./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl --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 965d656958c5277ff7b46967a72c2c81e4c2c563a1b6d02990446bd426a67de4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:08:55,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:08:56,127 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:08:56,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:08:56,133 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:08:56,154 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:08:56,155 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:08:56,156 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:08:56,157 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:08:56,157 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:08:56,158 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:08:56,159 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:08:56,159 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:08:56,160 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:08:56,161 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:08:56,161 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:08:56,162 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:08:56,163 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:08:56,163 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:08:56,164 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:08:56,165 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:08:56,165 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:08:56,166 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:08:56,167 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:08:56,167 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:08:56,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:56,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:08:56,169 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:08:56,170 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:08:56,171 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:08:56,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:08:56,172 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:08:56,172 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:08:56,173 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:08:56,173 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:08:56,173 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:08:56,174 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_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 965d656958c5277ff7b46967a72c2c81e4c2c563a1b6d02990446bd426a67de4 [2023-11-12 02:08:56,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:08:56,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:08:56,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:08:56,544 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:08:56,545 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:08:56,546 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i [2023-11-12 02:08:59,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:09:00,232 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:09:00,233 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i [2023-11-12 02:09:00,296 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/data/e49d99c14/e410ddb0fef64d2680803db278027d39/FLAGb402138e6 [2023-11-12 02:09:00,313 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/data/e49d99c14/e410ddb0fef64d2680803db278027d39 [2023-11-12 02:09:00,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:09:00,320 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:09:00,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:09:00,324 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:09:00,330 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:09:00,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:09:00" (1/1) ... [2023-11-12 02:09:00,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68f49fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:00, skipping insertion in model container [2023-11-12 02:09:00,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:09:00" (1/1) ... [2023-11-12 02:09:00,491 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:09:00,834 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_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i[4492,4505] [2023-11-12 02:09:00,843 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i[4552,4565] [2023-11-12 02:09:02,133 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:02,134 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:02,134 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:02,135 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:02,137 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:02,160 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:02,161 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:02,163 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:02,164 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:02,647 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 02:09:02,648 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 02:09:02,650 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 02:09:02,651 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 02:09:02,653 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 02:09:02,654 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 02:09:02,655 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 02:09:02,655 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 02:09:02,656 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 02:09:02,657 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 02:09:03,037 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:03,045 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:03,205 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:09:03,292 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:09:03,304 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_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i[4492,4505] [2023-11-12 02:09:03,304 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_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i[4552,4565] [2023-11-12 02:09:03,358 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:03,358 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:03,359 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:03,359 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:03,360 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:03,378 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:03,378 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:03,380 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:03,380 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:03,429 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 02:09:03,431 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 02:09:03,432 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 02:09:03,433 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 02:09:03,434 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 02:09:03,435 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 02:09:03,436 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 02:09:03,437 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 02:09:03,437 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 02:09:03,438 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 02:09:03,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8221] [2023-11-12 02:09:03,618 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:03,619 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:09:03,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8707-8718] [2023-11-12 02:09:03,726 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:09:03,966 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,967 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,969 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,969 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,969 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,970 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,970 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,970 WARN L672 CHandler]: The function s_global_handler is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,970 