./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu --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 f3174b0caf7483d7aa96d2ace1d661f4c70bbed9301f1108659fc7d611ebd9af --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:01:09,086 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:01:09,222 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 08:01:09,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:01:09,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:01:09,262 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:01:09,263 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:01:09,263 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:01:09,264 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:01:09,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:01:09,265 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:01:09,266 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:01:09,267 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:01:09,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:01:09,268 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:01:09,268 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:01:09,269 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:01:09,270 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:01:09,270 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:01:09,271 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:01:09,271 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:01:09,272 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:01:09,273 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:01:09,273 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:01:09,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:01:09,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:01:09,275 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:01:09,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:01:09,276 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:01:09,276 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:01:09,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:01:09,277 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:01:09,277 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:01:09,277 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:01:09,278 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:01:09,278 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:01:09,278 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_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3174b0caf7483d7aa96d2ace1d661f4c70bbed9301f1108659fc7d611ebd9af [2023-11-19 08:01:09,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:01:09,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:01:09,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:01:09,666 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:01:09,666 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:01:09,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness_negated.i [2023-11-19 08:01:12,663 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:01:13,318 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:01:13,318 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness_negated.i [2023-11-19 08:01:13,369 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/data/75158cd68/d87b93a36e3441c18572e4d7897dcf96/FLAG6158dc538 [2023-11-19 08:01:13,386 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/data/75158cd68/d87b93a36e3441c18572e4d7897dcf96 [2023-11-19 08:01:13,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:01:13,396 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:01:13,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:01:13,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:01:13,407 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:01:13,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:13" (1/1) ... [2023-11-19 08:01:13,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b19ddad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:13, skipping insertion in model container [2023-11-19 08:01:13,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:13" (1/1) ... [2023-11-19 08:01:13,548 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:01:13,934 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_eed26da0-576c-4e35-86fa-dd2a6fab7e25/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness_negated.i[4493,4506] [2023-11-19 08:01:13,943 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_eed26da0-576c-4e35-86fa-dd2a6fab7e25/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness_negated.i[4553,4566] [2023-11-19 08:01:14,946 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:14,958 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:14,959 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:14,960 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:14,961 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:14,977 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:14,977 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:14,980 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:14,980 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:15,415 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-19 08:01:15,425 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-19 08:01:15,426 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-19 08:01:15,432 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-19 08:01:15,436 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-19 08:01:15,440 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-19 08:01:15,441 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-19 08:01:15,441 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-19 08:01:15,442 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-19 08:01:15,445 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-19 08:01:15,771 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:15,771 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:15,809 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:01:15,877 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:01:15,904 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_eed26da0-576c-4e35-86fa-dd2a6fab7e25/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness_negated.i[4493,4506] [2023-11-19 08:01:15,905 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_eed26da0-576c-4e35-86fa-dd2a6fab7e25/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness_negated.i[4553,4566] [2023-11-19 08:01:15,973 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:15,973 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:15,974 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:15,974 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:15,975 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:15,985 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:15,985 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:15,986 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:15,987 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:16,020 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-19 08:01:16,021 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-19 08:01:16,022 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-19 08:01:16,023 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-19 08:01:16,024 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-19 08:01:16,025 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-19 08:01:16,025 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-19 08:01:16,026 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-19 08:01:16,026 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-19 08:01:16,027 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-19 08:01:16,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8556] [2023-11-19 08:01:16,228 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:16,229 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 08:01:16,254 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:01:16,536 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:16,536 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:16,536 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:16,538 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:16,538 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:16,539 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:16,539 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:16,539 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:16,539 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:16,539 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:16,540 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:16,540 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:16,540 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:16,541 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:16,542 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:16,542 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:16,542 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:01:16,550 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:01:16,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:16 WrapperNode [2023-11-19 08:01:16,552 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:01:16,553 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:01:16,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:01:16,554 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:01:16,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:16" (1/1) ... [2023-11-19 08:01:16,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:16" (1/1) ... [2023-11-19 08:01:16,758 INFO L138 Inliner]: procedures = 680, calls = 2274, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 390 [2023-11-19 08:01:16,758 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:01:16,759 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:01:16,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:01:16,759 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:01:16,769 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:16" (1/1) ... [2023-11-19 08:01:16,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:16" (1/1) ... [2023-11-19 08:01:16,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:16" (1/1) ... [2023-11-19 08:01:16,775 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:16" (1/1) ... [2023-11-19 08:01:16,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:16" (1/1) ... [2023-11-19 08:01:16,801 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:16" (1/1) ... [2023-11-19 08:01:16,806 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:16" (1/1) ... [2023-11-19 08:01:16,810 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:16" (1/1) ... [2023-11-19 08:01:16,817 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:01:16,818 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:01:16,819 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:01:16,819 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:01:16,820 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:16" (1/1) ... [2023-11-19 08:01:16,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:01:16,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:16,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:16,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:01:16,914 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2023-11-19 08:01:16,914 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2023-11-19 08:01:16,914 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2023-11-19 08:01:16,915 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2023-11-19 08:01:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2023-11-19 08:01:16,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2023-11-19 08:01:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-19 08:01:16,915 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-19 08:01:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:01:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 08:01:16,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 08:01:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:01:16,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:01:16,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 08:01:16,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:01:16,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:01:16,919 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-19 08:01:16,919 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-19 08:01:16,920 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:01:16,920 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:01:16,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 08:01:16,920 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-19 08:01:16,920 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-19 08:01:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-19 08:01:16,921 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-19 08:01:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:01:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:01:17,232 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:01:17,235 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:01:17,650 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:01:17,682 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:01:17,682 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:01:17,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:17 BoogieIcfgContainer [2023-11-19 08:01:17,687 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:01:17,689 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:01:17,690 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:01:17,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:01:17,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:01:13" (1/3) ... [2023-11-19 08:01:17,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214a815e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:17, skipping insertion in model container [2023-11-19 08:01:17,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:16" (2/3) ... [2023-11-19 08:01:17,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214a815e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:17, skipping insertion in model container [2023-11-19 08:01:17,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:17" (3/3) ... [2023-11-19 08:01:17,696 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_eq_c_str_harness_negated.i [2023-11-19 08:01:17,722 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:01:17,722 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:01:17,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:01:17,780 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;@7bd96bbd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:01:17,780 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:01:17,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 71 states have internal predecessors, (87), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-19 08:01:17,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 08:01:17,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:17,796 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-19 08:01:17,797 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:17,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:17,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1676862830, now seen corresponding path program 1 times [2023-11-19 08:01:17,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:17,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331298445] [2023-11-19 08:01:17,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:17,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:18,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:01:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:18,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 08:01:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:18,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 08:01:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:18,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 08:01:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:18,452 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 08:01:18,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:18,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331298445] [2023-11-19 08:01:18,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331298445] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:18,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:18,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:01:18,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994342965] [2023-11-19 08:01:18,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:18,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:01:18,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:18,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:01:18,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:01:18,511 INFO L87 Difference]: Start difference. First operand has 107 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 71 states have internal predecessors, (87), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:01:18,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:18,550 INFO L93 Difference]: Finished difference Result 205 states and 281 transitions. [2023-11-19 