57,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:56:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:58,091 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 06:56:58,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:58,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532471094] [2023-11-29 06:56:58,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532471094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:58,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:58,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:56:58,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257215287] [2023-11-29 06:56:58,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:58,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:56:58,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:58,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:56:58,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:56:58,093 INFO L87 Difference]: Start difference. First operand 129 states and 145 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:56:58,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:58,408 INFO L93 Difference]: Finished difference Result 167 states and 186 transitions. [2023-11-29 06:56:58,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:56:58,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 55 [2023-11-29 06:56:58,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:58,410 INFO L225 Difference]: With dead ends: 167 [2023-11-29 06:56:58,410 INFO L226 Difference]: Without dead ends: 125 [2023-11-29 06:56:58,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:56:58,411 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 70 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:58,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 74 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:56:58,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-29 06:56:58,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2023-11-29 06:56:58,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 91 states have (on average 1.0879120879120878) internal successors, (99), 95 states have internal predecessors, (99), 17 states have call successors, (17), 11 states have call predecessors, (17), 14 states have return successors, (20), 16 states have call predecessors, (20), 16 states have call successors, (20) [2023-11-29 06:56:58,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions. [2023-11-29 06:56:58,430 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 55 [2023-11-29 06:56:58,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:58,431 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions. [2023-11-29 06:56:58,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:56:58,431 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions. [2023-11-29 06:56:58,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 06:56:58,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:58,433 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:56:58,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 06:56:58,433 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:58,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:58,433 INFO L85 PathProgramCache]: Analyzing trace with hash -670288746, now seen corresponding path program 1 times [2023-11-29 06:56:58,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:58,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057641689] [2023-11-29 06:56:58,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:58,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:58,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:59,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:59,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:59,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:56:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:59,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:56:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:59,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:56:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:59,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:56:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:59,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 06:56:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:59,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 06:56:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:59,335 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 06:56:59,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:59,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057641689] [2023-11-29 06:56:59,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057641689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:59,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:59,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:56:59,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574420767] [2023-11-29 06:56:59,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:59,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:56:59,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:59,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:56:59,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:56:59,337 INFO L87 Difference]: Start difference. First operand 123 states and 136 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 5 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 06:56:59,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:59,694 INFO L93 Difference]: Finished difference Result 129 states and 141 transitions. [2023-11-29 06:56:59,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:56:59,695 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 5 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 61 [2023-11-29 06:56:59,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:59,696 INFO L225 Difference]: With dead ends: 129 [2023-11-29 06:56:59,696 INFO L226 Difference]: Without dead ends: 127 [2023-11-29 06:56:59,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:56:59,697 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 43 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:59,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 118 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:56:59,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-11-29 06:56:59,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2023-11-29 06:56:59,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 94 states have (on average 1.0851063829787233) internal successors, (102), 98 states have internal predecessors, (102), 17 states have call successors, (17), 12 states have call predecessors, (17), 15 states have return successors, (20), 16 states have call predecessors, (20), 16 states have call successors, (20) [2023-11-29 06:56:59,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 139 transitions. [2023-11-29 06:56:59,714 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 139 transitions. Word has length 61 [2023-11-29 06:56:59,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:59,714 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 139 transitions. [2023-11-29 06:56:59,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 5 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 06:56:59,715 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 139 transitions. [2023-11-29 06:56:59,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 06:56:59,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:59,716 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:56:59,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 06:56:59,716 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:59,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:59,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1520731777, now seen corresponding path program 1 times [2023-11-29 06:56:59,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:59,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796280372] [2023-11-29 06:56:59,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:59,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:57:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:01,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:57:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:01,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:57:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:01,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:57:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:01,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:57:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:01,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:57:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:01,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 