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,970 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,971 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,971 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,971 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,972 WARN L672 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,972 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,972 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,972 WARN L672 CHandler]: The function tl_thread_handler is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,973 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,974 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,974 WARN L672 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:03,982 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:09:03,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:03 WrapperNode [2023-11-12 02:09:03,983 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:09:03,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:09:03,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:09:03,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:09:03,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:03" (1/1) ... [2023-11-12 02:09:04,108 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:03" (1/1) ... [2023-11-12 02:09:04,229 INFO L138 Inliner]: procedures = 692, calls = 2785, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 812 [2023-11-12 02:09:04,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:09:04,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:09:04,231 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:09:04,231 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:09:04,241 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:03" (1/1) ... [2023-11-12 02:09:04,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:03" (1/1) ... [2023-11-12 02:09:04,251 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:03" (1/1) ... [2023-11-12 02:09:04,251 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:03" (1/1) ... [2023-11-12 02:09:04,315 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:03" (1/1) ... [2023-11-12 02:09:04,318 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:03" (1/1) ... [2023-11-12 02:09:04,327 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:03" (1/1) ... [2023-11-12 02:09:04,344 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:03" (1/1) ... [2023-11-12 02:09:04,368 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:09:04,375 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:09:04,375 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:09:04,375 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:09:04,376 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:03" (1/1) ... [2023-11-12 02:09:04,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:09:04,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:04,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:09:04,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:09:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2023-11-12 02:09:04,557 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2023-11-12 02:09:04,558 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_compare [2023-11-12 02:09:04,558 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_compare [2023-11-12 02:09:04,559 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2023-11-12 02:09:04,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2023-11-12 02:09:04,560 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 02:09:04,560 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 02:09:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 02:09:04,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:09:04,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 02:09:04,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 02:09:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:09:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:09:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:09:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:09:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:09:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 02:09:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 02:09:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:09:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2023-11-12 02:09:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2023-11-12 02:09:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:09:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:09:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:09:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 02:09:04,564 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 02:09:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-12 02:09:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-12 02:09:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:09:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:09:04,908 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:09:04,910 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:09:06,481 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:09:06,491 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:09:06,491 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:09:06,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:09:06 BoogieIcfgContainer [2023-11-12 02:09:06,495 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:09:06,499 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:09:06,499 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:09:06,502 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:09:06,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:09:00" (1/3) ... [2023-11-12 02:09:06,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5386c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:09:06, skipping insertion in model container [2023-11-12 02:09:06,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:03" (2/3) ... [2023-11-12 02:09:06,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5386c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:09:06, skipping insertion in model container [2023-11-12 02:09:06,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:09:06" (3/3) ... [2023-11-12 02:09:06,512 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_compare_harness_negated.i [2023-11-12 02:09:06,532 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:09:06,533 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:09:06,601 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:09:06,608 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;@3f1056d5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:09:06,608 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:09:06,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 76 states have (on average 1.2763157894736843) internal successors, (97), 77 states have internal predecessors, (97), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-12 02:09:06,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 02:09:06,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:06,631 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-12 02:09:06,632 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:09:06,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:06,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1145009449, now seen corresponding path program 1 times [2023-11-12 02:09:06,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:06,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038939669] [2023-11-12 02:09:06,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:06,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:07,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:09:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:07,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:09:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:07,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:09:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:07,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:09:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:07,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:09:07,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:07,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:09:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:07,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:09:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:07,484 