08:01:18,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:01:18,553 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 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 [2023-11-19 08:01:18,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:18,562 INFO L225 Difference]: With dead ends: 205 [2023-11-19 08:01:18,563 INFO L226 Difference]: Without dead ends: 101 [2023-11-19 08:01:18,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:01:18,571 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:18,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:18,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-19 08:01:18,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-11-19 08:01:18,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 66 states have internal predecessors, (77), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 08:01:18,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 128 transitions. [2023-11-19 08:01:18,644 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 128 transitions. Word has length 36 [2023-11-19 08:01:18,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:18,645 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 128 transitions. [2023-11-19 08:01:18,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:01:18,646 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 128 transitions. [2023-11-19 08:01:18,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 08:01:18,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:18,650 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-19 08:01:18,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:01:18,650 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:18,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:18,651 INFO L85 PathProgramCache]: Analyzing trace with hash -12080912, now seen corresponding path program 1 times [2023-11-19 08:01:18,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:18,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866333455] [2023-11-19 08:01:18,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:18,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:19,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:01:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:19,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 08:01:19,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:19,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 08:01:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:19,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 08:01:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:19,113 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 08:01:19,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:19,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866333455] [2023-11-19 08:01:19,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866333455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:19,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:19,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:01:19,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424735321] [2023-11-19 08:01:19,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:19,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:19,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:19,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:19,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:19,119 INFO L87 Difference]: Start difference. First operand 101 states and 128 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 08:01:19,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:19,169 INFO L93 Difference]: Finished difference Result 148 states and 186 transitions. [2023-11-19 08:01:19,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:01:19,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 36 [2023-11-19 08:01:19,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:19,172 INFO L225 Difference]: With dead ends: 148 [2023-11-19 08:01:19,173 INFO L226 Difference]: Without dead ends: 101 [2023-11-19 08:01:19,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:19,175 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 6 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:19,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 374 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:19,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-19 08:01:19,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-11-19 08:01:19,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.1692307692307693) internal successors, (76), 66 states have internal predecessors, (76), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 08:01:19,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 127 transitions. [2023-11-19 08:01:19,191 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 127 transitions. Word has length 36 [2023-11-19 08:01:19,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:19,192 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 127 transitions. [2023-11-19 08:01:19,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 08:01:19,193 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 127 transitions. [2023-11-19 08:01:19,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 08:01:19,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:19,196 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:19,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:01:19,197 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:19,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:19,197 INFO L85 PathProgramCache]: Analyzing trace with hash 2108660913, now seen corresponding path program 1 times [2023-11-19 08:01:19,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:19,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980750758] [2023-11-19 08:01:19,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:19,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:19,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:01:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:19,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 08:01:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:19,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-19 08:01:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:19,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 08:01:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:19,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-19 08:01:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:19,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:01:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:19,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:01:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:19,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 08:01:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:19,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-19 08:01:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:19,909 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-19 08:01:19,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:19,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980750758] [2023-11-19 08:01:19,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980750758] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:19,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:19,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:01:19,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240194957] [2023-11-19 08:01:19,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:19,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:01:19,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:19,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:01:19,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:01:19,916 INFO L87 Difference]: Start difference. First operand 101 states and 127 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 7 states have internal predecessors, (34), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-19 08:01:20,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:20,381 INFO L93 Difference]: Finished difference Result 138 states and 169 transitions. [2023-11-19 08:01:20,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 08:01:20,381 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 7 states have internal predecessors, (34), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 64 [2023-11-19 08:01:20,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:20,384 INFO L225 Difference]: With dead ends: 138 [2023-11-19 08:01:20,384 INFO L226 Difference]: Without dead ends: 101 [2023-11-19 08:01:20,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-19 08:01:20,386 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 65 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:20,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 449 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 08:01:20,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-19 08:01:20,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-11-19 08:01:20,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.1538461538461537) internal successors, (75), 66 states have internal predecessors, (75), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 08:01:20,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 126 transitions. [2023-11-19 08:01:20,402 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 126 transitions. Word has length 64 [2023-11-19 08:01:20,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:20,402 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 126 transitions. [2023-11-19 08:01:20,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 7 states have internal predecessors, (34), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-19 08:01:20,403 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2023-11-19 08:01:20,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 08:01:20,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:20,406 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:20,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:01:20,406 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:20,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:20,407 INFO L85 PathProgramCache]: Analyzing trace with hash -63104247, now seen corresponding path program 1 times [2023-11-19 08:01:20,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:20,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205803223] [2023-11-19 08:01:20,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:20,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:20,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:01:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:20,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 08:01:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:20,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-19 08:01:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:20,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 08:01:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:20,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-19 08:01:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:20,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:01:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:20,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:01:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:20,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 08:01:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:20,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 08:01:20,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:20,903 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-19 08:01:20,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:20,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205803223] [2023-11-19 08:01:20,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205803223] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:20,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:20,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:01:20,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775884752] [2023-11-19 08:01:20,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:20,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:01:20,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:20,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:01:20,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:01:20,909 INFO L87 Difference]: Start difference. First operand 101 states and 126 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-19 08:01:21,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:21,231 INFO L93 Difference]: Finished difference Result 159 states and 199 transitions. [2023-11-19 08:01:21,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:01:21,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 65 [2023-11-19 08:01:21,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:21,233 INFO L225 Difference]: With dead ends: 159 [2023-11-19 08:01:21,233 INFO L226 Difference]: Without dead ends: 101 [2023-11-19 08:01:21,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:01:21,235 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 43 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:21,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 244 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 08:01:21,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-19 08:01:21,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-11-19 08:01:21,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.1384615384615384) internal successors, (74), 66 states have internal predecessors, (74), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 08:01:21,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 125 transitions. [2023-11-19 08:01:21,249 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 125 transitions. Word has length 65 [2023-11-19 08:01:21,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:21,249 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 125 transitions. [2023-11-19 08:01:21,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-19 08:01:21,250 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 125 transitions. [2023-11-19 08:01:21,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-19 08:01:21,255 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:21,255 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:21,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:01:21,256 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:21,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:21,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1726009102, now seen corresponding path program 1 times [2023-11-19 08:01:21,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:21,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817094566] [2023-11-19 08:01:21,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:21,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:21,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:01:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:22,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 08:01:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:22,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:01:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:22,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:01:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:22,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 08:01:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:22,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:01:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:22,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-19 08:01:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:22,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 08:01:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:22,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 08:01:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:22,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-19 08:01:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:22,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-19 08:01:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:22,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:01:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:22,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 08:01:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:22,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-19 08:01:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:22,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-19 08:01:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:22,548 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-11-19 08:01:22,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:22,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817094566] [2023-11-19 08:01:22,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817094566] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:22,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:22,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-11-19 08:01:22,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499513915] [2023-11-19 08:01:22,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:22,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-19 08:01:22,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:22,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-19 08:01:22,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2023-11-19 08:01:22,554 INFO L87 Difference]: Start difference. First operand 101 states and 125 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 12 states have internal predecessors, (44), 6 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 9 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-19 08:01:23,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:23,432 INFO L93 Difference]: Finished difference Result 138 states and 167 transitions. [2023-11-19 08:01:23,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 08:01:23,433 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 12 states have internal predecessors, (44), 6 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 9 states have call predecessors, (14), 6 states have call successors, (14) Word has length 99 [2023-11-19 08:01:23,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:23,435 INFO L225 Difference]: With dead ends: 138 [2023-11-19 08:01:23,435 INFO L226 Difference]: Without dead ends: 101 [2023-11-19 08:01:23,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2023-11-19 08:01:23,437 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 68 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:23,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 703 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 08:01:23,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-19 08:01:23,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-11-19 08:01:23,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.123076923076923) internal successors, (73), 66 states have internal predecessors, (73), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 08:01:23,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 124 transitions. [2023-11-19 08:01:23,450 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 124 transitions. Word has length 99 [2023-11-19 08:01:23,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:23,451 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 124 transitions. [2023-11-19 08:01:23,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 12 states have internal predecessors, (44), 6 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 9 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-19 08:01:23,456 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 124 transitions. [2023-11-19 08:01:23,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-19 08:01:23,464 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:23,465 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:23,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:01:23,465 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:23,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:23,466 INFO L85 PathProgramCache]: Analyzing trace with hash -151358824, now seen corresponding path program 1 times [2023-11-19 08:01:23,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:23,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379615533] [2023-11-19 08:01:23,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:23,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:23,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:23,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:01:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:23,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 08:01:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:01:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:01:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 08:01:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:01:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-19 08:01:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 08:01:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 08:01:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-19 08:01:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-19 08:01:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:01:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 08:01:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-19 08:01:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-19 08:01:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:01:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 08:01:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-19 08:01:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,380 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-19 08:01:24,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:24,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379615533] [2023-11-19 08:01:24,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379615533] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:01:24,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191042136] [2023-11-19 08:01:24,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:24,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:24,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:24,384 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:24,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 08:01:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:24,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:01:24,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:24,852 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-19 08:01:24,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:24,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191042136] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:24,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:01:24,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2023-11-19 08:01:24,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735522025] [2023-11-19 08:01:24,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:24,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:24,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:24,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:24,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2023-11-19 08:01:24,860 INFO L87 Difference]: Start difference. First operand 101 states and 124 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-19 08:01:24,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:24,919 INFO L93 Difference]: Finished difference Result 155 states and 189 transitions. [2023-11-19 08:01:24,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:01:24,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 117 [2023-11-19 08:01:24,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:24,924 INFO L225 Difference]: With dead ends: 155 [2023-11-19 08:01:24,924 INFO L226 Difference]: Without dead ends: 101 [2023-11-19 08:01:24,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2023-11-19 08:01:24,927 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 2 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:24,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 356 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:24,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-19 08:01:24,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-11-19 08:01:24,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.1076923076923078) internal successors, (72), 66 states have internal predecessors, (72), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 08:01:24,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 123 transitions. [2023-11-19 08:01:24,957 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 123 transitions. Word has length 117 [2023-11-19 08:01:24,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:24,958 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 123 transitions. [2023-11-19 08:01:24,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-19 08:01:24,959 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 123 transitions. [2023-11-19 08:01:24,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-19 08:01:24,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:24,962 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:24,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:25,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:25,175 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:25,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:25,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1818490091, now seen corresponding path program 1 times [2023-11-19 08:01:25,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:25,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628859912] [2023-11-19 