./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 a0165632 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_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/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_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje --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-a016563 [2024-11-09 05:26:39,794 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:26:39,895 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 05:26:39,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:26:39,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:26:39,941 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:26:39,941 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:26:39,942 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:26:39,943 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:26:39,945 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:26:39,945 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:26:39,946 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:26:39,946 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:26:39,947 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:26:39,948 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:26:39,949 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:26:39,949 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:26:39,950 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:26:39,954 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:26:39,954 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:26:39,955 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:26:39,955 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:26:39,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:26:39,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:26:39,957 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:26:39,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:26:39,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:26:39,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:26:39,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:26:39,958 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:26:39,959 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:26:39,963 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:26:39,963 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:26:39,963 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:26:39,964 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:26:39,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:26:39,964 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:26:39,964 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:26:39,965 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:26:39,965 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:26:39,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:26:39,965 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:26:39,966 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:26:39,967 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:26:39,967 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_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2024-11-09 05:26:40,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:26:40,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:26:40,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:26:40,331 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:26:40,332 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:26:40,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i Unable to find full path for "g++" [2024-11-09 05:26:42,250 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:26:42,836 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:26:42,837 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2024-11-09 05:26:42,884 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/data/7ababc07b/254877f807cc447fa5015d7b1dc0dd54/FLAGfe2e61eea [2024-11-09 05:26:42,906 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/data/7ababc07b/254877f807cc447fa5015d7b1dc0dd54 [2024-11-09 05:26:42,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:26:42,911 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:26:42,914 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:26:42,915 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:26:42,921 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:26:42,922 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:26:42" (1/1) ... [2024-11-09 05:26:42,923 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d193602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:26:42, skipping insertion in model container [2024-11-09 05:26:42,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:26:42" (1/1) ... [2024-11-09 05:26:43,076 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:26:43,427 WARN L250 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_3bded31b-568e-4681-aa16-e2de7bd7a24f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2024-11-09 05:26:43,435 WARN L250 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_3bded31b-568e-4681-aa16-e2de7bd7a24f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2024-11-09 05:26:44,534 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:44,536 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:44,537 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:44,539 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:44,540 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:44,567 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:44,568 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:44,573 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:44,573 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:44,578 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:44,580 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:44,581 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:44,581 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,148 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,149 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,158 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,166 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:26:45,265 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:26:45,280 WARN L250 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_3bded31b-568e-4681-aa16-e2de7bd7a24f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2024-11-09 05:26:45,281 WARN L250 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_3bded31b-568e-4681-aa16-e2de7bd7a24f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2024-11-09 05:26:45,343 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,344 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,344 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,345 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,346 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,354 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,355 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,356 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,360 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,362 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,363 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,367 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,368 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,552 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,552 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,553 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,573 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:26:45,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2024-11-09 05:26:45,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:26:45,904 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:26:45,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:26:45 WrapperNode [2024-11-09 05:26:45,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:26:45,906 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:26:45,906 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:26:45,907 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:26:45,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:26:45" (1/1) ... [2024-11-09 05:26:46,007 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:26:45" (1/1) ... [2024-11-09 05:26:46,100 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 653 [2024-11-09 05:26:46,100 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:26:46,101 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:26:46,101 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:26:46,101 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:26:46,119 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:26:45" (1/1) ... [2024-11-09 05:26:46,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:26:45" (1/1) ... [2024-11-09 05:26:46,140 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:26:45" (1/1) ... [2024-11-09 05:26:46,140 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:26:45" (1/1) ... [2024-11-09 05:26:46,187 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:26:45" (1/1) ... [2024-11-09 05:26:46,197 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:26:45" (1/1) ... [2024-11-09 05:26:46,209 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:26:45" (1/1) ... [2024-11-09 05:26:46,217 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:26:45" (1/1) ... [2024-11-09 05:26:46,225 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:26:46,226 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:26:46,226 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:26:46,227 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:26:46,228 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:26:45" (1/1) ... [2024-11-09 05:26:46,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:26:46,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:26:46,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:26:46,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:26:46,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:26:46,306 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-09 05:26:46,306 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-09 05:26:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-09 05:26:46,307 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-09 05:26:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 05:26:46,307 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 05:26:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 05:26:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:26:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-09 05:26:46,308 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-09 05:26:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:26:46,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:26:46,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:26:46,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:26:46,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 05:26:46,311 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-09 05:26:46,311 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-09 05:26:46,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:26:46,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:26:46,312 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 05:26:46,312 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 05:26:46,312 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-09 05:26:46,312 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-09 