06:57:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:01,673 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 06:57:01,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:57:01,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796280372] [2023-11-29 06:57:01,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796280372] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:57:01,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590253419] [2023-11-29 06:57:01,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:01,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:01,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:57:01,675 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:57:01,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:57:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:02,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 2480 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 06:57:02,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:57:02,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 1 [2023-11-29 06:57:03,050 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:57:03,050 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:57:03,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590253419] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:57:03,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:57:03,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 21 [2023-11-29 06:57:03,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208913233] [2023-11-29 06:57:03,263 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:57:03,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-29 06:57:03,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:57:03,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 06:57:03,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=560, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:57:03,265 INFO L87 Difference]: Start difference. First operand 127 states and 139 transitions. Second operand has 21 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 7 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2023-11-29 06:57:07,432 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 06:57:11,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:57:16,041 WARN L539 Checker$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 06:57:16,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:16,746 INFO L93 Difference]: Finished difference Result 284 states and 301 transitions. [2023-11-29 06:57:16,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 06:57:16,747 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 7 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 59 [2023-11-29 06:57:16,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:16,748 INFO L225 Difference]: With dead ends: 284 [2023-11-29 06:57:16,748 INFO L226 Difference]: Without dead ends: 199 [2023-11-29 06:57:16,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 77 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=189, Invalid=1001, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 06:57:16,749 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 187 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 33 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:16,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 296 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1023 Invalid, 3 Unknown, 0 Unchecked, 13.1s Time] [2023-11-29 06:57:16,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-29 06:57:16,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 127. [2023-11-29 06:57:16,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 96 states have (on average 1.0625) internal successors, (102), 98 states have internal predecessors, (102), 16 states have call successors, (16), 13 states have call predecessors, (16), 14 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-29 06:57:16,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 134 transitions. [2023-11-29 06:57:16,764 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 134 transitions. Word has length 59 [2023-11-29 06:57:16,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:16,764 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 134 transitions. [2023-11-29 06:57:16,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 7 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2023-11-29 06:57:16,765 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 134 transitions. [2023-11-29 06:57:16,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-29 06:57:16,765 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:16,765 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:57:16,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:57:16,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:16,966 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:57:16,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:16,966 INFO L85 PathProgramCache]: Analyzing trace with hash -66823228, now seen corresponding path program 1 times [2023-11-29 06:57:16,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:57:16,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531991482] [2023-11-29 06:57:16,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:16,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:57:17,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:17,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:57:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:17,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:57:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:17,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:57:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:17,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:57:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:17,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:57:17,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:17,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:57:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:17,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 06:57:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:17,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 06:57:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:17,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 06:57:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:17,873 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 06:57:17,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:57:17,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531991482] [2023-11-29 06:57:17,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531991482] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:57:17,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:57:17,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:57:17,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145086647] [2023-11-29 06:57:17,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:57:17,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:57:17,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:57:17,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:57:17,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:57:17,875 INFO L87 Difference]: Start difference. First operand 127 states and 134 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 06:57:18,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:18,236 INFO L93 Difference]: Finished difference Result 133 states and 139 transitions. [2023-11-29 06:57:18,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:57:18,236 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 67 [2023-11-29 06:57:18,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:18,237 INFO L225 Difference]: With dead ends: 133 [2023-11-29 06:57:18,237 INFO L226 Difference]: Without dead ends: 131 [2023-11-29 06:57:18,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:57:18,238 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 39 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:18,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 104 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:57:18,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-11-29 06:57:18,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2023-11-29 06:57:18,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 99 states have (on average 1.0606060606060606) internal successors, (105), 101 states have internal predecessors, (105), 16 states have call successors, (16), 14 states have call predecessors, (16), 15 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-29 06:57:18,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 137 