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-12 02:09:07,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:07,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038939669] [2023-11-12 02:09:07,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038939669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:07,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:07,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:09:07,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420048213] [2023-11-12 02:09:07,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:07,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:09:07,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:07,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:09:07,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:09:07,525 INFO L87 Difference]: Start difference. First operand has 121 states, 76 states have (on average 1.2763157894736843) internal successors, (97), 77 states have internal predecessors, (97), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:09:07,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:07,567 INFO L93 Difference]: Finished difference Result 237 states and 336 transitions. [2023-11-12 02:09:07,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:09:07,569 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2023-11-12 02:09:07,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:07,580 INFO L225 Difference]: With dead ends: 237 [2023-11-12 02:09:07,580 INFO L226 Difference]: Without dead ends: 116 [2023-11-12 02:09:07,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:09:07,589 INFO L413 NwaCegarLoop]: 161 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, 161 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 [2023-11-12 02:09:07,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:09:07,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-12 02:09:07,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2023-11-12 02:09:07,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 72 states have (on average 1.25) internal successors, (90), 73 states have internal predecessors, (90), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-12 02:09:07,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 155 transitions. [2023-11-12 02:09:07,647 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 155 transitions. Word has length 50 [2023-11-12 02:09:07,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:07,649 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 155 transitions. [2023-11-12 02:09:07,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:09:07,649 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 155 transitions. [2023-11-12 02:09:07,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 02:09:07,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:07,653 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-12 02:09:07,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:09:07,654 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:09:07,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:07,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1733424873, now seen corresponding path program 1 times [2023-11-12 02:09:07,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:07,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831314236] [2023-11-12 02:09:07,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:07,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:08,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:09:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:08,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:09:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:08,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:09:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:08,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:09:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:08,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:09:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:08,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:09:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:08,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:09:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:08,534 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-12 02:09:08,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:08,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831314236] [2023-11-12 02:09:08,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831314236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:08,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:08,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:09:08,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578453008] [2023-11-12 02:09:08,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:08,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:09:08,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:08,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:09:08,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:09:08,539 INFO L87 Difference]: Start difference. First operand 116 states and 155 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:09:08,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:08,594 INFO L93 Difference]: Finished difference Result 170 states and 226 transitions. [2023-11-12 02:09:08,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:09:08,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2023-11-12 02:09:08,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:08,598 INFO L225 Difference]: With dead ends: 170 [2023-11-12 02:09:08,598 INFO L226 Difference]: Without dead ends: 134 [2023-11-12 02:09:08,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:09:08,601 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 6 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:08,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 447 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:09:08,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-11-12 02:09:08,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 131. [2023-11-12 02:09:08,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 82 states have (on average 1.2439024390243902) internal successors, (102), 83 states have internal predecessors, (102), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-12 02:09:08,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 177 transitions. [2023-11-12 02:09:08,633 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 177 transitions. Word has length 50 [2023-11-12 02:09:08,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:08,633 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 177 transitions. [2023-11-12 02:09:08,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:09:08,634 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 177 transitions. [2023-11-12 02:09:08,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-12 02:09:08,637 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:08,637 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:08,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:09:08,638 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:09:08,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:08,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1665251248, now seen corresponding path program 1 times [2023-11-12 02:09:08,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:08,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423984086] [2023-11-12 02:09:08,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:08,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:09,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:09:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:09,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:09:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:09,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:09:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:09,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:09:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:09,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:09:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:09,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:09:09,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:09,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:09:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:09,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:09:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:09,314 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-12 02:09:09,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:09,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423984086] [2023-11-12 02:09:09,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423984086] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:09,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:09,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:09:09,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093058475] [2023-11-12 02:09:09,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:09,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:09:09,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:09,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:09:09,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:09:09,321 INFO L87 Difference]: Start difference. First operand 131 states and 177 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 02:09:09,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:09,384 INFO L93 Difference]: Finished difference Result 158 states and 211 transitions. [2023-11-12 02:09:09,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:09:09,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2023-11-12 02:09:09,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:09,394 INFO L225 Difference]: With dead ends: 158 [2023-11-12 02:09:09,394 INFO L226 Difference]: Without dead ends: 137 [2023-11-12 02:09:09,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:09:09,404 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:09,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 450 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:09:09,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-11-12 02:09:09,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2023-11-12 02:09:09,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 87 states have (on average 1.2298850574712643) internal successors, (107), 87 states have internal predecessors, (107), 38 states have call successors, (38), 10 states have call predecessors, (38), 11 states have return successors, (39), 39 states have call predecessors, (39), 37 states have call successors, (39) [2023-11-12 02:09:09,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 184 transitions. [2023-11-12 02:09:09,431 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 184 transitions. Word has length 59 [2023-11-12 02:09:09,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:09,432 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 184 transitions. [2023-11-12 02:09:09,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 02:09:09,432 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 184 transitions. [2023-11-12 02:09:09,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-12 02:09:09,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:09,436 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-12 02:09:09,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:09:09,436 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:09:09,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:09,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1531197961, now seen corresponding path program 1 times [2023-11-12 02:09:09,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:09,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394730364] [2023-11-12 02:09:09,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:09,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:10,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:09:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:10,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:09:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:10,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:09:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:10,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:09:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:10,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:09:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:10,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:09:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:10,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:09:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:10,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-12 02:09:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:10,473 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-12 02:09:10,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:10,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394730364] [2023-11-12 02:09:10,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394730364] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:10,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:10,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:09:10,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990580808] [2023-11-12 02:09:10,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:10,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:09:10,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:10,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:09:10,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:09:10,477 INFO L87 Difference]: Start difference. First operand 137 states and 184 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-12 02:09:10,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:10,601 INFO L93 Difference]: Finished difference Result 166 states and 219 transitions. [2023-11-12 02:09:10,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:09:10,602 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 60 [2023-11-12 02:09:10,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:10,608 INFO L225 Difference]: With dead ends: 166 [2023-11-12 02:09:10,608 INFO L226 Difference]: Without dead ends: 144 [2023-11-12 02:09:10,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:09:10,611 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 18 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:10,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 747 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:09:10,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-12 02:09:10,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 141. [2023-11-12 02:09:10,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 89 states have (on average 1.2247191011235956) internal successors, (109), 90 states have internal predecessors, (109), 40 states have call successors, (40), 10 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 38 states have call successors, (40) [2023-11-12 02:09:10,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 189 transitions. [2023-11-12 02:09:10,648 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 189 transitions. Word has length 60 [2023-11-12 02:09:10,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:10,649 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 189 transitions. [2023-11-12 02:09:10,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-12 02:09:10,649 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 189 transitions. [2023-11-12 02:09:10,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-12 02:09:10,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:10,655 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:10,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:09:10,656 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:09:10,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:10,656 INFO L85 PathProgramCache]: Analyzing trace with hash -260927053, now seen corresponding path program 1 times [2023-11-12 02:09:10,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:10,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995265517] [2023-11-12 