./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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.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_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 965d656958c5277ff7b46967a72c2c81e4c2c563a1b6d02990446bd426a67de4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:58:47,186 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:58:47,306 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:58:47,315 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:58:47,315 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:58:47,359 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:58:47,360 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:58:47,360 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:58:47,361 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:58:47,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:58:47,367 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:58:47,368 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:58:47,369 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:58:47,370 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:58:47,371 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:58:47,371 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:58:47,372 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:58:47,372 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:58:47,373 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:58:47,373 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:58:47,374 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:58:47,374 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:58:47,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:58:47,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:58:47,376 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:58:47,377 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:58:47,377 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:58:47,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:58:47,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:58:47,378 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:58:47,380 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:58:47,380 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:58:47,380 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:58:47,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:58:47,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:58:47,381 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:58:47,382 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:58:47,382 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:58:47,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:58:47,382 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:58:47,382 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:58:47,383 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:58:47,383 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 965d656958c5277ff7b46967a72c2c81e4c2c563a1b6d02990446bd426a67de4 [2023-11-12 00:58:47,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:58:47,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:58:47,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:58:47,725 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:58:47,725 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:58:47,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i [2023-11-12 00:58:51,011 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:58:51,610 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:58:51,611 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i [2023-11-12 00:58:51,669 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/data/78707049b/d43ca805646b486fbd6672ba43526275/FLAG2452f7c51 [2023-11-12 00:58:51,685 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/data/78707049b/d43ca805646b486fbd6672ba43526275 [2023-11-12 00:58:51,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:58:51,692 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:58:51,696 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:58:51,696 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:58:51,701 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:58:51,702 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:58:51" (1/1) ... [2023-11-12 00:58:51,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@115f20ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:51, skipping insertion in model container [2023-11-12 00:58:51,703 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:58:51" (1/1) ... [2023-11-12 00:58:51,869 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:58:52,273 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_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i[4492,4505] [2023-11-12 00:58:52,282 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_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i[4552,4565] [2023-11-12 00:58:53,432 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:53,433 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:53,434 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:53,436 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:53,437 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:53,457 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:53,458 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:53,461 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:53,462 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:54,014 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:58:54,016 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:58:54,018 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:58:54,020 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:58:54,022 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:58:54,023 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:58:54,024 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:58:54,025 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:58:54,026 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:58:54,027 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:58:54,378 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:54,386 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:54,597 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:58:54,693 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:58:54,725 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_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i[4492,4505] [2023-11-12 00:58:54,726 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_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i[4552,4565] [2023-11-12 00:58:54,838 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:54,839 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:54,840 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:54,841 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:54,841 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:54,851 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:54,852 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:54,871 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:54,871 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:54,931 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:58:54,932 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:58:54,934 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:58:54,935 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:58:54,937 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:58:54,938 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:58:54,939 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:58:54,939 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:58:54,940 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:58:54,941 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:58:55,062 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8221] [2023-11-12 00:58:55,064 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:55,066 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:58:55,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8707-8718] [2023-11-12 00:58:55,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:58:55,519 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,520 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,520 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,520 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,521 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,521 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,522 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,522 WARN L672 CHandler]: The function s_global_handler is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,523 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,523 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,523 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,523 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,524 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,524 WARN L672 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,524 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,524 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,524 WARN L672 CHandler]: The function tl_thread_handler is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,525 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,525 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,525 WARN L672 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:55,534 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:58:55,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:55 WrapperNode [2023-11-12 00:58:55,535 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:58:55,536 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:58:55,537 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:58:55,537 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:58:55,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:55" (1/1) ... [2023-11-12 00:58:55,684 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:55" (1/1) ... [2023-11-12 00:58:55,775 INFO L138 Inliner]: procedures = 692, calls = 2785, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 812 [2023-11-12 00:58:55,776 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:58:55,777 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:58:55,777 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:58:55,777 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:58:55,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:55" (1/1) ... [2023-11-12 00:58:55,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:55" (1/1) ... [2023-11-12 00:58:55,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:55" (1/1) ... [2023-11-12 00:58:55,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:55" (1/1) ... [2023-11-12 00:58:55,858 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:55" (1/1) ... [2023-11-12 00:58:55,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:55" (1/1) ... [2023-11-12 00:58:55,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:55" (1/1) ... [2023-11-12 00:58:55,897 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:55" (1/1) ... [2023-11-12 00:58:55,910 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:58:55,923 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:58:55,923 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:58:55,923 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:58:55,924 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:55" (1/1) ... [2023-11-12 00:58:55,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:58:55,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:58:55,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:58:55,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:58:56,031 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2023-11-12 00:58:56,031 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2023-11-12 00:58:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_compare [2023-11-12 00:58:56,032 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_compare [2023-11-12 00:58:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2023-11-12 00:58:56,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2023-11-12 00:58:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 00:58:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 00:58:56,033 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 00:58:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:58:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:58:56,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:58:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:58:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:58:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:58:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:58:56,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:58:56,036 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 00:58:56,036 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 00:58:56,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:58:56,036 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2023-11-12 00:58:56,037 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2023-11-12 00:58:56,037 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:58:56,038 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:58:56,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:58:56,038 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 00:58:56,038 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 00:58:56,039 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-12 00:58:56,039 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-12 00:58:56,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:58:56,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:58:56,463 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:58:56,466 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:58:58,171 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:58:58,480 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:58:58,480 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:58:58,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:58:58 BoogieIcfgContainer [2023-11-12 00:58:58,484 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:58:58,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:58:58,487 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:58:58,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:58:58,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:58:51" (1/3) ... [2023-11-12 00:58:58,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731a5412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:58:58, skipping insertion in model container [2023-11-12 00:58:58,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:55" (2/3) ... [2023-11-12 00:58:58,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731a5412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:58:58, skipping insertion in model container [2023-11-12 00:58:58,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:58:58" (3/3) ... [2023-11-12 00:58:58,499 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_compare_harness_negated.i [2023-11-12 00:58:58,521 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:58:58,521 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:58:58,597 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:58:58,605 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=FINITE_AUTOMATA, 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;@4fc6f634, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:58:58,605 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:58:58,611 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 57 states have internal predecessors, (71), 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 00:58:58,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-12 00:58:58,624 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:58:58,625 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:58:58,625 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:58:58,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:58:58,631 INFO L85 PathProgramCache]: Analyzing trace with hash 113032748, now seen corresponding path program 1 times [2023-11-12 00:58:58,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:58:58,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393538031] [2023-11-12 00:58:58,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:58:58,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:58:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:58:59,812 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:58:59,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:58:59,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393538031] [2023-11-12 00:58:59,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393538031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:58:59,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:58:59,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:58:59,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734617804] [2023-11-12 00:58:59,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:58:59,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:58:59,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:58:59,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:58:59,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:58:59,871 INFO L87 Difference]: Start difference. First operand has 101 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 57 states have internal predecessors, (71), 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 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 00:59:00,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:59:00,123 INFO L93 Difference]: Finished difference Result 161 states and 228 transitions. [2023-11-12 00:59:00,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:59:00,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 41 [2023-11-12 00:59:00,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:59:00,141 INFO L225 Difference]: With dead ends: 161 [2023-11-12 00:59:00,142 INFO L226 Difference]: Without dead ends: 116 [2023-11-12 00:59:00,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 00:59:00,160 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 8 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:59:00,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 359 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:59:00,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-12 00:59:00,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 113. [2023-11-12 00:59:00,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 64 states have (on average 1.234375) internal successors, (79), 65 states have internal predecessors, (79), 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 00:59:00,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 154 transitions. [2023-11-12 00:59:00,242 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 154 transitions. Word has length 41 [2023-11-12 00:59:00,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:59:00,249 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 154 transitions. [2023-11-12 00:59:00,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 00:59:00,251 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 154 transitions. [2023-11-12 00:59:00,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-12 00:59:00,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:59:00,257 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:59:00,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:59:00,258 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:59:00,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:59:00,259 INFO L85 PathProgramCache]: Analyzing trace with hash 446973706, now seen corresponding path program 1 times [2023-11-12 00:59:00,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:59:00,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164692488] [2023-11-12 00:59:00,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:59:00,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:59:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:59:00,777 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:59:00,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:59:00,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164692488] [2023-11-12 00:59:00,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164692488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:59:00,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:59:00,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:59:00,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923323065] [2023-11-12 00:59:00,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:59:00,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:59:00,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:59:00,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:59:00,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:59:00,782 INFO L87 Difference]: Start difference. First operand 113 states and 154 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 00:59:00,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:59:00,919 INFO L93 Difference]: Finished difference Result 135 states and 181 transitions. [2023-11-12 00:59:00,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:59:00,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 45 [2023-11-12 00:59:00,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:59:00,922 INFO L225 Difference]: With dead ends: 135 [2023-11-12 00:59:00,923 INFO L226 Difference]: Without dead ends: 119 [2023-11-12 00:59:00,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 00:59:00,924 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:59:00,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 356 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:59:00,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-12 00:59:00,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2023-11-12 00:59:00,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 69 states have internal predecessors, (84), 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 00:59:00,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 161 transitions. [2023-11-12 00:59:00,950 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 161 transitions. Word has length 45 [2023-11-12 00:59:00,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:59:00,950 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 161 transitions. [2023-11-12 00:59:00,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 00:59:00,951 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 161 transitions. [2023-11-12 00:59:00,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-12 00:59:00,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:59:00,954 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:59:00,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:59:00,954 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:59:00,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:59:00,955 INFO L85 PathProgramCache]: Analyzing trace with hash -102091303, now seen corresponding path program 1 times [2023-11-12 00:59:00,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:59:00,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673515585] [2023-11-12 00:59:00,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:59:00,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:59:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:59:01,975 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:59:01,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:59:01,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673515585] [2023-11-12 00:59:01,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673515585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:59:01,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:59:01,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 00:59:01,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357012880] [2023-11-12 00:59:01,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:59:01,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:59:01,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:59:01,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:59:01,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:59:01,982 INFO L87 Difference]: Start difference. First operand 119 states and 161 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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 00:59:02,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:59:02,257 INFO L93 Difference]: Finished difference Result 143 states and 189 transitions. [2023-11-12 00:59:02,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:59:02,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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 46 [2023-11-12 00:59:02,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:59:02,260 INFO L225 Difference]: With dead ends: 143 [2023-11-12 00:59:02,260 INFO L226 Difference]: Without dead ends: 126 [2023-11-12 00:59:02,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 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 00:59:02,262 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 18 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:59:02,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 586 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:59:02,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-12 00:59:02,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 123. [2023-11-12 00:59:02,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 71 states have (on average 1.2112676056338028) internal successors, (86), 72 states have internal predecessors, (86), 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 00:59:02,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 166 transitions. [2023-11-12 00:59:02,278 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 166 transitions. Word has length 46 [2023-11-12 00:59:02,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:59:02,279 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 166 transitions. [2023-11-12 00:59:02,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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 00:59:02,279 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 166 transitions. [2023-11-12 00:59:02,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-12 00:59:02,282 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:59:02,283 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:59:02,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:59:02,283 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:59:02,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:59:02,284 INFO L85 PathProgramCache]: Analyzing trace with hash 695344745, now seen corresponding path program 1 times [2023-11-12 00:59:02,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:59:02,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103905896] [2023-11-12 00:59:02,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:59:02,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:59:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:59:02,990 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-12 00:59:02,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:59:02,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103905896] [2023-11-12 00:59:02,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103905896] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:59:02,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:59:02,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 00:59:02,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186015935] [2023-11-12 00:59:02,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:59:02,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:59:02,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:59:02,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:59:02,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:59:02,993 INFO L87 Difference]: Start difference. First operand 123 states and 166 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 00:59:03,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:59:03,246 INFO L93 Difference]: Finished difference Result 179 states and 236 transitions. [2023-11-12 00:59:03,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 00:59:03,250 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 62 [2023-11-12 00:59:03,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:59:03,253 INFO L225 Difference]: With dead ends: 179 [2023-11-12 00:59:03,253 INFO L226 Difference]: Without dead ends: 139 [2023-11-12 00:59:03,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 00:59:03,256 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 28 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:59:03,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 592 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:59:03,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-12 00:59:03,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 134. [2023-11-12 00:59:03,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 79 states have (on average 1.2151898734177216) internal successors, (96), 80 states have internal predecessors, (96), 41 states have call successors, (41), 11 states have call predecessors, (41), 13 states have return successors, (42), 42 states have call predecessors, (42), 40 states have call successors, (42) [2023-11-12 00:59:03,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 179 transitions. [2023-11-12 00:59:03,281 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 179 transitions. Word has length 62 [2023-11-12 00:59:03,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:59:03,282 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 179 transitions. [2023-11-12 00:59:03,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 00:59:03,283 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 179 transitions. [2023-11-12 00:59:03,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-12 00:59:03,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:59:03,288 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-12 00:59:03,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:59:03,288 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:59:03,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:59:03,289 INFO L85 PathProgramCache]: Analyzing trace with hash -95479498, now seen corresponding path program 1 times [2023-11-12 00:59:03,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:59:03,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884967094] [2023-11-12 00:59:03,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:59:03,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:59:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:59:06,028 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-12 00:59:06,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:59:06,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884967094] [2023-11-12 00:59:06,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884967094] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:59:06,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628847694] [2023-11-12 00:59:06,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:59:06,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:59:06,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:59:06,033 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:59:06,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:59:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:59:06,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 2542 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-12 00:59:06,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:59:07,287 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-12 00:59:07,288 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:59:07,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628847694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:59:07,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:59:07,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 15 [2023-11-12 00:59:07,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530773419] [2023-11-12 00:59:07,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:59:07,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 00:59:07,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:59:07,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 00:59:07,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-11-12 00:59:07,294 INFO L87 Difference]: Start difference. First operand 134 states and 179 transitions. Second operand has 9 states, 6 states have (on average 6.0) internal successors, (36), 8 states have internal predecessors, (36), 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 00:59:07,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:59:07,599 INFO L93 Difference]: Finished difference Result 159 states and 205 transitions. [2023-11-12 00:59:07,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 00:59:07,600 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 6.0) internal successors, (36), 8 states have internal predecessors, (36), 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 67 [2023-11-12 00:59:07,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:59:07,600 INFO L225 Difference]: With dead ends: 159 [2023-11-12 00:59:07,600 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:59:07,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2023-11-12 00:59:07,603 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 19 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:59:07,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 160 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:59:07,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:59:07,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:59:07,604 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 00:59:07,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:59:07,605 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2023-11-12 00:59:07,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:59:07,605 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:59:07,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 6.0) internal successors, (36), 8 states have internal predecessors, (36), 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 00:59:07,605 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:59:07,605 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:59:07,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:59:07,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:59:07,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:59:07,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:59:08,044 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6788 6792) no Hoare annotation was computed. [2023-11-12 00:59:08,044 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 00:59:08,044 INFO L899 garLoopResultBuilder]: For program point L6795-1(line 6795) no Hoare annotation was computed. [2023-11-12 00:59:08,044 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 00:59:08,044 INFO L899 garLoopResultBuilder]: For program point L6798-3(line 6798) no Hoare annotation was computed. [2023-11-12 00:59:08,045 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 00:59:08,045 INFO L899 garLoopResultBuilder]: For program point L6798-1(lines 6798 6799) no Hoare annotation was computed. [2023-11-12 00:59:08,045 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6788 6792) the Hoare annotation is: true [2023-11-12 00:59:08,045 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 00:59:08,045 INFO L899 garLoopResultBuilder]: For program point L6798-5(lines 6798 6799) no Hoare annotation was computed. [2023-11-12 00:59:08,045 INFO L899 garLoopResultBuilder]: For program point L6789-1(line 6789) no Hoare annotation was computed. [2023-11-12 00:59:08,045 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 00:59:08,045 INFO L899 garLoopResultBuilder]: For program point L6790-1(line 6790) no Hoare annotation was computed. [2023-11-12 00:59:08,046 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6870 6875) the Hoare annotation is: true [2023-11-12 00:59:08,046 INFO L899 garLoopResultBuilder]: For program point L6871-1(lines 6871 6873) no Hoare annotation was computed. [2023-11-12 00:59:08,046 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6870 6875) no Hoare annotation was computed. [2023-11-12 00:59:08,047 INFO L895 garLoopResultBuilder]: At program point L6871(lines 6871 6873) the Hoare annotation is: (= |bounded_malloc_#in~size| bounded_malloc_~size) [2023-11-12 00:59:08,047 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2023-11-12 00:59:08,047 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 261) the Hoare annotation is: true [2023-11-12 00:59:08,047 INFO L899 garLoopResultBuilder]: For program point aws_string_bytesEXIT(lines 6230 6234) no Hoare annotation was computed. [2023-11-12 00:59:08,047 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6230 6234) the Hoare annotation is: true [2023-11-12 00:59:08,047 INFO L902 garLoopResultBuilder]: At program point L6232-1(line 6232) the Hoare annotation is: true [2023-11-12 00:59:08,048 INFO L899 garLoopResultBuilder]: For program point L6232-2(line 6232) no Hoare annotation was computed. [2023-11-12 00:59:08,048 INFO L902 garLoopResultBuilder]: At program point L6232(line 6232) the Hoare annotation is: true [2023-11-12 00:59:08,048 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 210 212) the Hoare annotation is: true [2023-11-12 00:59:08,048 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2023-11-12 00:59:08,049 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6877 6879) the Hoare annotation is: true [2023-11-12 00:59:08,049 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6877 6879) no Hoare annotation was computed. [2023-11-12 00:59:08,049 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6240 6245) the Hoare annotation is: true [2023-11-12 00:59:08,049 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6240 6245) no Hoare annotation was computed. [2023-11-12 00:59:08,049 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2023-11-12 00:59:08,049 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 266) the Hoare annotation is: true [2023-11-12 00:59:08,050 INFO L899 garLoopResultBuilder]: For program point L9503(lines 9503 9525) no Hoare annotation was computed. [2023-11-12 00:59:08,050 INFO L899 garLoopResultBuilder]: For program point L7088-1(lines 7087 7100) no Hoare annotation was computed. [2023-11-12 00:59:08,050 INFO L895 garLoopResultBuilder]: At program point L7088(line 7088) the Hoare annotation is: false [2023-11-12 00:59:08,050 INFO L895 garLoopResultBuilder]: At program point L9520(line 9520) the Hoare annotation is: false [2023-11-12 00:59:08,050 INFO L895 garLoopResultBuilder]: At program point L9520-1(line 9520) the Hoare annotation is: false [2023-11-12 00:59:08,050 INFO L899 garLoopResultBuilder]: For program point L9520-2(line 9520) no Hoare annotation was computed. [2023-11-12 00:59:08,051 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 00:59:08,051 INFO L899 garLoopResultBuilder]: For program point L9508-1(lines 9508 9510) no Hoare annotation was computed. [2023-11-12 00:59:08,051 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 00:59:08,051 INFO L899 garLoopResultBuilder]: For program point L9504-3(line 9504) no Hoare annotation was computed. [2023-11-12 00:59:08,051 INFO L899 garLoopResultBuilder]: For program point L9504-5(lines 9504 9505) no Hoare annotation was computed. [2023-11-12 00:59:08,052 INFO L899 garLoopResultBuilder]: For program point L9508-3(line 9508) no Hoare annotation was computed. [2023-11-12 00:59:08,052 INFO L902 garLoopResultBuilder]: At program point L9504(line 9504) the Hoare annotation is: true [2023-11-12 00:59:08,052 INFO L899 garLoopResultBuilder]: For program point L9504-1(lines 9504 9505) no Hoare annotation was computed. [2023-11-12 00:59:08,052 INFO L899 garLoopResultBuilder]: For program point L9508-5(lines 9508 9510) no Hoare annotation was computed. [2023-11-12 00:59:08,052 INFO L902 garLoopResultBuilder]: At program point L9504-2(line 9504) the Hoare annotation is: true [2023-11-12 00:59:08,052 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 00:59:08,053 INFO L899 garLoopResultBuilder]: For program point L9513-1(line 9513) no Hoare annotation was computed. [2023-11-12 00:59:08,055 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:59:08,055 INFO L895 garLoopResultBuilder]: At program point L7098(line 7098) the Hoare annotation is: false [2023-11-12 00:59:08,055 INFO L895 garLoopResultBuilder]: At program point L7094(line 7094) the Hoare annotation is: false [2023-11-12 00:59:08,055 INFO L899 garLoopResultBuilder]: For program point L7098-1(line 7098) no Hoare annotation was computed. [2023-11-12 00:59:08,056 INFO L899 garLoopResultBuilder]: For program point L7094-1(line 7094) no Hoare annotation was computed. [2023-11-12 00:59:08,056 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 00:59:08,056 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:59:08,056 INFO L899 garLoopResultBuilder]: For program point L9510-1(line 9510) no Hoare annotation was computed. [2023-11-12 00:59:08,056 INFO L899 garLoopResultBuilder]: For program point L9514-1(line 9514) no Hoare annotation was computed. [2023-11-12 00:59:08,058 INFO L899 garLoopResultBuilder]: For program point L9514-2(lines 9514 9518) no Hoare annotation was computed. [2023-11-12 00:59:08,058 INFO L899 garLoopResultBuilder]: For program point L9514-3(lines 9503 9525) no Hoare annotation was computed. [2023-11-12 00:59:08,059 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 00:59:08,059 INFO L899 garLoopResultBuilder]: For program point L7095-1(lines 7095 7097) no Hoare annotation was computed. [2023-11-12 00:59:08,059 INFO L895 garLoopResultBuilder]: At program point L7095(lines 7095 7097) the Hoare annotation is: false [2023-11-12 00:59:08,060 INFO L895 garLoopResultBuilder]: At program point L9523(line 9523) the Hoare annotation is: false [2023-11-12 00:59:08,061 INFO L895 garLoopResultBuilder]: At program point L9523-1(line 9523) the Hoare annotation is: false [2023-11-12 00:59:08,061 INFO L899 garLoopResultBuilder]: For program point L7087(lines 7087 7100) no Hoare annotation was computed. [2023-11-12 00:59:08,061 INFO L899 garLoopResultBuilder]: For program point L9515(lines 9515 9517) no Hoare annotation was computed. [2023-11-12 00:59:08,061 INFO L899 garLoopResultBuilder]: For program point L9523-2(line 9523) no Hoare annotation was computed. [2023-11-12 00:59:08,061 INFO L899 garLoopResultBuilder]: For program point L9519-1(lines 9503 9525) no Hoare annotation was computed. [2023-11-12 00:59:08,061 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2023-11-12 00:59:08,062 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2023-11-12 00:59:08,062 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2023-11-12 00:59:08,062 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2023-11-12 00:59:08,062 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 222 224) the Hoare annotation is: true [2023-11-12 00:59:08,067 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2023-11-12 00:59:08,067 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 00:59:08,067 INFO L899 garLoopResultBuilder]: For program point L9185-5(line 9185) no Hoare annotation was computed. [2023-11-12 00:59:08,067 INFO L899 garLoopResultBuilder]: For program point L9185(line 9185) no Hoare annotation was computed. [2023-11-12 00:59:08,067 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 00:59:08,068 INFO L899 garLoopResultBuilder]: For program point L9185-3(line 9185) no Hoare annotation was computed. [2023-11-12 00:59:08,068 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 00:59:08,068 INFO L899 garLoopResultBuilder]: For program point L9206-2(line 9206) no Hoare annotation was computed. [2023-11-12 00:59:08,068 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 00:59:08,068 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 9184 9218) the Hoare annotation is: true [2023-11-12 00:59:08,068 INFO L899 garLoopResultBuilder]: For program point L9186(line 9186) no Hoare annotation was computed. [2023-11-12 00:59:08,068 INFO L899 garLoopResultBuilder]: For program point L9190(lines 9190 9194) no Hoare annotation was computed. [2023-11-12 00:59:08,068 INFO L899 garLoopResultBuilder]: For program point L9186-5(line 9186) no Hoare annotation was computed. [2023-11-12 00:59:08,069 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 00:59:08,069 INFO L899 garLoopResultBuilder]: For program point L9186-3(line 9186) no Hoare annotation was computed. [2023-11-12 00:59:08,069 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 00:59:08,069 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 00:59:08,069 INFO L899 garLoopResultBuilder]: For program point L9207-2(line 9207) no Hoare annotation was computed. [2023-11-12 00:59:08,069 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 00:59:08,069 INFO L899 garLoopResultBuilder]: For program point L9205-2(line 9205) no Hoare annotation was computed. [2023-11-12 00:59:08,070 INFO L899 garLoopResultBuilder]: For program point aws_string_compareEXIT(lines 9184 9218) no Hoare annotation was computed. [2023-11-12 00:59:08,070 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 00:59:08,070 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 00:59:08,070 INFO L899 garLoopResultBuilder]: For program point L9195(lines 9195 9199) no Hoare annotation was computed. [2023-11-12 00:59:08,070 INFO L899 garLoopResultBuilder]: For program point aws_string_compareFINAL(lines 9184 9218) no Hoare annotation was computed. [2023-11-12 00:59:08,070 INFO L899 garLoopResultBuilder]: For program point L9187(lines 9187 9189) no Hoare annotation was computed. [2023-11-12 00:59:08,073 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 00:59:08,075 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:59:08,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:59:08 BoogieIcfgContainer [2023-11-12 00:59:08,080 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:59:08,081 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:59:08,081 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:59:08,083 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:59:08,083 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:58:58" (3/4) ... [2023-11-12 00:59:08,086 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:59:08,089 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2023-11-12 00:59:08,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2023-11-12 00:59:08,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2023-11-12 00:59:08,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2023-11-12 00:59:08,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_bytes [2023-11-12 00:59:08,091 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-12 00:59:08,091 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-12 00:59:08,091 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_compare [2023-11-12 00:59:08,091 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2023-11-12 00:59:08,091 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2023-11-12 00:59:08,114 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 137 nodes and edges [2023-11-12 00:59:08,116 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2023-11-12 00:59:08,119 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2023-11-12 00:59:08,121 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-12 00:59:08,123 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-12 00:59:08,124 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:59:08,126 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-12 00:59:08,128 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:59:08,870 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:59:08,871 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:59:08,871 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:59:08,872 INFO L158 Benchmark]: Toolchain (without parser) took 17179.50ms. Allocated memory was 163.6MB in the beginning and 371.2MB in the end (delta: 207.6MB). Free memory was 111.4MB in the beginning and 64.8MB in the end (delta: 46.6MB). Peak memory consumption was 254.8MB. Max. memory is 16.1GB. [2023-11-12 00:59:08,872 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory is still 63.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:59:08,873 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3839.84ms. Allocated memory was 163.6MB in the beginning and 228.6MB in the end (delta: 65.0MB). Free memory was 111.4MB in the beginning and 132.4MB in the end (delta: -21.1MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. [2023-11-12 00:59:08,873 INFO L158 Benchmark]: Boogie Procedure Inliner took 239.73ms. Allocated memory is still 228.6MB. Free memory was 132.4MB in the beginning and 119.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:59:08,874 INFO L158 Benchmark]: Boogie Preprocessor took 145.05ms. Allocated memory is still 228.6MB. Free memory was 119.8MB in the beginning and 113.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 00:59:08,874 INFO L158 Benchmark]: RCFGBuilder took 2560.90ms. Allocated memory is still 228.6MB. Free memory was 113.6MB in the beginning and 162.1MB in the end (delta: -48.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-12 00:59:08,874 INFO L158 Benchmark]: TraceAbstraction took 9593.67ms. Allocated memory was 228.6MB in the beginning and 371.2MB in the end (delta: 142.6MB). Free memory was 162.1MB in the beginning and 198.0MB in the end (delta: -35.9MB). Peak memory consumption was 105.7MB. Max. memory is 16.1GB. [2023-11-12 00:59:08,875 INFO L158 Benchmark]: Witness Printer took 790.79ms. Allocated memory is still 371.2MB. Free memory was 198.0MB in the beginning and 64.8MB in the end (delta: 133.2MB). Peak memory consumption was 132.1MB. Max. memory is 16.1GB. [2023-11-12 00:59:08,877 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory is still 63.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3839.84ms. Allocated memory was 163.6MB in the beginning and 228.6MB in the end (delta: 65.0MB). Free memory was 111.4MB in the beginning and 132.4MB in the end (delta: -21.1MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 239.73ms. Allocated memory is still 228.6MB. Free memory was 132.4MB in the beginning and 119.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 145.05ms. Allocated memory is still 228.6MB. Free memory was 119.8MB in the beginning and 113.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 2560.90ms. Allocated memory is still 228.6MB. Free memory was 113.6MB in the beginning and 162.1MB in the end (delta: -48.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9593.67ms. Allocated memory was 228.6MB in the beginning and 371.2MB in the end (delta: 142.6MB). Free memory was 162.1MB in the beginning and 198.0MB in the end (delta: -35.9MB). Peak memory consumption was 105.7MB. Max. memory is 16.1GB. * Witness Printer took 790.79ms. Allocated memory is still 371.2MB. Free memory was 198.0MB in the beginning and 64.8MB in the end (delta: 133.2MB). Peak memory consumption was 132.1MB. 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, 101 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.5s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 2053 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1549 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 353 IncrementalHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 504 mSDtfsCounter, 353 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=4, InterpolantAutomatonStates: 31, 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, 5 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 146 PreInvPairs, 151 NumberOfFragments, 272 HoareAnnotationTreeSize, 146 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 43 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 765 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2542 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 121/125 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 00:59:08,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5775ec70-2b31-45bf-b6b5-15e2b9521d0b/bin/utaipan-verify-NcY6lQBIFX/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