transitions. [2023-11-29 06:57:18,257 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 137 transitions. Word has length 67 [2023-11-29 06:57:18,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:18,257 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 137 transitions. [2023-11-29 06:57:18,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 06:57:18,257 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 137 transitions. [2023-11-29 06:57:18,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 06:57:18,258 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:18,258 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:57:18,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 06:57:18,258 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:57:18,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:18,259 INFO L85 PathProgramCache]: Analyzing trace with hash -599646322, now seen corresponding path program 1 times [2023-11-29 06:57:18,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:57:18,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663142518] [2023-11-29 06:57:18,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:18,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:57:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:19,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:57:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:19,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:57:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:20,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:57:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:20,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:57:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:20,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:57:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:20,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:57:20,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:20,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 06:57:20,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:20,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 06:57:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:20,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 06:57:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:20,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 06:57:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:20,091 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-29 06:57:20,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:57:20,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663142518] [2023-11-29 06:57:20,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663142518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:57:20,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:57:20,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 06:57:20,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142314641] [2023-11-29 06:57:20,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:57:20,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:57:20,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:57:20,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:57:20,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:57:20,093 INFO L87 Difference]: Start difference. First operand 131 states and 137 transitions. Second operand has 12 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 5 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:57:20,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:20,683 INFO L93 Difference]: Finished difference Result 137 states and 142 transitions. [2023-11-29 06:57:20,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:57:20,684 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 5 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 74 [2023-11-29 06:57:20,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:20,685 INFO L225 Difference]: With dead ends: 137 [2023-11-29 06:57:20,685 INFO L226 Difference]: Without dead ends: 133 [2023-11-29 06:57:20,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:57:20,686 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 42 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:20,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 139 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:57:20,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-29 06:57:20,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2023-11-29 06:57:20,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 101 states have (on average 1.0495049504950495) internal successors, (106), 102 states have internal predecessors, (106), 16 states have call successors, (16), 15 states have call predecessors, (16), 15 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-29 06:57:20,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 138 transitions. [2023-11-29 06:57:20,705 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 138 transitions. Word has length 74 [2023-11-29 06:57:20,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:20,705 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 138 transitions. [2023-11-29 06:57:20,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 5 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:57:20,705 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 138 transitions. [2023-11-29 06:57:20,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 06:57:20,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:20,706 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 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] [2023-11-29 06:57:20,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 06:57:20,707 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:57:20,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:20,707 INFO L85 PathProgramCache]: Analyzing trace with hash -729094973, now seen corresponding path program 1 times [2023-11-29 06:57:20,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:57:20,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897467491] [2023-11-29 06:57:20,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:20,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:57:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:22,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:57:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:22,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:57:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:22,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:57:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:22,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:57:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:22,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:57:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:22,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:57:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:22,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 06:57:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:22,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 06:57:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:22,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 06:57:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:22,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 06:57:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:22,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 06:57:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:22,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 06:57:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:22,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 06:57:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:22,416 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 06:57:22,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:57:22,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897467491] [2023-11-29 06:57:22,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897467491] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:57:22,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695860065] [2023-11-29 06:57:22,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:22,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:22,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:57:22,417 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:57:22,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:57:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:22,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 2570 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 06:57:22,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:57:22,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 06:57:23,941 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 39 proven. 