02:09:10,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:10,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:12,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:09:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:12,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:09:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:12,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:09:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:13,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:09:13,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:13,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:09:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:13,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:09:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:13,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:09:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:13,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:09:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:13,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-12 02:09:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:13,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-12 02:09:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:13,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:09:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:13,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:09:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:13,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-12 02:09:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:13,744 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-12 02:09:13,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:13,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995265517] [2023-11-12 02:09:13,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995265517] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:09:13,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788668129] [2023-11-12 02:09:13,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:13,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:13,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:13,751 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:09:13,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:09:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:14,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 2568 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-12 02:09:14,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:09:14,929 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-12 02:09:14,930 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:09:14,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788668129] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:14,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:09:14,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 18 [2023-11-12 02:09:14,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760225281] [2023-11-12 02:09:14,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:14,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:09:14,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:14,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:09:14,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-11-12 02:09:14,936 INFO L87 Difference]: Start difference. First operand 141 states and 189 transitions. Second operand has 10 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 6 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-12 02:09:15,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:15,210 INFO L93 Difference]: Finished difference Result 223 states and 289 transitions. [2023-11-12 02:09:15,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:09:15,211 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 6 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 89 [2023-11-12 02:09:15,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:15,213 INFO L225 Difference]: With dead ends: 223 [2023-11-12 02:09:15,213 INFO L226 Difference]: Without dead ends: 61 [2023-11-12 02:09:15,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 106 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2023-11-12 02:09:15,215 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 27 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:15,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 921 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:09:15,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-12 02:09:15,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-12 02:09:15,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 38 states have (on average 1.131578947368421) internal successors, (43), 39 states have internal predecessors, (43), 17 states have call successors, (17), 6 states have call predecessors, (17), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:09:15,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 75 transitions. [2023-11-12 02:09:15,221 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 75 transitions. Word has length 89 [2023-11-12 02:09:15,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:15,222 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 75 transitions. [2023-11-12 02:09:15,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 6 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-12 02:09:15,222 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 75 transitions. [2023-11-12 02:09:15,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-12 02:09:15,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:15,224 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:15,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:09:15,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:15,434 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:09:15,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:15,436 INFO L85 PathProgramCache]: Analyzing trace with hash -272320197, now seen corresponding path program 1 times [2023-11-12 02:09:15,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:15,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128559831] [2023-11-12 02:09:15,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:15,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:16,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:09:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:16,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:09:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:16,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:09:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:16,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:09:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:16,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:09:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:16,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:09:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:16,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-12 02:09:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:16,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:09:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:16,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:09:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:16,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-12 02:09:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:16,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:09:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:16,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:09:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:16,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-12 02:09:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:16,241 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-12 02:09:16,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:16,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128559831] [2023-11-12 02:09:16,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128559831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:16,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:16,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:09:16,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836692200] [2023-11-12 02:09:16,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:16,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:09:16,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:16,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:09:16,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:09:16,244 INFO L87 Difference]: Start difference. First operand 61 states and 75 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-12 02:09:16,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:16,282 INFO L93 Difference]: Finished difference Result 72 states and 86 transitions. [2023-11-12 02:09:16,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:09:16,283 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 92 [2023-11-12 02:09:16,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:16,284 INFO L225 Difference]: With dead ends: 72 [2023-11-12 02:09:16,284 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:09:16,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:09:16,285 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 14 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:16,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 186 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:09:16,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:09:16,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:09:16,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:16,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:09:16,287 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 92 [2023-11-12 02:09:16,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:16,287 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:09:16,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-12 02:09:16,287 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:09:16,287 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:09:16,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:09:16,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:09:16,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 02:09:16,516 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6788 6792) no Hoare annotation was computed. [2023-11-12 02:09:16,516 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_returnLabel#1(lines 6794 6804) no Hoare annotation was computed. [2023-11-12 02:09:16,517 INFO L895 garLoopResultBuilder]: At program point L6798(line 6798) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (<= 1234551 .cse0) (<= (+ (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) 1) .cse0) (<= (+ (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) 1) .cse0))) [2023-11-12 02:09:16,517 INFO L899 garLoopResultBuilder]: For program point L6795-1(line 6795) no Hoare annotation was computed. [2023-11-12 02:09:16,518 INFO L895 garLoopResultBuilder]: At program point L6795(line 6795) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (<= (+ (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) 1) .cse0) (<= (+ (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) 1) .cse0))) [2023-11-12 02:09:16,518 INFO L899 garLoopResultBuilder]: For program point L6798-3(line 6798) no Hoare annotation was computed. [2023-11-12 02:09:16,519 INFO L895 garLoopResultBuilder]: At program point L6798-2(line 6798) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (<= 1234551 .cse0) (<= (+ (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) 1) .cse0) (<= (+ (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) 1) .cse0))) [2023-11-12 02:09:16,519 INFO L899 garLoopResultBuilder]: For program point L6798-1(lines 6798 6799) no Hoare annotation was computed. [2023-11-12 02:09:16,519 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6788 6792) the Hoare annotation is: true [2023-11-12 02:09:16,519 INFO L895 garLoopResultBuilder]: At program point L6790(line 6790) the Hoare annotation is: (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) [2023-11-12 02:09:16,519 INFO L899 garLoopResultBuilder]: For program point L6798-5(lines 6798 6799) no Hoare annotation was computed. [2023-11-12 02:09:16,519 INFO L899 garLoopResultBuilder]: For program point L6789-1(line 6789) no Hoare annotation was computed. [2023-11-12 02:09:16,519 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6788 6792) no Hoare annotation was computed. [2023-11-12 02:09:16,520 INFO L895 garLoopResultBuilder]: At program point L6789(line 6789) the Hoare annotation is: (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) [2023-11-12 02:09:16,520 INFO L899 garLoopResultBuilder]: For program point L6790-1(line 6790) no Hoare annotation was computed. [2023-11-12 02:09:16,520 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6870 6875) no Hoare annotation was computed. [2023-11-12 02:09:16,520 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6870 6875) the Hoare annotation is: true [2023-11-12 02:09:16,520 INFO L899 garLoopResultBuilder]: For program point L6871-1(lines 6871 6873) no Hoare annotation was computed. [2023-11-12 02:09:16,520 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6870 6875) no Hoare annotation was computed. [2023-11-12 02:09:16,520 INFO L895 garLoopResultBuilder]: At program point L6871(lines 6871 6873) the Hoare annotation is: (= |bounded_malloc_#in~size| bounded_malloc_~size) [2023-11-12 02:09:16,520 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2023-11-12 02:09:16,521 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2023-11-12 02:09:16,521 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 261) the Hoare annotation is: true [2023-11-12 02:09:16,521 INFO L899 garLoopResultBuilder]: For program point aws_string_bytesEXIT(lines 6230 6234) no Hoare annotation was computed. [2023-11-12 02:09:16,521 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6230 6234) the Hoare annotation is: true [2023-11-12 02:09:16,521 INFO L902 garLoopResultBuilder]: At program point L6232-1(line 6232) the Hoare annotation is: true [2023-11-12 02:09:16,521 INFO L899 garLoopResultBuilder]: For program point L6232-2(line 6232) no Hoare annotation was computed. [2023-11-12 02:09:16,521 INFO L902 garLoopResultBuilder]: At program point L6232(line 6232) the Hoare annotation is: true [2023-11-12 02:09:16,521 INFO L899 garLoopResultBuilder]: For program point aws_string_bytesFINAL(lines 6230 6234) no Hoare annotation was computed. [2023-11-12 02:09:16,522 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2023-11-12 02:09:16,522 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 210 212) the Hoare annotation is: true [2023-11-12 02:09:16,522 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2023-11-12 02:09:16,522 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2023-11-12 02:09:16,522 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6877 6879) no Hoare annotation was computed. [2023-11-12 02:09:16,522 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6877 6879) the Hoare annotation is: true [2023-11-12 02:09:16,522 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6877 6879) no Hoare annotation was computed. [2023-11-12 02:09:16,523 INFO L899 garLoopResultBuilder]: For program point L6244-5(line 6244) no Hoare annotation was computed. [2023-11-12 02:09:16,523 INFO L899 garLoopResultBuilder]: For program point L6244-3(line 6244) no Hoare annotation was computed. [2023-11-12 02:09:16,523 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6240 6245) no Hoare annotation was computed. [2023-11-12 02:09:16,523 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6240 6245) the Hoare annotation is: true [2023-11-12 02:09:16,523 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6240 6245) no Hoare annotation was computed. [2023-11-12 02:09:16,523 INFO L899 garLoopResultBuilder]: For program point L6244-2(line 6244) no Hoare annotation was computed. [2023-11-12 02:09:16,523 INFO L899 garLoopResultBuilder]: For program point L6244(line 6244) no Hoare annotation was computed. [2023-11-12 02:09:16,523 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2023-11-12 02:09:16,524 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2023-11-12 02:09:16,524 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 266) the Hoare annotation is: true [2023-11-12 02:09:16,524 INFO L899 garLoopResultBuilder]: For program point L9503(lines 9503 9525) no Hoare annotation was computed. [2023-11-12 02:09:16,524 INFO L899 garLoopResultBuilder]: For program point L7088-1(lines 7087 7100) no Hoare annotation was computed. [2023-11-12 02:09:16,524 INFO L895 garLoopResultBuilder]: At program point L7088(line 7088) the Hoare annotation is: false [2023-11-12 02:09:16,524 INFO L895 garLoopResultBuilder]: At program point L9520(line 9520) the Hoare annotation is: false [2023-11-12 02:09:16,524 INFO L895 garLoopResultBuilder]: At program point L9520-1(line 9520) the Hoare annotation is: false [2023-11-12 02:09:16,524 INFO L899 garLoopResultBuilder]: For program point L9520-2(line 9520) no Hoare annotation was computed. [2023-11-12 02:09:16,525 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(line 9526) no Hoare annotation was computed. [2023-11-12 02:09:16,525 INFO L895 garLoopResultBuilder]: At program point L9508(line 9508) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2023-11-12 02:09:16,525 INFO L899 garLoopResultBuilder]: For program point L9508-1(lines 9508 9510) no Hoare annotation was computed. [2023-11-12 02:09:16,525 INFO L895 garLoopResultBuilder]: At program point L9508-2(line 9508) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2023-11-12 02:09:16,525 INFO L899 garLoopResultBuilder]: For program point L9504-3(line 9504) no Hoare annotation was computed. [2023-11-12 02:09:16,525 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 02:09:16,525 INFO L899 garLoopResultBuilder]: For program point L9504-5(lines 9504 9505) no Hoare annotation was computed. [2023-11-12 02:09:16,526 INFO L899 garLoopResultBuilder]: For program point L9508-3(line 9508) no Hoare annotation was computed. [2023-11-12 02:09:16,526 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 02:09:16,526 INFO L902 garLoopResultBuilder]: At program point L9504(line 9504) the Hoare annotation is: true [2023-11-12 02:09:16,526 INFO L899 garLoopResultBuilder]: For program point L9504-1(lines 9504 9505) no Hoare annotation was computed. [2023-11-12 02:09:16,526 INFO L899 garLoopResultBuilder]: For program point L9508-5(lines 9508 9510) no Hoare annotation was computed. [2023-11-12 02:09:16,526 INFO L902 garLoopResultBuilder]: At program point L9504-2(line 9504) the Hoare annotation is: true [2023-11-12 02:09:16,526 INFO L895 garLoopResultBuilder]: At program point L9513(line 9513) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.offset| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2023-11-12 02:09:16,526 INFO L899 garLoopResultBuilder]: For program point L9513-1(line 9513) no Hoare annotation was computed. [2023-11-12 02:09:16,527 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 02:09:16,527 INFO L895 garLoopResultBuilder]: At program point L7098(line 7098) the Hoare annotation is: false [2023-11-12 02:09:16,527 INFO L895 garLoopResultBuilder]: At program point L7094(line 7094) the Hoare annotation is: false [2023-11-12 02:09:16,527 INFO L899 garLoopResultBuilder]: For program point L7098-1(line 7098) no Hoare annotation was computed. [2023-11-12 02:09:16,527 INFO L899 garLoopResultBuilder]: For program point L7094-1(line 7094) no Hoare annotation was computed. [2023-11-12 02:09:16,527 INFO L895 garLoopResultBuilder]: At program point L9514(line 9514) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.offset| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2023-11-12 02:09:16,527 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 02:09:16,528 INFO L899 garLoopResultBuilder]: For program point L9510-1(line 9510) no Hoare annotation was computed. [2023-11-12 02:09:16,528 INFO L899 garLoopResultBuilder]: For program point L9514-1(line 9514) no Hoare annotation was computed. [2023-11-12 02:09:16,528 INFO L899 garLoopResultBuilder]: For program point L9514-2(lines 9514 9518) no Hoare annotation was computed. [2023-11-12 02:09:16,528 INFO L899 garLoopResultBuilder]: For program point L9514-3(lines 9503 9525) no Hoare annotation was computed. [2023-11-12 02:09:16,528 INFO L895 garLoopResultBuilder]: At program point L9510(line 9510) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2023-11-12 02:09:16,528 INFO L899 garLoopResultBuilder]: For program point L7095-1(lines 7095 7097) no Hoare annotation was computed. [2023-11-12 02:09:16,528 INFO L895 garLoopResultBuilder]: At program point L7095(lines 7095 7097) the Hoare annotation is: false [2023-11-12 02:09:16,528 INFO L895 garLoopResultBuilder]: At program point L9523(line 9523) the Hoare annotation is: false [2023-11-12 02:09:16,528 INFO L895 garLoopResultBuilder]: At program point L9523-1(line 9523) the Hoare annotation is: false [2023-11-12 02:09:16,529 INFO L899 garLoopResultBuilder]: For program point L7087(lines 7087 7100) no Hoare annotation was computed. [2023-11-12 02:09:16,529 INFO L899 garLoopResultBuilder]: For program point L9515(lines 9515 9517) no Hoare annotation was computed. [2023-11-12 02:09:16,529 INFO L899 garLoopResultBuilder]: For program point L9523-2(line 9523) no Hoare annotation was computed. [2023-11-12 02:09:16,529 INFO L899 garLoopResultBuilder]: For program point L9519-1(lines 9503 9525) no Hoare annotation was computed. [2023-11-12 02:09:16,529 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2023-11-12 02:09:16,529 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2023-11-12 02:09:16,529 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2023-11-12 02:09:16,529 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2023-11-12 02:09:16,529 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 222 224) the Hoare annotation is: true [2023-11-12 02:09:16,530 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2023-11-12 02:09:16,530 INFO L895 garLoopResultBuilder]: At program point L9185-4(line 9185) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0)) (and (= aws_string_compare_~a.base 0) (= aws_string_compare_~a.offset 0))) [2023-11-12 02:09:16,530 INFO L899 garLoopResultBuilder]: For program point L9185-5(line 9185) no Hoare annotation was computed. [2023-11-12 02:09:16,530 INFO L899 garLoopResultBuilder]: For program point L9185(line 9185) no Hoare annotation was computed. [2023-11-12 02:09:16,530 INFO L895 garLoopResultBuilder]: At program point L9185-2(line 9185) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0)) (and (= aws_string_compare_~a.base 0) (= aws_string_compare_~a.offset 0))) [2023-11-12 02:09:16,530 INFO L899 garLoopResultBuilder]: For program point L9185-3(line 9185) no Hoare annotation was computed. [2023-11-12 02:09:16,530 INFO L899 garLoopResultBuilder]: For program point L9214(lines 9214 9216) no Hoare annotation was computed. [2023-11-12 02:09:16,531 INFO L895 garLoopResultBuilder]: At program point L9206-1(line 9206) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0))) [2023-11-12 02:09:16,531 INFO L899 garLoopResultBuilder]: For program point L9206-2(line 9206) no Hoare annotation was computed. [2023-11-12 02:09:16,531 INFO L899 garLoopResultBuilder]: For program point L9208(lines 9208 9210) no Hoare annotation was computed. [2023-11-12 02:09:16,531 INFO L895 garLoopResultBuilder]: At program point L9206(line 9206) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0))) [2023-11-12 02:09:16,531 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 9184 9218) the Hoare annotation is: true [2023-11-12 02:09:16,531 INFO L899 garLoopResultBuilder]: For program point L9186(line 9186) no Hoare annotation was computed. [2023-11-12 02:09:16,531 INFO L899 garLoopResultBuilder]: For program point L9190(lines 9190 9194) no Hoare annotation was computed. [2023-11-12 02:09:16,532 INFO L899 garLoopResultBuilder]: For program point L9186-5(line 9186) no Hoare annotation was computed. [2023-11-12 02:09:16,532 INFO L899 garLoopResultBuilder]: For program point L9211(lines 9211 9213) no Hoare annotation was computed. [2023-11-12 02:09:16,532 INFO L895 garLoopResultBuilder]: At program point L9186-2(line 9186) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0)) (and (= aws_string_compare_~a.base 0) (= aws_string_compare_~a.offset 0))) [2023-11-12 02:09:16,532 INFO L899 garLoopResultBuilder]: For program point L9186-3(line 9186) no Hoare annotation was computed. [2023-11-12 02:09:16,532 INFO L895 garLoopResultBuilder]: At program point L9186-4(line 9186) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0)) (and (= aws_string_compare_~a.base 0) (= aws_string_compare_~a.offset 0))) [2023-11-12 02:09:16,532 INFO L895 garLoopResultBuilder]: At program point L9205(line 9205) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0))) [2023-11-12 02:09:16,532 INFO L899 garLoopResultBuilder]: For program point L9207-2(line 9207) no Hoare annotation was computed. [2023-11-12 02:09:16,532 INFO L895 garLoopResultBuilder]: At program point L9205-1(line 9205) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0))) [2023-11-12 02:09:16,533 INFO L899 garLoopResultBuilder]: For program point L9205-2(line 9205) no Hoare annotation was computed. [2023-11-12 02:09:16,533 INFO L899 garLoopResultBuilder]: For program point aws_string_compareEXIT(lines 9184 9218) no Hoare annotation was computed. [2023-11-12 02:09:16,533 INFO L895 garLoopResultBuilder]: At program point L9207(line 9207) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0))) [2023-11-12 02:09:16,533 INFO L895 garLoopResultBuilder]: At program point L9207-1(line 9207) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0))) [2023-11-12 02:09:16,533 INFO L899 garLoopResultBuilder]: For program point L9195(lines 9195 9199) no Hoare annotation was computed. [2023-11-12 02:09:16,533 INFO L899 garLoopResultBuilder]: For program point aws_string_compareFINAL(lines 9184 9218) no Hoare annotation was computed. [2023-11-12 02:09:16,533 INFO L899 garLoopResultBuilder]: For program point L9187(lines 9187 9189) no Hoare annotation was computed. [2023-11-12 02:09:16,536 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-12 02:09:16,538 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:09:16,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:09:16 BoogieIcfgContainer [2023-11-12 02:09:16,545 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:09:16,545 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:09:16,545 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:09:16,546 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:09:16,546 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:09:06" (3/4) ... [2023-11-12 02:09:16,548 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:09:16,553 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2023-11-12 02:09:16,553 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2023-11-12 02:09:16,553 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2023-11-12 02:09:16,553 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2023-11-12 02:09:16,554 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_bytes [2023-11-12 02:09:16,554 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-12 02:09:16,554 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-12 02:09:16,554 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_compare [2023-11-12 02:09:16,554 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2023-11-12 02:09:16,554 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2023-11-12 02:09:16,578 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 121 nodes and edges [2023-11-12 02:09:16,580 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 56 nodes and edges [2023-11-12 02:09:16,582 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-11-12 02:09:16,583 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-12 02:09:16,585 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-12 02:09:16,587 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:09:16,589 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-12 02:09:16,591 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:09:17,444 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:09:17,444 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:09:17,444 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:09:17,445 INFO L158 Benchmark]: Toolchain (without parser) took 17125.16ms. Allocated memory was 188.7MB in the beginning and 388.0MB in the end (delta: 199.2MB). Free memory was 146.5MB in the beginning and 161.2MB in the end (delta: -14.6MB). Peak memory consumption was 181.3MB. Max. memory is 16.1GB. [2023-11-12 02:09:17,446 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 125.8MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:09:17,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3661.25ms. Allocated memory was 188.7MB in the beginning and 251.7MB in the end (delta: 62.9MB). Free memory was 146.5MB in the beginning and 125.4MB in the end (delta: 21.2MB). Peak memory consumption was 108.1MB. Max. memory is 16.1GB. [2023-11-12 02:09:17,447 INFO L158 Benchmark]: Boogie Procedure Inliner took 245.36ms. Allocated memory is still 251.7MB. Free memory was 125.4MB in the beginning and 113.8MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:09:17,447 INFO L158 Benchmark]: Boogie Preprocessor took 143.31ms. Allocated memory is still 251.7MB. Free memory was 113.8MB in the beginning and 187.1MB in the end (delta: -73.3MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2023-11-12 02:09:17,448 INFO L158 Benchmark]: RCFGBuilder took 2120.61ms. Allocated memory is still 251.7MB. Free memory was 187.1MB in the beginning and 146.4MB in the end (delta: 40.7MB). Peak memory consumption was 95.7MB. Max. memory is 16.1GB. [2023-11-12 02:09:17,448 INFO L158 Benchmark]: TraceAbstraction took 10045.95ms. Allocated memory was 251.7MB in the beginning and 388.0MB in the end (delta: 136.3MB). Free memory was 145.4MB in the beginning and 294.3MB in the end (delta: -149.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:09:17,448 INFO L158 Benchmark]: Witness Printer took 899.41ms. Allocated memory is still 388.0MB. Free memory was 294.3MB in the beginning and 161.2MB in the end (delta: 133.2MB). Peak memory consumption was 130.0MB. Max. memory is 16.1GB. [2023-11-12 02:09:17,451 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 125.8MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3661.25ms. Allocated memory was 188.7MB in the beginning and 251.7MB in the end (delta: 62.9MB). Free memory was 146.5MB in the beginning and 125.4MB in the end (delta: 21.2MB). Peak memory consumption was 108.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 245.36ms. Allocated memory is still 251.7MB. Free memory was 125.4MB in the beginning and 113.8MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 143.31ms. Allocated memory is still 251.7MB. Free memory was 113.8MB in the beginning and 187.1MB in the end (delta: -73.3MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * RCFGBuilder took 2120.61ms. Allocated memory is still 251.7MB. Free memory was 187.1MB in the beginning and 146.4MB in the end (delta: 40.7MB). Peak memory consumption was 95.7MB. Max. memory is 16.1GB. * TraceAbstraction took 10045.95ms. Allocated memory was 251.7MB in the beginning and 388.0MB in the end (delta: 136.3MB). Free memory was 145.4MB in the beginning and 294.3MB in the end (delta: -149.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 899.41ms. Allocated memory is still 388.0MB. Free memory was 294.3MB in the beginning and 161.2MB in the end (delta: 133.2MB). Peak memory consumption was 130.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 8221]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8221] - GenericResultAtLocation [Line: 8707]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8707-8718] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 121 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.0s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 2912 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2143 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 181 IncrementalHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 769 mSDtfsCounter, 181 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 243 GetRequests, 205 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=4, InterpolantAutomatonStates: 33, 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 193 PreInvPairs, 206 NumberOfFragments, 272 HoareAnnotationTreeSize, 193 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 43 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 489 NumberOfCodeBlocks, 489 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 482 ConstructedInterpolants, 0 QuantifiedInterpolants, 999 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2568 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 229/241 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 02:09:17,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ca2c1-b627-43d8-8fdd-484ae888bdda/bin/uautomizer-verify-uTZkv6EMXl/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 Result: TRUE