./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --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 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:21:47,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:21:47,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:21:47,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:21:47,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:21:47,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:21:47,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:21:47,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:21:47,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:21:47,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:21:47,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:21:47,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:21:47,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:21:47,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:21:47,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:21:47,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:21:47,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:21:47,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:21:47,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:21:47,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:21:47,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:21:47,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:21:47,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:21:47,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:21:47,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:21:47,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:21:47,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:21:47,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:21:47,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:21:47,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:21:47,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:21:47,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:21:47,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:21:47,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:21:47,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:21:47,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:21:47,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:21:47,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:21:47,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:21:47,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:21:47,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:21:47,227 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:21:47,254 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:21:47,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:21:47,255 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:21:47,255 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:21:47,256 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:21:47,256 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:21:47,256 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:21:47,257 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:21:47,257 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:21:47,257 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:21:47,258 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:21:47,258 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:21:47,258 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:21:47,258 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:21:47,259 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:21:47,259 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:21:47,259 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:21:47,260 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:21:47,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:21:47,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:21:47,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:21:47,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:21:47,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:21:47,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:21:47,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:21:47,262 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:21:47,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:21:47,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:21:47,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:21:47,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:21:47,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:21:47,264 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:21:47,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:21:47,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:21:47,264 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:21:47,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:21:47,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:21:47,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:21:47,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 [2022-11-03 02:21:47,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:21:47,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:21:47,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:21:47,669 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:21:47,670 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:21:47,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2022-11-03 02:21:47,781 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI/data/6fa71dbe7/ad96f7553b9348779aa34ef849e491cc/FLAG54e5cf3a0 [2022-11-03 02:21:48,804 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:21:48,807 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea6b8-f20b-442b-8460-5a0ddc76599a/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2022-11-03 02:21:48,873 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI/data/6fa71dbe7/ad96f7553b9348779aa34ef849e491cc/FLAG54e5cf3a0 [2022-11-03 02:21:49,183 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI/data/6fa71dbe7/ad96f7553b9348779aa34ef849e491cc [2022-11-03 02:21:49,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:21:49,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:21:49,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:21:49,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:21:49,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:21:49,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:21:49" (1/1) ... [2022-11-03 02:21:49,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2e0f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:49, skipping insertion in model container [2022-11-03 02:21:49,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:21:49" (1/1) ... [2022-11-03 02:21:49,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:21:49,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:21:49,773 WARN L230 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_e4dea6b8-f20b-442b-8460-5a0ddc76599a/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4495,4508] [2022-11-03 02:21:49,782 WARN L230 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_e4dea6b8-f20b-442b-8460-5a0ddc76599a/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4555,4568] [2022-11-03 02:21:50,781 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:50,782 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:50,783 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:50,784 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:50,786 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:50,803 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:50,804 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:50,806 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:50,807 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:51,316 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 02:21:51,317 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 02:21:51,319 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 02:21:51,320 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 02:21:51,321 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 02:21:51,322 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 02:21:51,323 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 02:21:51,324 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 02:21:51,324 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 02:21:51,325 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 02:21:51,517 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 02:21:51,692 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:51,693 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:51,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:21:51,851 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:21:51,880 WARN L230 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_e4dea6b8-f20b-442b-8460-5a0ddc76599a/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4495,4508] [2022-11-03 02:21:51,881 WARN L230 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_e4dea6b8-f20b-442b-8460-5a0ddc76599a/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4555,4568] [2022-11-03 02:21:51,938 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:51,939 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:51,939 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:51,940 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:51,941 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:51,950 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:51,951 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:51,952 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:51,953 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:52,004 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 02:21:52,004 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 02:21:52,005 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 02:21:52,006 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 02:21:52,007 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 02:21:52,007 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 02:21:52,008 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 02:21:52,008 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 02:21:52,009 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 02:21:52,009 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 02:21:52,049 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 02:21:52,160 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:52,160 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:21:52,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:21:52,414 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:21:52,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52 WrapperNode [2022-11-03 02:21:52,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:21:52,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:21:52,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:21:52,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:21:52,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:52,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:52,756 INFO L138 Inliner]: procedures = 691, calls = 2639, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 904 [2022-11-03 02:21:52,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:21:52,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:21:52,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:21:52,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:21:52,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:52,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:52,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:52,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:52,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:52,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:52,881 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:52,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:52,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:21:52,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:21:52,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:21:52,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:21:52,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:52,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:21:52,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:21:52,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:21:52,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:21:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2022-11-03 02:21:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2022-11-03 02:21:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-03 02:21:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-03 02:21:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:21:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-03 02:21:53,005 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-03 02:21:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:21:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 02:21:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 02:21:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:21:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:21:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-11-03 02:21:53,007 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-11-03 02:21:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:21:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:21:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:21:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-03 02:21:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-03 02:21:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-03 02:21:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-03 02:21:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:21:53,009 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:21:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:21:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:21:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:21:53,010 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-03 02:21:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-03 02:21:53,010 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-03 02:21:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-03 02:21:53,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:21:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:21:53,422 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:21:53,425 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:21:55,168 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:21:55,517 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:21:55,517 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:21:55,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:21:55 BoogieIcfgContainer [2022-11-03 02:21:55,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:21:55,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:21:55,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:21:55,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:21:55,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:21:49" (1/3) ... [2022-11-03 02:21:55,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f5a0f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:21:55, skipping insertion in model container [2022-11-03 02:21:55,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (2/3) ... [2022-11-03 02:21:55,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f5a0f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:21:55, skipping insertion in model container [2022-11-03 02:21:55,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:21:55" (3/3) ... [2022-11-03 02:21:55,542 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness.i [2022-11-03 02:21:55,567 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:21:55,567 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:21:55,665 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:21:55,674 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=LoopsAndPotentialCycles, 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;@76a8199e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:21:55,674 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:21:55,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 60 states have (on average 1.2333333333333334) internal successors, (74), 62 states have internal predecessors, (74), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-11-03 02:21:55,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-03 02:21:55,693 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:55,694 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:55,695 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:55,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:55,704 INFO L85 PathProgramCache]: Analyzing trace with hash 485696375, now seen corresponding path program 1 times [2022-11-03 02:21:55,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:21:55,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607257585] [2022-11-03 02:21:55,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:55,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:21:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:12,329 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-03 02:22:12,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:12,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607257585] [2022-11-03 02:22:12,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607257585] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:22:12,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033433714] [2022-11-03 02:22:12,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:12,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:12,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:12,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:22:12,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea6b8-f20b-442b-8460-5a0ddc76599a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:22:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:13,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 2705 conjuncts, 117 conjunts are in the unsatisfiable core [2022-11-03 02:22:13,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:13,835 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 9 [2022-11-03 02:22:23,241 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:23,241 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 60 [2022-11-03 02:22:23,301 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:23,302 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 17 [2022-11-03 02:22:23,574 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 12 proven. 57 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-03 02:22:23,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:22:26,758 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-11-03 02:31:17,961 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.