9 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-29 06:57:23,941 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:57:24,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695860065] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:57:24,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:57:24,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 22 [2023-11-29 06:57:24,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367825603] [2023-11-29 06:57:24,124 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:57:24,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 06:57:24,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:57:24,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 06:57:24,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2023-11-29 06:57:24,126 INFO L87 Difference]: Start difference. First operand 133 states and 138 transitions. Second operand has 22 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 9 states have call successors, (26), 4 states have call predecessors, (26), 6 states have return successors, (25), 8 states have call predecessors, (25), 9 states have call successors, (25) [2023-11-29 06:57:25,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:25,681 INFO L93 Difference]: Finished difference Result 214 states and 219 transitions. [2023-11-29 06:57:25,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 06:57:25,682 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 9 states have call successors, (26), 4 states have call predecessors, (26), 6 states have return successors, (25), 8 states have call predecessors, (25), 9 states have call successors, (25) Word has length 90 [2023-11-29 06:57:25,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:25,683 INFO L225 Difference]: With dead ends: 214 [2023-11-29 06:57:25,683 INFO L226 Difference]: Without dead ends: 102 [2023-11-29 06:57:25,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 157 SyntacticMatches, 11 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=257, Invalid=1303, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 06:57:25,685 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 135 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:25,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 241 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:57:25,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-29 06:57:25,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 99. [2023-11-29 06:57:25,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 72 states have (on average 1.0138888888888888) internal successors, (73), 72 states have internal predecessors, (73), 14 states have call successors, (14), 13 states have call predecessors, (14), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 06:57:25,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 100 transitions. [2023-11-29 06:57:25,704 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 100 transitions. Word has length 90 [2023-11-29 06:57:25,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:25,704 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 100 transitions. [2023-11-29 06:57:25,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 9 states have call successors, (26), 4 states have call predecessors, (26), 6 states have return successors, (25), 8 states have call predecessors, (25), 9 states have call successors, (25) [2023-11-29 06:57:25,704 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 100 transitions. [2023-11-29 06:57:25,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 06:57:25,705 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:25,705 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 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] [2023-11-29 06:57:25,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 06:57:25,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 06:57:25,905 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:57:25,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:25,906 INFO L85 PathProgramCache]: Analyzing trace with hash 394806358, now seen corresponding path program 1 times [2023-11-29 06:57:25,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:57:25,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921412772] [2023-11-29 06:57:25,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:25,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:57:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:26,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:57:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:26,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:57:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:26,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:57:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:26,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:57:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:26,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:57:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:26,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 06:57:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:26,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 06:57:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:26,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 06:57:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:26,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 06:57:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:26,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 06:57:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:26,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 06:57:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:26,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 06:57:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:26,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 06:57:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:26,141 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-11-29 06:57:26,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:57:26,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921412772] [2023-11-29 06:57:26,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921412772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:57:26,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:57:26,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:57:26,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949541398] [2023-11-29 06:57:26,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:57:26,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:57:26,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:57:26,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:57:26,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:57:26,142 INFO L87 Difference]: Start difference. First operand 99 states and 100 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:57:26,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:26,316 INFO L93 Difference]: Finished difference Result 148 states and 148 transitions. [2023-11-29 06:57:26,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:57:26,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 96 [2023-11-29 06:57:26,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:26,317 INFO L225 Difference]: With dead ends: 148 [2023-11-29 06:57:26,317 INFO L226 Difference]: Without dead ends: 99 [2023-11-29 06:57:26,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:57:26,318 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 40 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:26,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 98 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:57:26,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-29 06:57:26,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-11-29 06:57:26,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 72 states have (on average 1.0) internal successors, (72), 72 states have internal predecessors, (72), 14 states have call successors, (14), 13 states have call predecessors, (14), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 06:57:26,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 99 transitions. [2023-11-29 06:57:26,332 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 99 transitions. Word has length 96 [2023-11-29 06:57:26,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:26,332 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 99 transitions. [2023-11-29 06:57:26,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:57:26,332 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2023-11-29 06:57:26,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 06:57:26,333 