./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_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_deec6acf-4049-4afe-bd02-54b011a53c6b/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deec6acf-4049-4afe-bd02-54b011a53c6b/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_deec6acf-4049-4afe-bd02-54b011a53c6b/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deec6acf-4049-4afe-bd02-54b011a53c6b/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deec6acf-4049-4afe-bd02-54b011a53c6b/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_deec6acf-4049-4afe-bd02-54b011a53c6b/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 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:54:44,972 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:54:45,073 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deec6acf-4049-4afe-bd02-54b011a53c6b/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:54:45,083 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:54:45,083 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:54:45,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:54:45,138 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:54:45,139 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:54:45,140 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:54:45,145 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:54:45,145 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:54:45,147 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:54:45,147 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:54:45,149 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:54:45,149 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:54:45,150 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:54:45,150 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:54:45,151 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:54:45,151 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:54:45,152 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:54:45,152 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:54:45,153 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:54:45,154 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:54:45,155 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:54:45,155 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:54:45,156 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:54:45,156 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:54:45,156 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:54:45,157 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:54:45,157 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:54:45,159 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:54:45,159 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:54:45,159 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:54:45,159 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:54:45,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:54:45,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:54:45,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:54:45,161 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:54:45,184 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:54:45,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:54:45,185 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:54:45,185 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:54:45,186 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:54:45,186 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:54:45,187 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_deec6acf-4049-4afe-bd02-54b011a53c6b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deec6acf-4049-4afe-bd02-54b011a53c6b/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd [2023-11-24 23:54:45,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:54:45,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:54:45,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:54:45,558 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:54:45,558 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:54:45,559 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deec6acf-4049-4afe-bd02-54b011a53c6b/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2023-11-24 23:54:48,624 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:54:49,310 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:54:49,310 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deec6acf-4049-4afe-bd02-54b011a53c6b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2023-11-24 23:54:49,354 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deec6acf-4049-4afe-bd02-54b011a53c6b/bin/utaipan-verify-SwPr7d2a91/data/ed3b96bff/621217029a714cc4a002612e7e5e3052/FLAG1d3f46d69 [2023-11-24 23:54:49,373 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deec6acf-4049-4afe-bd02-54b011a53c6b/bin/utaipan-verify-SwPr7d2a91/data/ed3b96bff/621217029a714cc4a002612e7e5e3052 [2023-11-24 23:54:49,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:54:49,382 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:54:49,386 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:54:49,386 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:54:49,392 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:54:49,392 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:54:49" (1/1) ... [2023-11-24 23:54:49,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb87595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:49, skipping insertion in model container [2023-11-24 23:54:49,394 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:54:49" (1/1) ... [2023-11-24 23:54:49,592 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:54:49,863 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_deec6acf-4049-4afe-bd02-54b011a53c6b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2023-11-24 23:54:49,877 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_deec6acf-4049-4afe-bd02-54b011a53c6b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2023-11-24 23:54:50,969 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:50,969 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:50,970 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:50,971 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:50,972 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:50,988 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:50,989 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:50,991 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:50,992 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:51,458 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 23:54:51,459 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 23:54:51,461 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 23:54:51,463 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 23:54:51,465 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 23:54:51,466 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 23:54:51,467 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 23:54:51,467 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 23:54:51,468 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 23:54:51,469 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 23:54:51,795 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:51,797 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:51,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:54:52,050 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:54:52,075 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_deec6acf-4049-4afe-bd02-54b011a53c6b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2023-11-24 23:54:52,076 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_deec6acf-4049-4afe-bd02-54b011a53c6b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2023-11-24 23:54:52,129 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:52,129 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:52,129 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:52,130 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:52,132 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:52,148 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:52,149 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:52,153 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:52,154 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:52,206 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 23:54:52,207 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 23:54:52,208 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 23:54:52,209 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 23:54:52,210 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 23:54:52,210 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 23:54:52,211 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 23:54:52,211 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 23:54:52,212 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 23:54:52,213 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 23:54:52,327 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-11-24 23:54:52,328 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:52,329 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:54:52,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-11-24 23:54:52,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:54:52,638 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:52,638 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:52,638 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:52,638 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:52,638 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:52,638 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:52,639 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:52,639 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:52,639 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:52,639 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:52,639 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:52,639 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:52,639 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:52,640 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:52,640 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:52,640 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:52,640 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:52,640 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:52,648 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:54:52,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:52 WrapperNode [2023-11-24 23:54:52,649 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:54:52,650 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:54:52,650 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:54:52,650 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:54:52,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:52" (1/1) ... [2023-11-24 23:54:52,759 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:52" (1/1) ... [2023-11-24 23:54:52,875 INFO L138 Inliner]: procedures = 690, calls = 2654, calls flagged for inlining = 65, calls inlined = 11, statements flattened = 934 [2023-11-24 23:54:52,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:54:52,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:54:52,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:54:52,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:54:52,887 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:52" (1/1) ... [2023-11-24 23:54:52,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:52" (1/1) ... [2023-11-24 23:54:52,897 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:52" (1/1) ... [2023-11-24 23:54:52,897 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:52" (1/1) ... [2023-11-24 23:54:52,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:52" (1/1) ... [2023-11-24 23:54:52,970 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:52" (1/1) ... [2023-11-24 23:54:52,997 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:52" (1/1) ... [2023-11-24 23:54:53,013 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:52" (1/1) ... [2023-11-24 23:54:53,040 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:54:53,041 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:54:53,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:54:53,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:54:53,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:52" (1/1) ... [2023-11-24 23:54:53,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:54:53,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deec6acf-4049-4afe-bd02-54b011a53c6b/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:54:53,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deec6acf-4049-4afe-bd02-54b011a53c6b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:54:53,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deec6acf-4049-4afe-bd02-54b011a53c6b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:54:53,128 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-24 23:54:53,128 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-24 23:54:53,128 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-24 23:54:53,128 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-24 23:54:53,128 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 23:54:53,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:54:53,129 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-24 23:54:53,129 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-24 23:54:53,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:54:53,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:54:53,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:54:53,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:54:53,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:54:53,131 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-24 23:54:53,131 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-24 23:54:53,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:54:53,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:54:53,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:54:53,132 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-24 23:54:53,132 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-24 23:54:53,132 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-24 23:54:53,133 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-24 23:54:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:54:53,134 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:54:53,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:54:53,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:54:53,135 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2023-11-24 23:54:53,135 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2023-11-24 23:54:53,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:54:53,136 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-24 23:54:53,136 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-24 23:54:53,136 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-24 23:54:53,137 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-24 23:54:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:54:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:54:53,469 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:54:53,471 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:54:54,971 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:54:55,514 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:54:55,514 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:54:55,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:54:55 BoogieIcfgContainer [2023-11-24 23:54:55,516 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:54:55,519 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:54:55,519 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:54:55,523 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:54:55,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:54:49" (1/3) ... [2023-11-24 23:54:55,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c53f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:54:55, skipping insertion in model container [2023-11-24 23:54:55,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:52" (2/3) ... [2023-11-24 23:54:55,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c53f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:54:55, skipping insertion in model container [2023-11-24 23:54:55,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:54:55" (3/3) ... [2023-11-24 23:54:55,529 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_byte_buf_harness.i [2023-11-24 23:54:55,549 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:54:55,549 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:54:55,614 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:54:55,627 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;@47775976, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:54:55,627 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:54:55,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 63 states have internal predecessors, (74), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-24 23:54:55,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-24 23:54:55,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:54:55,646 INFO L195 NwaCegarLoop]: trace histogram [9, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:54:55,647 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:54:55,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:54:55,654 INFO L85 PathProgramCache]: Analyzing trace with hash -199054923, now seen corresponding path program 1 times [2023-11-24 23:54:55,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:54:55,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236029678] [2023-11-24 23:54:55,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:54:55,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:54:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:09,506 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-24 23:55:09,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:09,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236029678] [2023-11-24 23:55:09,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236029678] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:55:09,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817895092] [2023-11-24 23:55:09,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:09,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:55:09,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deec6acf-4049-4afe-bd02-54b011a53c6b/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:55:09,516 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deec6acf-4049-4afe-bd02-54b011a53c6b/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:55:09,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deec6acf-4049-4afe-bd02-54b011a53c6b/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:55:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:10,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 2704 conjuncts, 142 conjunts are in the unsatisfiable core [2023-11-24 23:55:10,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:55:10,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-24 23:55:10,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 23:55:10,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 23:55:12,908 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-24 23:55:12,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 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 23:55:12,922 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-24 23:55:12,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 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 23:55:13,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 23:55:14,521 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2023-11-24 23:55:14,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 29 [2023-11-24 23:55:14,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:55:16,370 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:55:16,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 29 [2023-11-24 23:55:16,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2023-11-24 23:55:16,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2023-11-24 23:55:24,040 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 20 proven. 53 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-24 23:55:24,040 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:55:25,173 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 11492 disjunctions. This might take some time...