./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_1472d964-35e6-4108-b862-1d726bdbf5cf/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1472d964-35e6-4108-b862-1d726bdbf5cf/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1472d964-35e6-4108-b862-1d726bdbf5cf/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1472d964-35e6-4108-b862-1d726bdbf5cf/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1472d964-35e6-4108-b862-1d726bdbf5cf/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1472d964-35e6-4108-b862-1d726bdbf5cf/bin/utaipan-verify-SwPr7d2a91 --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 01ad56e04b6ab93ff162b70d622a1dbeae0350a0f6dc141a393bf37a9fe53f01 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:55:44,271 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:55:44,370 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1472d964-35e6-4108-b862-1d726bdbf5cf/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:55:44,381 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:55:44,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:55:44,430 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:55:44,434 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:55:44,435 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:55:44,436 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:55:44,442 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:55:44,443 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:55:44,444 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:55:44,445 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:55:44,447 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:55:44,447 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:55:44,448 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:55:44,448 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:55:44,449 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:55:44,449 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:55:44,450 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:55:44,451 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:55:44,451 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:55:44,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:55:44,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:55:44,454 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:55:44,455 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:55:44,455 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:55:44,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:55:44,456 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:55:44,457 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:55:44,458 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:55:44,459 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:55:44,459 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:55:44,459 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:55:44,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:55:44,460 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:55:44,461 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:55:44,461 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:55:44,462 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:55:44,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:55:44,462 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:55:44,463 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:55:44,463 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:55:44,463 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:55:44,464 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_1472d964-35e6-4108-b862-1d726bdbf5cf/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1472d964-35e6-4108-b862-1d726bdbf5cf/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01ad56e04b6ab93ff162b70d622a1dbeae0350a0f6dc141a393bf37a9fe53f01 [2023-11-24 23:55:44,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:55:44,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:55:44,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:55:44,794 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:55:44,794 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:55:44,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1472d964-35e6-4108-b862-1d726bdbf5cf/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2023-11-24 23:55:48,116 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:55:48,806 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:55:48,806 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1472d964-35e6-4108-b862-1d726bdbf5cf/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2023-11-24 23:55:48,851 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1472d964-35e6-4108-b862-1d726bdbf5cf/bin/utaipan-verify-SwPr7d2a91/data/38bfc7694/7c3326bcc1814a509f9579709d056b3e/FLAGeab5b8874 [2023-11-24 23:55:48,874 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1472d964-35e6-4108-b862-1d726bdbf5cf/bin/utaipan-verify-SwPr7d2a91/data/38bfc7694/7c3326bcc1814a509f9579709d056b3e [2023-11-24 23:55:48,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:55:48,879 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:55:48,881 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:55:48,882 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:55:48,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:55:48,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:55:48" (1/1) ... [2023-11-24 23:55:48,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc583a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:48, skipping insertion in model container [2023-11-24 23:55:48,893 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:55:48" (1/1) ... [2023-11-24 23:55:49,069 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:55:49,372 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_1472d964-35e6-4108-b862-1d726bdbf5cf/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4505,4518] [2023-11-24 23:55:49,383 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_1472d964-35e6-4108-b862-1d726bdbf5cf/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4565,4578] [2023-11-24 23:55:50,760 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:50,761 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:50,761 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:50,762 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:50,764 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:50,778 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:50,779 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:50,782 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:50,782 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:51,372 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 23:55:51,374 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 23:55:51,375 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 23:55:51,377 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 23:55:51,379 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 23:55:51,379 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 23:55:51,380 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 23:55:51,381 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 23:55:51,382 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 23:55:51,382 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 23:55:51,584 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:51,585 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:51,656 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:51,662 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:51,766 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:55:51,853 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:55:51,876 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_1472d964-35e6-4108-b862-1d726bdbf5cf/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4505,4518] [2023-11-24 23:55:51,877 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_1472d964-35e6-4108-b862-1d726bdbf5cf/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4565,4578] [2023-11-24 23:55:51,939 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:51,940 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:51,940 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:51,945 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:51,946 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:51,959 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:51,968 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:51,970 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:51,970 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:52,026 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 23:55:52,027 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 23:55:52,028 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 23:55:52,029 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 23:55:52,030 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 23:55:52,031 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 23:55:52,031 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 23:55:52,032 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 23:55:52,033 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 23:55:52,033 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 23:55:52,075 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:52,076 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:52,193 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8297] [2023-11-24 23:55:52,194 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:52,195 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:55:52,216 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8783-8794] [2023-11-24 23:55:52,237 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:55:52,473 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:52,474 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:52,474 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:52,474 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:52,474 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:52,474 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:52,475 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:52,475 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:52,475 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:52,475 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:52,475 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:52,475 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:52,476 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:52,476 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:52,476 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:52,476 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:52,476 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:52,477 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:52,484 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:55:52,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:52 WrapperNode [2023-11-24 23:55:52,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:55:52,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:55:52,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:55:52,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:55:52,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:52" (1/1) ... [2023-11-24 23:55:52,678 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:52" (1/1) ... [2023-11-24 23:55:52,784 INFO L138 Inliner]: procedures = 690, calls = 2649, calls flagged for inlining = 63, calls inlined = 10, statements flattened = 958 [2023-11-24 23:55:52,789 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:55:52,790 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:55:52,790 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:55:52,790 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:55:52,801 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:52" (1/1) ... [2023-11-24 23:55:52,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:52" (1/1) ... [2023-11-24 23:55:52,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:52" (1/1) ... [2023-11-24 23:55:52,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:52" (1/1) ... [2023-11-24 23:55:52,893 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:52" (1/1) ... [2023-11-24 23:55:52,903 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:52" (1/1) ... [2023-11-24 23:55:52,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:52" (1/1) ... [2023-11-24 23:55:52,916 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:52" (1/1) ... [2023-11-24 23:55:52,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:55:52,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:55:52,929 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:55:52,929 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:55:52,930 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:52" (1/1) ... [2023-11-24 23:55:52,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:55:52,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1472d964-35e6-4108-b862-1d726bdbf5cf/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:55:52,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1472d964-35e6-4108-b862-1d726bdbf5cf/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:55:53,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1472d964-35e6-4108-b862-1d726bdbf5cf/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:55:53,033 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-24 23:55:53,033 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-24 23:55:53,034 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-24 23:55:53,034 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-24 23:55:53,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:55:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-24 23:55:53,035 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-24 23:55:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:55:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-24 23:55:53,035 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-24 23:55:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:55:53,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:55:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:55:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:55:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:55:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:55:53,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:55:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-24 23:55:53,037 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-24 23:55:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:55:53,038 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:55:53,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:55:53,039 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-24 23:55:53,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-24 23:55:53,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:55:53,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:55:53,040 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-24 23:55:53,040 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-24 23:55:53,041 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-24 23:55:53,041 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-24 23:55:53,042 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2023-11-24 23:55:53,042 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2023-11-24 23:55:53,042 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-24 23:55:53,042 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-24 23:55:53,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:55:53,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:55:53,387 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:55:53,389 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:55:55,002 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:55:55,323 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:55:55,323 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:55:55,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:55:55 BoogieIcfgContainer [2023-11-24 23:55:55,325 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:55:55,328 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:55:55,328 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:55:55,332 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:55:55,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:55:48" (1/3) ... [2023-11-24 23:55:55,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dcae976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:55:55, skipping insertion in model container [2023-11-24 23:55:55,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:52" (2/3) ... [2023-11-24 23:55:55,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dcae976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:55:55, skipping insertion in model container [2023-11-24 23:55:55,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:55:55" (3/3) ... [2023-11-24 23:55:55,335 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_with_lookup_harness.i [2023-11-24 23:55:55,358 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:55:55,358 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:55:55,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:55:55,424 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;@708e8c31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:55:55,424 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:55:55,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 61 states have (on average 1.180327868852459) internal successors, (72), 62 states have internal predecessors, (72), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-24 23:55:55,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-24 23:55:55,474 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:55,475 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:55:55,476 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:55:55,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:55,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1005803546, now seen corresponding path program 1 times [2023-11-24 23:55:55,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:55,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266784634] [2023-11-24 23:55:55,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:55,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:05,697 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-24 23:56:05,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:05,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266784634] [2023-11-24 23:56:05,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266784634] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:56:05,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615314627] [2023-11-24 23:56:05,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:05,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:56:05,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1472d964-35e6-4108-b862-1d726bdbf5cf/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:56:05,708 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1472d964-35e6-4108-b862-1d726bdbf5cf/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:56:05,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1472d964-35e6-4108-b862-1d726bdbf5cf/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:56:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:06,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 2595 conjuncts, 68 conjunts are in the unsatisfiable core [2023-11-24 23:56:06,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:56:07,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-24 23:56:07,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-24 23:56:07,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-24 23:56:09,325 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-24 23:56:09,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2023-11-24 23:56:09,338 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-24 23:56:09,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2023-11-24 23:56:10,693 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:56:10,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2023-11-24 23:56:10,738 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 10 proven. 34 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:56:10,738 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:56:12,408 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 11492 disjunctions. This might take some time... [2023-11-24 23:56:22,648 INFO L192 XnfTransformerHelper]: Simplified to conjunction of 10816 disjunctions.