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:26,333 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:57:26,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 06:57:26,333 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:57:26,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:26,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1082716957, now seen corresponding path program 1 times [2023-11-29 06:57:26,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:57:26,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827651183] [2023-11-29 06:57:26,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:26,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:57:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:28,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:57:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:28,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:57:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:28,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:57:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:28,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:57:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:28,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:57:28,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:28,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 06:57:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:28,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 06:57:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:28,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 06:57:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:28,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 06:57:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:28,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 06:57:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:28,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 06:57:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:28,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 06:57:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:28,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 06:57:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:28,742 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 06:57:28,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:57:28,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827651183] [2023-11-29 06:57:28,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827651183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:57:28,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:57:28,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 06:57:28,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301144539] [2023-11-29 06:57:28,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:57:28,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:57:28,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:57:28,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:57:28,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:57:28,744 INFO L87 Difference]: Start difference. First operand 99 states and 99 transitions. Second operand has 13 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 6 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:57:29,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:29,314 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2023-11-29 06:57:29,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:57:29,314 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 6 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 102 [2023-11-29 06:57:29,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:29,314 INFO L225 Difference]: With dead ends: 99 [2023-11-29 06:57:29,314 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 06:57:29,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:57:29,315 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 38 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:29,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 155 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:57:29,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 06:57:29,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 06:57:29,316 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 06:57:29,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 06:57:29,316 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2023-11-29 06:57:29,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:29,316 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 06:57:29,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 6 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:57:29,317 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 06:57:29,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 06:57:29,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 06:57:29,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 06:57:29,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 06:57:32,313 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 6882 6887) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2023-11-29 06:57:32,314 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2023-11-29 06:57:32,314 INFO L899 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2023-11-29 06:57:32,314 INFO L895 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2023-11-29 06:57:32,314 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2023-11-29 06:57:32,314 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 266) the Hoare annotation is: true [2023-11-29 06:57:32,314 INFO L899 garLoopResultBuilder]: For program point L7377-3(line 7377) no Hoare annotation was computed. [2023-11-29 06:57:32,314 INFO L899 garLoopResultBuilder]: For program point L7377-1(line 7377) no Hoare annotation was computed. [2023-11-29 06:57:32,314 INFO L899 garLoopResultBuilder]: For program point L7377(lines 7377 7380) no Hoare annotation was computed. [2023-11-29 06:57:32,314 INFO L899 garLoopResultBuilder]: For program point L7377-7(lines 7377 7380) no Hoare annotation was computed. [2023-11-29 06:57:32,314 INFO L899 garLoopResultBuilder]: For program point L7377-6(lines 7377 7378) no Hoare annotation was computed. [2023-11-29 06:57:32,314 INFO L899 garLoopResultBuilder]: For program point L7377-4(lines 7377 7378) no Hoare annotation was computed. [2023-11-29 06:57:32,314 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7375 7381) the Hoare annotation is: true [2023-11-29 06:57:32,315 INFO L899 garLoopResultBuilder]: For program point L7377-11(lines 7377 7380) no Hoare annotation was computed. [2023-11-29 06:57:32,315 INFO L899 garLoopResultBuilder]: For program point L7377-9(lines 7377 7380) no Hoare annotation was computed. [2023-11-29 06:57:32,315 INFO L899 garLoopResultBuilder]: For program point aws_byte_buf_is_validEXIT(lines 7375 7381) no Hoare annotation was computed. [2023-11-29 06:57:32,315 INFO L899 garLoopResultBuilder]: For program point L7380-2(line 7380) no Hoare annotation was computed. [2023-11-29 06:57:32,315 INFO L899 garLoopResultBuilder]: For program point L7380(line 7380) no Hoare annotation was computed. [2023-11-29 06:57:32,315 INFO L899 garLoopResultBuilder]: For program point L7380-6(line 7380) no Hoare annotation was computed. [2023-11-29 06:57:32,315 INFO L899 garLoopResultBuilder]: For program point L7380-4(line 7380) no Hoare annotation was computed. [2023-11-29 06:57:32,315 INFO L899 garLoopResultBuilder]: For program point L7380-3(line 7380) no Hoare annotation was computed. [2023-11-29 06:57:32,315 INFO L899 garLoopResultBuilder]: For program point L7380-8(line 7380) no Hoare annotation was computed. [2023-11-29 06:57:32,315 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2023-11-29 06:57:32,315 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 210 212) the Hoare annotation is: true [2023-11-29 06:57:32,315 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2023-11-29 06:57:32,315 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2023-11-29 06:57:32,315 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 06:57:32,315 INFO L899 garLoopResultBuilder]: For program point L7106-1(line 7106) no Hoare annotation was computed. [2023-11-29 06:57:32,316 INFO L899 garLoopResultBuilder]: For program point L8219-1(line 8219) no Hoare annotation was computed. [2023-11-29 06:57:32,316 INFO L895 garLoopResultBuilder]: At program point L8219(line 8219) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~capacity#1| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0)) [2023-11-29 06:57:32,316 INFO L899 garLoopResultBuilder]: For program point L7100-1(lines 7099 7112) no Hoare annotation was computed. [2023-11-29 06:57:32,316 INFO L895 garLoopResultBuilder]: At program point L7100(line 7100) the Hoare annotation