08:01:25,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:25,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:25,653 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:01:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:25,987 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:01:25,987 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 08:01:25,988 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 08:01:25,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 08:01:25,993 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:25,997 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:01:26,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-19 08:01:26,043 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-19 08:01:26,043 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret540 could not be translated [2023-11-19 08:01:26,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret542 [2023-11-19 08:01:26,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated [2023-11-19 08:01:26,046 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated [2023-11-19 08:01:26,046 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite545 [2023-11-19 08:01:26,046 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-19 08:01:26,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret1306 [2023-11-19 08:01:26,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-19 08:01:26,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite1307 [2023-11-19 08:01:26,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret1306 [2023-11-19 08:01:26,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated [2023-11-19 08:01:26,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret546 could not be translated [2023-11-19 08:01:26,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret547 [2023-11-19 08:01:26,050 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem548 could not be translated [2023-11-19 08:01:26,050 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem548 could not be translated [2023-11-19 08:01:26,051 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret1309 [2023-11-19 08:01:26,051 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated [2023-11-19 08:01:26,051 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite1310 [2023-11-19 08:01:26,052 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short730 could not be translated [2023-11-19 08:01:26,052 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-19 08:01:26,052 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-19 08:01:26,053 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated [2023-11-19 08:01:26,053 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated [2023-11-19 08:01:26,053 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated [2023-11-19 08:01:26,053 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-19 08:01:26,053 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-19 08:01:26,054 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret729 could not be translated [2023-11-19 08:01:26,054 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short730 could not be translated [2023-11-19 08:01:26,054 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret729 could not be translated [2023-11-19 08:01:26,055 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short730 could not be translated [2023-11-19 08:01:26,055 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret729 could not be translated [2023-11-19 08:01:26,055 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short730 could not be translated [2023-11-19 08:01:26,056 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem731 could not be translated [2023-11-19 08:01:26,058 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 08:01:26,058 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret732 could not be translated [2023-11-19 08:01:26,059 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem731 could not be translated [2023-11-19 08:01:26,059 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-19 08:01:26,059 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-19 08:01:26,060 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated [2023-11-19 08:01:26,060 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated [2023-11-19 08:01:26,060 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated [2023-11-19 08:01:26,060 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-19 08:01:26,060 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-19 08:01:26,061 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1312 could not be translated [2023-11-19 08:01:26,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:01:26 BoogieIcfgContainer [2023-11-19 08:01:26,081 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:01:26,082 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:01:26,082 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:01:26,082 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:01:26,083 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:17" (3/4) ... [2023-11-19 08:01:26,084 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 08:01:26,107 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-19 08:01:26,108 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-19 08:01:26,109 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret540 could not be translated [2023-11-19 08:01:26,111 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret542 [2023-11-19 08:01:26,111 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated [2023-11-19 08:01:26,111 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite545 [2023-11-19 08:01:26,114 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated [2023-11-19 08:01:26,120 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret1306 [2023-11-19 08:01:26,120 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-19 08:01:26,121 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite1307 [2023-11-19 08:01:26,122 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret1306 [2023-11-19 08:01:26,122 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-19 08:01:26,122 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated [2023-11-19 08:01:26,123 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret546 could not be translated [2023-11-19 08:01:26,125 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret547 [2023-11-19 08:01:26,125 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem548 could not be translated [2023-11-19 08:01:26,127 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem548 could not be translated [2023-11-19 08:01:26,127 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite1310 [2023-11-19 08:01:26,128 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated [2023-11-19 08:01:26,128 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret1309 [2023-11-19 08:01:26,128 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short730 could not be translated [2023-11-19 08:01:26,129 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-19 08:01:26,129 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-19 08:01:26,129 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated [2023-11-19 08:01:26,129 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated [2023-11-19 08:01:26,130 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated [2023-11-19 08:01:26,130 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-19 08:01:26,130 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-19 08:01:26,130 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret729 could not be translated [2023-11-19 08:01:26,130 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short730 could not be translated [2023-11-19 08:01:26,132 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short730 could not be translated [2023-11-19 08:01:26,132 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret729 could not be translated [2023-11-19 08:01:26,133 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret729 could not be translated [2023-11-19 08:01:26,133 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short730 could not be translated [2023-11-19 08:01:26,133 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem731 could not be translated [2023-11-19 08:01:26,135 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 08:01:26,136 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret732 could not be translated [2023-11-19 08:01:26,136 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem731 could not be translated [2023-11-19 08:01:26,136 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-19 08:01:26,137 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-19 08:01:26,137 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated [2023-11-19 08:01:26,137 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated [2023-11-19 08:01:26,137 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated [2023-11-19 08:01:26,137 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-19 08:01:26,137 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-19 08:01:26,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1312 could not be translated [2023-11-19 08:01:26,200 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:01:26,200 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:01:26,201 INFO L158 Benchmark]: Toolchain (without parser) took 12804.23ms. Allocated memory was 153.1MB in the beginning and 302.0MB in the end (delta: 148.9MB). Free memory was 106.7MB in the beginning and 148.9MB in the end (delta: -42.2MB). Peak memory consumption was 106.3MB. Max. memory is 16.1GB. [2023-11-19 08:01:26,201 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 117.4MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:01:26,201 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3151.62ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 106.7MB in the beginning and 75.4MB in the end (delta: 31.3MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. [2023-11-19 08:01:26,202 INFO L158 Benchmark]: Boogie Procedure Inliner took 205.78ms. Allocated memory is still 201.3MB. Free memory was 75.4MB in the beginning and 142.4MB in the end (delta: -67.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 08:01:26,202 INFO L158 Benchmark]: Boogie Preprocessor took 58.67ms. Allocated memory is still 201.3MB. Free memory was 142.4MB in the beginning and 138.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:01:26,202 INFO L158 Benchmark]: RCFGBuilder took 868.58ms. Allocated memory is still 201.3MB. Free memory was 138.2MB in the beginning and 95.2MB in the end (delta: 43.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-19 08:01:26,203 INFO L158 Benchmark]: TraceAbstraction took 8392.15ms. Allocated memory was 201.3MB in the beginning and 302.0MB in the end (delta: 100.7MB). Free memory was 94.2MB in the beginning and 157.3MB in the end (delta: -63.1MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2023-11-19 08:01:26,203 INFO L158 Benchmark]: Witness Printer took 117.98ms. Allocated memory is still 302.0MB. Free memory was 157.3MB in the beginning and 148.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 08:01:26,208 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 117.4MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3151.62ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 106.7MB in the beginning and 75.4MB in the end (delta: 31.3MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 205.78ms. Allocated memory is still 201.3MB. Free memory was 75.4MB in the beginning and 142.4MB in the end (delta: -67.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.67ms. Allocated memory is still 201.3MB. Free memory was 142.4MB in the beginning and 138.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 868.58ms. Allocated memory is still 201.3MB. Free memory was 138.2MB in the beginning and 95.2MB in the end (delta: 43.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8392.15ms. Allocated memory was 201.3MB in the beginning and 302.0MB in the end (delta: 100.7MB). Free memory was 94.2MB in the beginning and 157.3MB in the end (delta: -63.1MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. * Witness Printer took 117.98ms. Allocated memory is still 302.0MB. Free memory was 157.3MB in the beginning and 148.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 8556]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8556] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret540 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret542 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ite545 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret1306 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ite1307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret1306 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret546 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret547 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem548 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem548 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret1309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ite1310 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short730 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret729 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short730 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret729 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short730 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret729 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short730 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem731 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret732 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem731 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1312 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret540 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret542 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ite545 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret1306 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ite1307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret1306 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret546 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret547 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem548 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem548 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ite1310 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret1309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short730 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret729 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short730 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short730 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret729 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret729 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short730 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem731 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret732 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem731 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1312 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 223]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6855-L6860] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7935-L7947] static const uint8_t s_tolower_table[256] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 91, 92, 93, 94, 95, 96, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255}; VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L8893] CALL aws_string_eq_c_str_harness() [L8880] CALL, EXPR nondet_bool() VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L261] return __VERIFIER_nondet_bool(); [L8880] RET, EXPR nondet_bool() VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L8880-L8881] EXPR nondet_bool() ? ensure_string_is_allocated_bounded_length(16) : ((void *)0) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L8880] CALL, EXPR ensure_string_is_allocated_bounded_length(16) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6790] CALL, EXPR nondet_uint64_t() VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L266] return __VERIFIER_nondet_ulong(); [L6790] RET, EXPR nondet_uint64_t() VAL [\old(max_size)=16, max_size=16, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6790] size_t len = nondet_uint64_t(); [L6791] CALL assume_abort_if_not(len < max_size) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6791] RET assume_abort_if_not(len < max_size) VAL [\old(max_size)=16, len=0, max_size=16, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6792] CALL, EXPR ensure_string_is_allocated(len) [L6796] CALL, EXPR bounded_malloc(sizeof(struct aws_string) + len + 1) VAL [\old(size)=17, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6872-L6874] CALL assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6872-L6874] RET assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) VAL [\old(size)=17, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, size=17] [L6875] return malloc(size); [L6796] RET, EXPR bounded_malloc(sizeof(struct aws_string) + len + 1) VAL [\old(len)=0, len=0, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6796] struct aws_string *str = bounded_malloc(sizeof(struct aws_string) + len + 1); [L6799] CALL, EXPR nondet_bool() VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L261] return __VERIFIER_nondet_bool(); [L6799] RET, EXPR nondet_bool() VAL [\old(len)=0, len=0, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}] [L6799-L6800] EXPR nondet_bool() ? can_fail_allocator() : ((void *)0) VAL [\old(len)=0, len=0, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}] [L6799-L6800] *(struct aws_allocator **)(&str->allocator) = nondet_bool() ? can_fail_allocator() : ((void *)0) [L6802] *(size_t *)(&str->len) = len [L6803] *(uint8_t *)&str->bytes[len] = '\0' [L6804] return str; VAL [\old(len)=0, \result={-2:0}, len=0, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}] [L6792] RET, EXPR ensure_string_is_allocated(len) [L6792] return ensure_string_is_allocated(len); [L8880] RET, EXPR ensure_string_is_allocated_bounded_length(16) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L8880-L8881] EXPR nondet_bool() ? ensure_string_is_allocated_bounded_length(16) : ((void *)0) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L8880-L8882] struct aws_string *str = nondet_bool() ? ensure_string_is_allocated_bounded_length(16) : ((void *)0) ; [L8883] CALL, EXPR nondet_bool() VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L261] return __VERIFIER_nondet_bool(); [L8883] RET, EXPR nondet_bool() VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}] [L8883-L8884] EXPR nondet_bool() ? ensure_c_str_is_allocated(16) : ((void *)0) [L8883] CALL, EXPR ensure_c_str_is_allocated(16) [L6808] CALL, EXPR nondet_uint64_t() VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L266] return __VERIFIER_nondet_ulong(); [L6808] RET, EXPR nondet_uint64_t() VAL [\old(max_size)=16, max_size=16, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6808] size_t cap = nondet_uint64_t(); [L6809] CALL assume_abort_if_not(cap > 0 && cap <= max_size) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6809] RET assume_abort_if_not(cap > 0 && cap <= max_size) VAL [\old(max_size)=16, cap=1, max_size=16, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6810] CALL, EXPR bounded_malloc(cap) VAL [\old(size)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6872-L6874] CALL assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6872-L6874] RET assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) VAL [\old(size)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, size=1] [L6875] return malloc(size); [L6810] RET, EXPR bounded_malloc(cap) VAL [\old(max_size)=16, cap=1, max_size=16, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6810] const char *str = bounded_malloc(cap); [L6814] EXPR str[cap - 1] VAL [\old(max_size)=16, cap=1, max_size=16, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-3:0}] [L6814] CALL assume_abort_if_not(str[cap - 1] == 0) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6814] RET assume_abort_if_not(str[cap - 1] == 0) VAL [\old(max_size)=16, cap=1, max_size=16, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-3:0}] [L6815] return str; VAL [\old(max_size)=16, \result={-3:0}, cap=1, max_size=16, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-3:0}] [L8883] RET, EXPR ensure_c_str_is_allocated(16) [L8883-L8884] EXPR nondet_bool() ? ensure_c_str_is_allocated(16) : ((void *)0) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}] [L8883-L8885] const char *c_str = nondet_bool() ? ensure_c_str_is_allocated(16) : ((void *)0) ; [L8886] CALL, EXPR aws_string_eq_c_str(str, c_str) [L7547] EXPR !str || aws_string_is_valid(str) VAL [c_str={-3:0}, c_str={-3:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}, str={-2:0}] [L7547] CALL, EXPR aws_string_is_valid(str) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) [L6245] EXPR str->len [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}, str={-2:0}] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0 [L6245] EXPR str->len [L6245] EXPR str->bytes[str->len] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0 VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}, str={-2:0}] [L6245] return str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0; [L7547] RET, EXPR aws_string_is_valid(str) VAL [c_str={-3:0}, c_str={-3:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}, str={-2:0}] [L7547] EXPR !str || aws_string_is_valid(str) VAL [c_str={-3:0}, c_str={-3:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}, str={-2:0}] [L7547] CALL assume_abort_if_not((!str || aws_string_is_valid(str))) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L7547] RET assume_abort_if_not((!str || aws_string_is_valid(str))) VAL [c_str={-3:0}, c_str={-3:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}, str={-2:0}] [L7548-L7551] COND FALSE !(str == ((void *)0) && c_str == ((void *)0)) VAL [c_str={-3:0}, c_str={-3:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}, str={-2:0}] [L7557-L7560] COND FALSE !(str == ((void *)0) || c_str == ((void *)0)) [L7566] EXPR str->len VAL [c_str={-3:0}, c_str={-3:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}, str={-2:0}] [L7566] CALL, EXPR aws_array_eq_c_str(str->bytes, str->len, c_str) VAL [\old(array_len)=0, array={-2:16}, c_str={-3:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L8048] CALL assume_abort_if_not((array || (array_len == 0))) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L8048] RET assume_abort_if_not((array || (array_len == 0))) VAL [\old(array_len)=0, array={-2:16}, array={-2:16}, array_len=0, c_str={-3:0}, c_str={-3:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L8051-L8053] CALL assume_abort_if_not((c_str != ((void *)0) )) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L8051-L8053] RET assume_abort_if_not((c_str != ((void *)0) )) VAL [\old(array_len)=0, array={-2:16}, array={-2:16}, array_len=0, c_str={-3:0}, c_str={-3:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L8060] const uint8_t *array_bytes = array; [L8061] const uint8_t *str_bytes = (const uint8_t *)c_str; [L8063] size_t i = 0; VAL [\old(array_len)=0, array={-2:16}, array={-2:16}, array_bytes={-2:16}, array_len=0, c_str={-3:0}, c_str={-3:0}, i=0, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str_bytes={-3:0}] [L8063] COND FALSE !(i < array_len) VAL [\old(array_len)=0, array={-2:16}, array={-2:16}, array_bytes={-2:16}, array_len=0, c_str={-3:0}, c_str={-3:0}, i=0, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str_bytes={-3:0}] [L8078] EXPR str_bytes[array_len] [L8078] return str_bytes[array_len] == '\0'; [L7566] RET, EXPR aws_array_eq_c_str(str->bytes, str->len, c_str) VAL [c_str={-3:0}, c_str={-3:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}, str={-2:0}] [L7566] return aws_array_eq_c_str(str->bytes, str->len, c_str); [L8886] RET, EXPR aws_string_eq_c_str(str, c_str) [L8886] COND TRUE aws_string_eq_c_str(str, c_str) && str && c_str [L8887] CALL, EXPR aws_string_is_valid(str) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) [L6245] EXPR str->len [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}, str={-2:0}] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0 [L6245] EXPR str->len [L6245] EXPR str->bytes[str->len] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0 VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}, str={-2:0}] [L6245] return str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0; [L8887] RET, EXPR aws_string_is_valid(str) VAL [c_str={-3:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}] [L8887] CALL __VERIFIER_assert(!(aws_string_is_valid(str))) VAL [\old(cond)=0, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L223] COND TRUE !cond VAL [\old(cond)=0, cond=0, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L223] reach_error() VAL [\old(cond)=0, cond=0, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.2s, OverallIterations: 7, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 219 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 184 mSDsluCounter, 2262 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1647 mSDsCounter, 88 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1702 IncrementalHoareTripleChecker+Invalid, 1790 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 88 mSolverCounterUnsat, 615 mSDtfsCounter, 1702 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 290 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=0, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 660 NumberOfCodeBlocks, 660 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 527 ConstructedInterpolants, 0 QuantifiedInterpolants, 1036 SizeOfPredicates, 1 NumberOfNonLiveVariables, 962 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 393/395 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-19 08:01:26,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed26da0-576c-4e35-86fa-dd2a6fab7e25/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE