./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/bin/utaipan-verify-DbMuA5NWw2 --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 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:40:05,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:40:05,928 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 12:40:05,936 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:40:05,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:40:05,980 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:40:05,981 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:40:05,982 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:40:05,983 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:40:05,985 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:40:05,985 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:40:05,986 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:40:05,986 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:40:05,987 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:40:05,987 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:40:05,988 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:40:05,988 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:40:05,992 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:40:05,992 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:40:05,993 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:40:05,993 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:40:05,998 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:40:05,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:40:05,999 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:40:05,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:40:05,999 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:40:05,999 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:40:06,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:40:06,000 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:40:06,000 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:40:06,001 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:40:06,001 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:40:06,001 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:40:06,002 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:40:06,003 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:40:06,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:40:06,004 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:40:06,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:40:06,006 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:40:06,006 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:40:06,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:40:06,007 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:40:06,008 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:40:06,008 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:40:06,008 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_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2024-11-02 12:40:06,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:40:06,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:40:06,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:40:06,441 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:40:06,443 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:40:06,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i Unable to find full path for "g++" [2024-11-02 12:40:08,561 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:40:09,150 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:40:09,154 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2024-11-02 12:40:09,206 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/bin/utaipan-verify-DbMuA5NWw2/data/baa1b3f98/b25a0deca43947008c70ecf27497fea4/FLAGb2b90da96 [2024-11-02 12:40:09,657 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/bin/utaipan-verify-DbMuA5NWw2/data/baa1b3f98/b25a0deca43947008c70ecf27497fea4 [2024-11-02 12:40:09,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:40:09,665 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:40:09,667 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:40:09,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:40:09,677 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:40:09,678 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:40:09" (1/1) ... [2024-11-02 12:40:09,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4374bcd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:09, skipping insertion in model container [2024-11-02 12:40:09,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:40:09" (1/1) ... [2024-11-02 12:40:09,849 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:40:10,297 WARN L251 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_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2024-11-02 12:40:10,306 WARN L251 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_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2024-11-02 12:40:11,512 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:11,514 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:11,516 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:11,517 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:11,521 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:11,541 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:11,542 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:11,544 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:11,545 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:11,547 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:11,548 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:11,549 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:11,549 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,205 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,206 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,212 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,225 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:40:12,367 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:40:12,390 WARN L251 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_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2024-11-02 12:40:12,391 WARN L251 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_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2024-11-02 12:40:12,502 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,503 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,504 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,504 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,506 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,524 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,526 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,528 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,532 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,533 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,534 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,536 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,537 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,660 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,661 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,663 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,670 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:40:12,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2024-11-02 12:40:12,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:40:13,106 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:40:13,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:13 WrapperNode [2024-11-02 12:40:13,107 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:40:13,109 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:40:13,109 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:40:13,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:40:13,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:13" (1/1) ... [2024-11-02 12:40:13,223 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:13" (1/1) ... [2024-11-02 12:40:13,323 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 654 [2024-11-02 12:40:13,324 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:40:13,325 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:40:13,325 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:40:13,325 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:40:13,337 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:13" (1/1) ... [2024-11-02 12:40:13,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:13" (1/1) ... [2024-11-02 12:40:13,347 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:13" (1/1) ... [2024-11-02 12:40:13,348 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:13" (1/1) ... [2024-11-02 12:40:13,393 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:13" (1/1) ... [2024-11-02 12:40:13,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:13" (1/1) ... [2024-11-02 12:40:13,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:13" (1/1) ... [2024-11-02 12:40:13,427 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:13" (1/1) ... [2024-11-02 12:40:13,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:40:13,451 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:40:13,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:40:13,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:40:13,455 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:13" (1/1) ... [2024-11-02 12:40:13,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:40:13,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:40:13,511 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:40:13,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:40:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:40:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-02 12:40:13,556 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-02 12:40:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-02 12:40:13,556 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-02 12:40:13,557 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-02 12:40:13,557 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-02 12:40:13,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 12:40:13,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:40:13,558 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-02 12:40:13,558 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-02 12:40:13,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-02 12:40:13,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-02 12:40:13,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:40:13,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:40:13,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 12:40:13,559 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-02 12:40:13,559 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-02 12:40:13,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:40:13,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:40:13,559 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-02 12:40:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-02 12:40:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-02 12:40:13,561 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-02 12:40:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 12:40:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-02 12:40:13,561 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-02 12:40:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:40:13,562 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:40:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-02 12:40:13,562 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-02 12:40:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:40:13,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 12:40:13,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-02 12:40:13,564 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-02 12:40:13,564 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-02 12:40:13,564 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-02 12:40:13,564 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-02 12:40:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-02 12:40:13,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-02 12:40:13,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:40:13,566 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-02 12:40:13,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-02 12:40:13,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:40:13,955 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:40:13,958 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:40:18,392 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2024-11-02 12:40:18,393 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:40:18,780 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:40:18,781 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:40:18,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:40:18 BoogieIcfgContainer [2024-11-02 12:40:18,781 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:40:18,784 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:40:18,784 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:40:18,788 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:40:18,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:40:09" (1/3) ... [2024-11-02 12:40:18,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41968f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:40:18, skipping insertion in model container [2024-11-02 12:40:18,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:13" (2/3) ... [2024-11-02 12:40:18,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41968f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:40:18, skipping insertion in model container [2024-11-02 12:40:18,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:40:18" (3/3) ... [2024-11-02 12:40:18,795 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2024-11-02 12:40:18,817 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:40:18,818 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:40:18,925 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:40:18,937 INFO L333 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, 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;@15688003, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:40:18,938 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:40:18,944 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 73 states have (on average 1.1369863013698631) internal successors, (83), 74 states have internal predecessors, (83), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-02 12:40:18,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-02 12:40:18,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:18,957 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 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] [2024-11-02 12:40:18,957 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:40:18,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:18,964 INFO L85 PathProgramCache]: Analyzing trace with hash -486571369, now seen corresponding path program 1 times [2024-11-02 12:40:18,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:40:18,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116613910] [2024-11-02 12:40:18,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:18,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:40:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:29,909 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-02 12:40:29,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:40:29,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116613910] [2024-11-02 12:40:29,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116613910] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:40:29,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104577512] [2024-11-02 12:40:29,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:29,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:40:29,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:40:29,916 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:40:29,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bb87fa-293c-4aa3-a6c7-a6deca5925ab/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:40:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:37,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 3969 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:40:37,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:40:37,851 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-02 12:40:37,852 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:40:37,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104577512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:40:37,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:40:37,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-02 12:40:37,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366500604] [2024-11-02 12:40:37,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:40:37,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:40:37,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:40:37,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:40:37,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:40:37,897 INFO L87 Difference]: Start difference. First operand has 151 states, 73 states have (on average 1.1369863013698631) internal successors, (83), 74 states have internal predecessors, (83), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11)