is: (let ((.cse7 (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse5 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 8))) (let ((.cse0 (select .cse7 .cse5))) (let ((.cse3 (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse2 (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse1 (and (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|))) (.cse4 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 24))) (and (= |ULTIMATE.start_assert_bytes_match_~b#1.offset| 0) (or (= .cse0 0) .cse1) (= (select .cse2 16) |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (= (select .cse3 .cse4) 0) (= 0 (select .cse3 .cse5)) (= (select .cse2 0) 0) (or (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1| Int)) (and (<= 1 (mod (select (select |#memory_int#4| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 16) 18446744073709551616)) (= (select (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 24) 0))) (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1| Int)) (let ((.cse6 (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|))) (and (= 0 (select (select |#memory_$Pointer$#4.offset| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 8)) (= 0 (select .cse6 8)) (= (select .cse6 24) 0))))) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_assert_bytes_match_~b#1.base| |ULTIMATE.start_assert_bytes_match_~a#1.base|) (or .cse1 (and (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~mem1220#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~mem1220#1.base| 0))) (= (select .cse7 .cse4) 0) (= |ULTIMATE.start_assert_bytes_match_~a#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))))) [2023-11-29 06:57:32,316 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 06:57:32,317 INFO L895 garLoopResultBuilder]: At program point L8230(line 8230) the Hoare annotation is: (let ((.cse4 (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base|))) (let ((.cse0 (select .cse4 8)) (.cse5 (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base|))) (let ((.cse3 (select .cse5 16)) (.cse1 (= .cse0 0)) (.cse2 (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base|))) (and (or (= .cse0 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) .cse1) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base| 0)) (= (select .cse2 24) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1| .cse3) (= (select .cse4 24) 0) (= (select .cse5 0) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) (or (< 0 (mod .cse3 18446744073709551616)) .cse1) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~capacity#1| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (= (select .cse2 8) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))))) [2023-11-29 06:57:32,317 INFO L902 garLoopResultBuilder]: At program point L8963(line 8963) the Hoare annotation is: true [2023-11-29 06:57:32,317 INFO L899 garLoopResultBuilder]: For program point L8963-1(line 8963) no Hoare annotation was computed. [2023-11-29 06:57:32,318 INFO L895 garLoopResultBuilder]: At program point L8969(lines 8969 8971) the Hoare annotation is: (let ((.cse4 (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse2 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 8)) (.cse3 (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse1 (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse5 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 24))) (and (let ((.cse0 (select .cse1 .cse2))) (or (= .cse0 0) (and (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|)))) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~mem1219#1.offset| 0) (= (select .cse3 16) |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (= (select .cse4 .cse5) 0) (= 0 (select .cse4 .cse2)) (= (select .cse3 0) 0) (or (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1| Int)) (and (<= 1 (mod (select (select |#memory_int#4| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 16) 18446744073709551616)) (= (select (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 24) 0))) (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1| Int)) (let ((.cse6 (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|))) (and (= 0 (select (select |#memory_$Pointer$#4.offset| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 8)) (= 0 (select .cse6 8)) (= (select .cse6 24) 0))))) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~mem1219#1.base| 0) (= (select .cse1 .cse5) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))) [2023-11-29 06:57:32,318 INFO L899 garLoopResultBuilder]: For program point L7107-1(lines 7107 7109) no Hoare annotation was computed. [2023-11-29 06:57:32,318 INFO L899 garLoopResultBuilder]: For program point L8969-1(lines 8969 8971) no Hoare annotation was computed. [2023-11-29 06:57:32,318 INFO L895 garLoopResultBuilder]: At program point L7107(lines 7107 7109) the Hoare annotation is: (let ((.cse7 (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse5 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 8))) (let ((.cse0 (select .cse7 .cse5))) (let ((.cse3 (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse2 (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse1 (and (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|))) (.cse4 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 24))) (and (= |ULTIMATE.start_assert_bytes_match_~b#1.offset| 0) (or (= .cse0 0) .cse1) (= (select .cse2 16) |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (= (select .cse3 .cse4) 0) (= 0 (select .cse3 .cse5)) (= (select .cse2 0) 0) (or (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1| Int)) (and (<= 1 (mod (select (select |#memory_int#4| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 16) 18446744073709551616)) (= (select (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 24) 0))) (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1| Int)) (let ((.cse6 (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|))) (and (= 0 (select (select |#memory_$Pointer$#4.offset| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 8)) (= 0 (select .cse6 8)) (= (select .cse6 24) 0))))) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_assert_bytes_match_~b#1.base| |ULTIMATE.start_assert_bytes_match_~a#1.base|) (or .cse1 (and (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~mem1220#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~mem1220#1.base| 0))) (= (select .cse7 .cse4) 0) (= |ULTIMATE.start_assert_bytes_match_~a#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))))) [2023-11-29 06:57:32,319 INFO L899 garLoopResultBuilder]: For program point L8230-2(line 8230) no Hoare annotation was computed. [2023-11-29 06:57:32,319 INFO L895 garLoopResultBuilder]: At program point L8967(line 8967) the Hoare annotation is: (let ((.cse4 (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse2 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 8)) (.cse3 (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse1 (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse5 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 24))) (and (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~mem1217#1| 0) (let ((.cse0 (select .cse1 .cse2))) (or (= .cse0 0) (and (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|)))) (= (select .cse3 16) |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (= (select .cse4 .cse5) 0) (= 0 (select .cse4 .cse2)) (= (select .cse3 0) 0) (or (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1| Int)) (and (<= 1 (mod (select (select |#memory_int#4| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 16) 18446744073709551616)) (= (select (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 24) 0))) (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1| Int)) (let ((.cse6 (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|))) (and (= 0 (select (select |#memory_$Pointer$#4.offset| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 8)) (= 0 (select .cse6 8)) (= (select .cse6 24) 0))))) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (= (select .cse1 .cse5) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))) [2023-11-29 06:57:32,320 INFO L895 garLoopResultBuilder]: At program point L8230-1(line 8230) the Hoare annotation is: (let ((.cse17 (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base|))) (let ((.cse16 (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base|)) (.cse0 (select .cse17 16)) (.cse15 (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base|))) (let ((.cse1 (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base| 0))) (.cse2 (= (select .cse15 24) 0)) (.cse3 (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1| .cse0)) (.cse4 (= (select .cse16 24) 0)) (.cse5 (= (select .cse17 0) 0)) (.cse6 (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|)) (.cse8 (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0))) (.cse9 (= |ULTIMATE.start_aws_byte_buf_from_empty_array_#t~ret1060#1| 1)) (.cse10 (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~capacity#1| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|)) (.cse7 (select .cse16 8)) (.cse11 (= (select .cse15 8) 0)) (.cse12 (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.offset| 0)) (.cse13 (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.offset| 0)) (.cse14 (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))) (or (and (< 0 (mod .cse0 18446744073709551616)) .cse1 .cse2 .cse3 .cse4 .cse5 (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) .cse6 (= .cse7 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse8 .cse9 .cse10 (= .cse7 0) .cse11 .cse12 .cse13 .cse14))))) [2023-11-29 06:57:32,320 INFO L899 garLoopResultBuilder]: For program point L8967-1(line 8967) no Hoare annotation was computed. [2023-11-29 06:57:32,320 INFO L899 garLoopResultBuilder]: For program point L7099(lines 7099 7112) no Hoare annotation was computed. [2023-11-29 06:57:32,320 INFO L899 garLoopResultBuilder]: For program point L8972(lines 8972 8974) no Hoare annotation was computed. [2023-11-29 06:57:32,320 INFO L899 garLoopResultBuilder]: For program point L8972-2(lines 8972 8974) no Hoare annotation was computed. [2023-11-29 06:57:32,320 INFO L895 garLoopResultBuilder]: At program point L8966-1(line 8966) the Hoare annotation is: (let ((.cse4 (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse2 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 8)) (.cse3 (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse1 (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse5 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 24))) (and (let ((.cse0 (select .cse1 .cse2))) (or (= .cse0 0) (and (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|)))) (= (select .cse3 16) |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (= (select .cse4 .cse5) 0) (= 0 (select .cse4 .cse2)) (= (select .cse3 0) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~ret1216#1| 1) (or (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1| Int)) (and (<= 1 (mod (select (select |#memory_int#4| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 16) 18446744073709551616)) (= (select (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 24) 0))) (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1| Int)) (let ((.cse6 (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|))) (and (= 0 (select (select |#memory_$Pointer$#4.offset| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 8)) (= 0 (select .cse6 8)) (= (select .cse6 24) 0))))) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (= (select .cse1 .cse5) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))) [2023-11-29 06:57:32,321 INFO L895 garLoopResultBuilder]: At program point L7110(line 7110) the Hoare annotation is: (let ((.cse7 (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse5 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 8))) (let ((.cse0 (select .cse7 .cse5))) (let ((.cse3 (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse2 (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse1 (and (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|))) (.cse4 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 24))) (and (= |ULTIMATE.start_assert_bytes_match_~b#1.offset| 0) (or (= .cse0 0) .cse1) (= (select .cse2 16) |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (= (select .cse3 .cse4) 0) (= 0 (select .cse3 .cse5)) (= (select .cse2 0) 0) (or (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1| Int)) (and (<= 1 (mod (select (select |#memory_int#4| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 16) 18446744073709551616)) (= (select (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 24) 0))) (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1| Int)) (let ((.cse6 (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|))) (and (= 0 (select (select |#memory_$Pointer$#4.offset| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 8)) (= 0 (select .cse6 8)) (= (select .cse6 24) 0))))) (= |ULTIMATE.start_assert_bytes_match_#t~mem594#1| |ULTIMATE.start_assert_bytes_match_#t~mem593#1|) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_assert_bytes_match_~b#1.base| |ULTIMATE.start_assert_bytes_match_~a#1.base|) (or .cse1 (and (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~mem1220#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~mem1220#1.base| 0))) (= (select .cse7 .cse4) 0) (= |ULTIMATE.start_assert_bytes_match_~a#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))))) [2023-11-29 06:57:32,321 INFO L899 garLoopResultBuilder]: For program point L8966-2(line 8966) no Hoare annotation was computed. [2023-11-29 06:57:32,321 INFO L895 garLoopResultBuilder]: At program point L7106(line 7106) the Hoare annotation is: (let ((.cse7 (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse5 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 8))) (let ((.cse0 (select .cse7 .cse5))) (let ((.cse3 (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse2 (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse1 (and (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|))) (.cse4 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 24))) (and (= |ULTIMATE.start_assert_bytes_match_~b#1.offset| 0) (or (= .cse0 0) .cse1) (= (select .cse2 16) |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (= (select .cse3 .cse4) 0) (= 0 (select .cse3 .cse5)) (= (select .cse2 0) 0) (or (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1| Int)) (and (<= 1 (mod (select (select |#memory_int#4| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 16) 18446744073709551616)) (= (select (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 24) 0))) (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1| Int)) (let ((.cse6 (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|))) (and (= 0 (select (select |#memory_$Pointer$#4.offset| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 8)) (= 0 (select .cse6 8)) (= (select .cse6 24) 0))))) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_assert_bytes_match_~b#1.base| |ULTIMATE.start_assert_bytes_match_~a#1.base|) (or .cse1 (and (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~mem1220#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~mem1220#1.base| 0))) (= (select .cse7 .cse4) 0) (= |ULTIMATE.start_assert_bytes_match_~a#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))))) [2023-11-29 06:57:32,322 INFO L895 garLoopResultBuilder]: At program point L8968(line 8968) the Hoare annotation is: (let ((.cse4 (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse2 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 8)) (.cse3 (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse1 (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse5 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 24))) (and (let ((.cse0 (select .cse1 .cse2))) (or (= .cse0 0) (and (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|)))) (= (select .cse3 16) |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (= (select .cse4 .cse5) 0) (= 0 (select .cse4 .cse2)) (= (select .cse3 0) 0) (or (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1| Int)) (and (<= 1 (mod (select (select |#memory_int#4| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 16) 18446744073709551616)) (= (select (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 24) 0))) (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1| Int)) (let ((.cse6 (select |#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|))) (and (= 0 (select (select |#memory_$Pointer$#4.offset| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_BEFORE_CALL_1|) 8)) (= 0 (select .cse6 8)) (= (select .cse6 24) 0))))) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~mem1218#1| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (= (select .cse1 .cse5) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))) [2023-11-29 06:57:32,322 INFO L899 garLoopResultBuilder]: For program point L8968-1(line 8968) no Hoare annotation was computed. [2023-11-29 06:57:32,322 INFO L895 garLoopResultBuilder]: At program point L8966(line 8966) the Hoare annotation is: (let ((.cse9 (select |#memory_int#4| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|))) (let ((.cse8 (select .cse9 16))) (let ((.cse1 (= .cse8 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|)) (.cse3 (select |#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse2 (= (select .cse9 0) 0)) (.cse4 (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0))) (.cse0 (select |#memory_$Pointer$#4.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse5 (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))) (or (and (= (select .cse0 8) 0) .cse1 .cse2 (= (select .cse0 24) 0) (= (select .cse3 8) 0) .cse4 (= (select .cse3 24) 0) .cse5) (let ((.cse6 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 8)) (.cse7 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 24))) (and (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= (select .cse0 .cse6) |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) .cse1 (= (select .cse3 .cse7) 0) (<= .cse8 (+ 18446744073709551615 (* 18446744073709551616 (div (+ .cse8 (- 1)) 18446744073709551616)))) (= 0 (select .cse3 .cse6)) .cse2 .cse4 (= (select .cse0 .cse7) 0) .cse5)))))) [2023-11-29 06:57:32,322 INFO L899 garLoopResultBuilder]: For program point L7110-1(line 7110) no Hoare annotation was computed. [2023-11-29 06:57:32,322 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2023-11-29 06:57:32,322 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2023-11-29 06:57:32,322 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2023-11-29 06:57:32,322 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2023-11-29 06:57:32,322 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 222 224) the Hoare annotation is: true [2023-11-29 06:57:32,322 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2023-11-29 06:57:32,324 INFO L445 BasicCegarLoop]: Path program histogram: [1, 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 06:57:32,325 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:57:32,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:57:32 BoogieIcfgContainer [2023-11-29 06:57:32,329 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:57:32,330 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:57:32,330 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:57:32,330 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:57:32,331 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:56:25" (3/4) ... [2023-11-29 06:57:32,332 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 06:57:32,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2023-11-29 06:57:32,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2023-11-29 06:57:32,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_byte_buf_is_valid [2023-11-29 06:57:32,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-29 06:57:32,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-29 06:57:32,349 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 121 nodes and edges [2023-11-29 06:57:32,351 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 56 nodes and edges [2023-11-29 06:57:32,352 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-11-29 06:57:32,353 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-29 06:57:32,354 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-29 06:57:32,355 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 06:57:32,356 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-29 06:57:32,357 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 06:57:33,019 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 06:57:33,019 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 06:57:33,019 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:57:33,020 INFO L158 Benchmark]: Toolchain (without parser) took 71807.20ms. Allocated memory was 136.3MB in the beginning and 790.6MB in the end (delta: 654.3MB). Free memory was 82.3MB in the beginning and 718.2MB in the end (delta: -636.0MB). Peak memory consumption was 201.4MB. Max. memory is 16.1GB. [2023-11-29 06:57:33,020 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 136.3MB. Free memory was 109.2MB in the beginning and 109.1MB in the end (delta: 159.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:57:33,021 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2466.19ms. Allocated memory was 136.3MB in the beginning and 195.0MB in the end (delta: 58.7MB). Free memory was 81.8MB in the beginning and 139.3MB in the end (delta: -57.5MB). Peak memory consumption was 83.5MB. Max. memory is 16.1GB. [2023-11-29 06:57:33,021 INFO L158 Benchmark]: Boogie Procedure Inliner took 145.72ms. Allocated memory is still 195.0MB. Free memory was 139.3MB in the beginning and 127.7MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 06:57:33,021 INFO L158 Benchmark]: Boogie Preprocessor took 152.08ms. Allocated memory is still 195.0MB. Free memory was 127.7MB in the beginning and 115.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 06:57:33,022 INFO L158 Benchmark]: RCFGBuilder took 1289.91ms. Allocated memory was 195.0MB in the beginning and 255.9MB in the end (delta: 60.8MB). Free memory was 115.1MB in the beginning and 162.0MB in the end (delta: -46.9MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. [2023-11-29 06:57:33,022 INFO L158 Benchmark]: TraceAbstraction took 67056.88ms. Allocated memory was 255.9MB in the beginning and 790.6MB in the end (delta: 534.8MB). Free memory was 160.9MB in the beginning and 668.4MB in the end (delta: -507.4MB). Peak memory consumption was 442.6MB. Max. memory is 16.1GB. [2023-11-29 06:57:33,022 INFO L158 Benchmark]: Witness Printer took 689.46ms. Allocated memory is still 790.6MB. Free memory was 668.4MB in the beginning and 718.2MB in the end (delta: -49.9MB). Peak memory consumption was 130.0MB. Max. memory is 16.1GB. [2023-11-29 06:57:33,024 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 136.3MB. Free memory was 109.2MB in the beginning and 109.1MB in the end (delta: 159.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2466.19ms. Allocated memory was 136.3MB in the beginning and 195.0MB in the end (delta: 58.7MB). Free memory was 81.8MB in the beginning and 139.3MB in the end (delta: -57.5MB). Peak memory consumption was 83.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 145.72ms. Allocated memory is still 195.0MB. Free memory was 139.3MB in the beginning and 127.7MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 152.08ms. Allocated memory is still 195.0MB. Free memory was 127.7MB in the beginning and 115.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1289.91ms. Allocated memory was 195.0MB in the beginning and 255.9MB in the end (delta: 60.8MB). Free memory was 115.1MB in the beginning and 162.0MB in the end (delta: -46.9MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. * TraceAbstraction took 67056.88ms. Allocated memory was 255.9MB in the beginning and 790.6MB in the end (delta: 534.8MB). Free memory was 160.9MB in the beginning and 668.4MB in the end (delta: -507.4MB). Peak memory consumption was 442.6MB. Max. memory is 16.1GB. * Witness Printer took 689.46ms. Allocated memory is still 790.6MB. Free memory was 668.4MB in the beginning and 718.2MB in the end (delta: -49.9MB). Peak memory consumption was 130.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 8269]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] - GenericResultAtLocation [Line: 8755]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] * 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 6 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.0s, OverallIterations: 25, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 26.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 2133 SdHoareTripleChecker+Valid, 22.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2011 mSDsluCounter, 3710 SdHoareTripleChecker+Invalid, 21.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2849 mSDsCounter, 432 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9990 IncrementalHoareTripleChecker+Invalid, 10425 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 432 mSolverCounterUnsat, 861 mSDtfsCounter, 9990 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1020 GetRequests, 642 SyntacticMatches, 19 SemanticMatches, 359 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1287 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=22, InterpolantAutomatonStates: 252, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 25 MinimizatonAttempts, 246 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 182 PreInvPairs, 202 NumberOfFragments, 1465 HoareAnnotationTreeSize, 182 FomulaSimplifications, 1793 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 19 FomulaSimplificationsInter, 14585 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 4.7s SatisfiabilityAnalysisTime, 29.6s InterpolantComputationTime, 1543 NumberOfCodeBlocks, 1543 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 1514 ConstructedInterpolants, 89 QuantifiedInterpolants, 10326 SizeOfPredicates, 50 NumberOfNonLiveVariables, 9923 ConjunctsInSsa, 148 ConjunctsInUnsatCore, 29 InterpolantComputations, 22 PerfectInterpolantSequences, 699/752 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 RESULT: Ultimate proved your program to be correct! [2023-11-29 06:57:33,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370ff553-f610-44ed-8e9a-5805bd20ecc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE