./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.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_9f56b135-9996-462e-9f27-47b93c56c313/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56b135-9996-462e-9f27-47b93c56c313/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_9f56b135-9996-462e-9f27-47b93c56c313/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56b135-9996-462e-9f27-47b93c56c313/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56b135-9996-462e-9f27-47b93c56c313/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_9f56b135-9996-462e-9f27-47b93c56c313/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 49bf9fd75d56d44e7e1e54aefea9fad1d2b78cb24b15e9eb5cce5de020ddf3d7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:05:56,682 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:05:56,758 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56b135-9996-462e-9f27-47b93c56c313/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-25 00:05:56,765 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:05:56,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:05:56,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:05:56,794 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:05:56,795 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:05:56,795 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:05:56,796 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:05:56,797 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:05:56,797 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:05:56,798 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:05:56,799 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:05:56,799 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:05:56,800 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:05:56,800 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:05:56,801 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:05:56,802 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:05:56,802 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:05:56,803 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:05:56,805 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:05:56,806 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:05:56,807 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:05:56,807 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:05:56,808 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:05:56,808 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:05:56,809 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:05:56,809 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:05:56,810 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:05:56,811 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:05:56,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:05:56,812 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:05:56,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:05:56,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:05:56,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:05:56,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:05:56,813 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:05:56,814 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:05:56,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:05:56,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:05:56,814 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:05:56,815 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:05:56,816 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:05:56,816 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_9f56b135-9996-462e-9f27-47b93c56c313/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56b135-9996-462e-9f27-47b93c56c313/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49bf9fd75d56d44e7e1e54aefea9fad1d2b78cb24b15e9eb5cce5de020ddf3d7 [2023-11-25 00:05:57,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:05:57,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:05:57,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:05:57,176 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:05:57,176 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:05:57,178 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56b135-9996-462e-9f27-47b93c56c313/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i [2023-11-25 00:06:00,504 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:06:01,131 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:06:01,132 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56b135-9996-462e-9f27-47b93c56c313/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i [2023-11-25 00:06:01,183 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56b135-9996-462e-9f27-47b93c56c313/bin/utaipan-verify-SwPr7d2a91/data/56f46da02/6af6ce6f693b4f599b4f00cad32a57c2/FLAG60d97b253 [2023-11-25 00:06:01,199 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56b135-9996-462e-9f27-47b93c56c313/bin/utaipan-verify-SwPr7d2a91/data/56f46da02/6af6ce6f693b4f599b4f00cad32a57c2 [2023-11-25 00:06:01,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:06:01,214 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:06:01,218 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:06:01,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:06:01,224 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:06:01,225 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:06:01" (1/1) ... [2023-11-25 00:06:01,226 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@547d8a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:01, skipping insertion in model container [2023-11-25 00:06:01,226 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:06:01" (1/1) ... [2023-11-25 00:06:01,360 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:06:01,636 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_9f56b135-9996-462e-9f27-47b93c56c313/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i[4505,4518] [2023-11-25 00:06:01,646 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_9f56b135-9996-462e-9f27-47b93c56c313/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i[4565,4578] [2023-11-25 00:06:02,897 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:02,911 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:02,912 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:02,915 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:02,916 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:02,945 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:02,955 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:02,957 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:02,958 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:03,509 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-25 00:06:03,515 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-25 00:06:03,516 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-25 00:06:03,521 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-25 00:06:03,524 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-25 00:06:03,525 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-25 00:06:03,526 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-25 00:06:03,528 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-25 00:06:03,531 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-25 00:06:03,537 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-25 00:06:03,780 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:03,781 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:03,857 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:03,858 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:03,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:06:04,052 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:06:04,077 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_9f56b135-9996-462e-9f27-47b93c56c313/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i[4505,4518] [2023-11-25 00:06:04,077 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_9f56b135-9996-462e-9f27-47b93c56c313/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i[4565,4578] [2023-11-25 00:06:04,140 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:04,141 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:04,142 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:04,143 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:04,144 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:04,163 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:04,164 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:04,166 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:04,166 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:04,209 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-25 00:06:04,216 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-25 00:06:04,217 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-25 00:06:04,218 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-25 00:06:04,219 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-25 00:06:04,219 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-25 00:06:04,220 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-25 00:06:04,221 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-25 00:06:04,223 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-25 00:06:04,232 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-25 00:06:04,288 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:04,289 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:04,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8265] [2023-11-25 00:06:04,409 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:04,410 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:06:04,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8751-8762] [2023-11-25 00:06:04,444 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:06:04,730 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:04,730 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:04,730 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:04,730 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:04,730 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:04,732 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:04,732 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:04,732 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:04,732 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:04,733 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:04,733 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:04,734 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:04,734 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:04,734 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:04,734 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:04,734 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:04,734 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:04,735 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:04,742 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:06:04,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:04 WrapperNode [2023-11-25 00:06:04,743 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:06:04,745 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:06:04,746 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:06:04,746 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:06:04,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:04" (1/1) ... [2023-11-25 00:06:04,877 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:04" (1/1) ... [2023-11-25 00:06:04,992 INFO L138 Inliner]: procedures = 690, calls = 2655, calls flagged for inlining = 63, calls inlined = 10, statements flattened = 970 [2023-11-25 00:06:04,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:06:04,993 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:06:04,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:06:04,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:06:05,004 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:04" (1/1) ... [2023-11-25 00:06:05,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:04" (1/1) ... [2023-11-25 00:06:05,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:04" (1/1) ... [2023-11-25 00:06:05,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:04" (1/1) ... [2023-11-25 00:06:05,089 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:04" (1/1) ... [2023-11-25 00:06:05,104 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:04" (1/1) ... [2023-11-25 00:06:05,129 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:04" (1/1) ... [2023-11-25 00:06:05,147 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:04" (1/1) ... [2023-11-25 00:06:05,169 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:06:05,170 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:06:05,170 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:06:05,170 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:06:05,171 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:04" (1/1) ... [2023-11-25 00:06:05,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:06:05,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56b135-9996-462e-9f27-47b93c56c313/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:06:05,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56b135-9996-462e-9f27-47b93c56c313/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:06:05,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56b135-9996-462e-9f27-47b93c56c313/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:06:05,273 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-25 00:06:05,273 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-25 00:06:05,273 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-25 00:06:05,273 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-25 00:06:05,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:06:05,274 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-25 00:06:05,274 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-25 00:06:05,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:06:05,275 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-25 00:06:05,275 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-25 00:06:05,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-25 00:06:05,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-25 00:06:05,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:06:05,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:06:05,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:06:05,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:06:05,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:06:05,276 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-25 00:06:05,277 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-25 00:06:05,277 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:06:05,278 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:06:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:06:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-25 00:06:05,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-25 00:06:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:06:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:06:05,279 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-25 00:06:05,279 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-25 00:06:05,279 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-25 00:06:05,279 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-25 00:06:05,280 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2023-11-25 00:06:05,280 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2023-11-25 00:06:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-25 00:06:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-25 00:06:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:06:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:06:05,731 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:06:05,734 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:06:07,148 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:06:07,510 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:06:07,510 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:06:07,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:06:07 BoogieIcfgContainer [2023-11-25 00:06:07,512 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:06:07,515 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:06:07,516 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:06:07,519 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:06:07,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:06:01" (1/3) ... [2023-11-25 00:06:07,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9576ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:06:07, skipping insertion in model container [2023-11-25 00:06:07,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:04" (2/3) ... [2023-11-25 00:06:07,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9576ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:06:07, skipping insertion in model container [2023-11-25 00:06:07,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:06:07" (3/3) ... [2023-11-25 00:06:07,524 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_with_lookup_harness_negated.i [2023-11-25 00:06:07,544 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:06:07,544 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:06:07,609 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:06:07,620 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;@6ed5991b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:06:07,620 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:06:07,625 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) [2023-11-25 00:06:07,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-25 00:06:07,638 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:07,639 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] [2023-11-25 00:06:07,639 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:06:07,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:07,648 INFO L85 PathProgramCache]: Analyzing trace with hash -819088177, now seen corresponding path program 1 times [2023-11-25 00:06:07,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:07,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457859548] [2023-11-25 00:06:07,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:07,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:18,618 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-25 00:06:18,619 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:18,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457859548] [2023-11-25 00:06:18,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457859548] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:06:18,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659697550] [2023-11-25 00:06:18,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:18,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:06:18,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56b135-9996-462e-9f27-47b93c56c313/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:06:18,628 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56b135-9996-462e-9f27-47b93c56c313/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:06:18,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56b135-9996-462e-9f27-47b93c56c313/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-25 00:06:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:19,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 2607 conjuncts, 68 conjunts are in the unsatisfiable core [2023-11-25 00:06:19,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:06:19,968 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 [2023-11-25 00:06:19,983 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 [2023-11-25 00:06:19,995 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 [2023-11-25 00:06:22,148 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-25 00:06:22,148 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 [2023-11-25 00:06:22,161 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-25 00:06:22,161 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 [2023-11-25 00:06:23,493 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-25 00:06:23,494 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 [2023-11-25 00:06:23,536 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 10 proven. 34 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-25 00:06:23,536 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:06:25,238 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 11492 disjunctions. This might take some time... [2023-11-25 00:06:37,361 INFO L192 XnfTransformerHelper]: Simplified to conjunction of 10816 disjunctions.