05:26:46,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 05:26:46,312 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-09 05:26:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-09 05:26:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:26:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:26:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-09 05:26:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-09 05:26:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:26:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:26:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 05:26:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-09 05:26:46,315 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-09 05:26:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-09 05:26:46,316 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-09 05:26:46,316 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-09 05:26:46,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-09 05:26:46,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:26:46,316 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-09 05:26:46,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-09 05:26:46,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:26:46,636 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:26:46,639 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:26:50,925 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-11-09 05:26:50,926 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:26:51,357 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:26:51,357 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:26:51,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:26:51 BoogieIcfgContainer [2024-11-09 05:26:51,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:26:51,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:26:51,360 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:26:51,364 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:26:51,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:26:42" (1/3) ... [2024-11-09 05:26:51,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ab1c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:26:51, skipping insertion in model container [2024-11-09 05:26:51,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:26:45" (2/3) ... [2024-11-09 05:26:51,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ab1c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:26:51, skipping insertion in model container [2024-11-09 05:26:51,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:26:51" (3/3) ... [2024-11-09 05:26:51,368 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2024-11-09 05:26:51,388 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:26:51,388 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:26:51,485 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:26:51,493 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;@488b7cc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:26:51,493 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:26:51,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 75 states have (on average 1.1466666666666667) internal successors, (86), 76 states have internal predecessors, (86), 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) [2024-11-09 05:26:51,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 05:26:51,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:26:51,512 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] [2024-11-09 05:26:51,512 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:26:51,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:26:51,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1355032269, now seen corresponding path program 1 times [2024-11-09 05:26:51,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:26:51,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220382967] [2024-11-09 05:26:51,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:26:51,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:26:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:27:01,464 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 05:27:01,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:27:01,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220382967] [2024-11-09 05:27:01,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220382967] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:27:01,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270321302] [2024-11-09 05:27:01,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:27:01,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:27:01,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:27:01,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:27:01,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:27:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:27:08,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 3969 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:27:08,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:27:09,091 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:27:09,091 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:27:09,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270321302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:27:09,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:27:09,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-09 05:27:09,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362224827] [2024-11-09 05:27:09,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:27:09,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:27:09,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:27:09,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:27:09,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:27:09,138 INFO L87 Difference]: Start difference. First operand has 153 states, 75 states have (on average 1.1466666666666667) internal successors, (86), 76 states have internal predecessors, (86), 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) [2024-11-09 05:27:11,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:27:13,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:27:15,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:27:17,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:27:17,233 INFO L93 Difference]: Finished difference Result 277 states and 404 transitions. [2024-11-09 05:27:17,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:27:17,236 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 54 [2024-11-09 05:27:17,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:27:17,247 INFO L225 Difference]: With dead ends: 277 [2024-11-09 05:27:17,247 INFO L226 Difference]: Without dead ends: 153 [2024-11-09 05:27:17,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:27:17,254 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 30 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:27:17,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 618 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2024-11-09 05:27:17,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-09 05:27:17,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2024-11-09 05:27:17,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 75 states have (on average 1.1333333333333333) internal successors, (85), 77 states have internal predecessors, (85), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2024-11-09 05:27:17,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 214 transitions. [2024-11-09 05:27:17,321 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 214 transitions. Word has length 54 [2024-11-09 05:27:17,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:27:17,321 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 214 transitions. [2024-11-09 05:27:17,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2024-11-09 05:27:17,322 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 214 transitions. [2024-11-09 05:27:17,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 05:27:17,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:27:17,325 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 3, 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] [2024-11-09 05:27:17,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:27:17,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:27:17,526 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:27:17,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:27:17,527 INFO L85 PathProgramCache]: Analyzing trace with hash 785653286, now seen corresponding path program 1 times [2024-11-09 05:27:17,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:27:17,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557417032] [2024-11-09 05:27:17,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:27:17,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:27:23,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:27:26,951 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-09 05:27:26,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:27:26,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557417032] [2024-11-09 05:27:26,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557417032] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:27:26,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875180917] [2024-11-09 05:27:26,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:27:26,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:27:26,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:27:26,955 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:27:26,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:27:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:27:33,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 4073 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:27:33,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:27:34,785 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-09 05:27:34,786 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:27:34,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875180917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:27:34,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:27:34,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-11-09 05:27:34,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838206368] [2024-11-09 05:27:34,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:27:34,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:27:34,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:27:34,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:27:34,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-09 05:27:34,790 INFO L87 Difference]: Start difference. First operand 153 states and 214 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 05:27:36,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:27:39,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:27:41,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:27:43,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:27:45,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:27:48,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:27:48,028 INFO L93 Difference]: Finished difference Result 282 states and 403 transitions. [2024-11-09 05:27:48,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:27:48,029 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 63 [2024-11-09 05:27:48,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:27:48,033 INFO L225 Difference]: With dead ends: 282 [2024-11-09 05:27:48,033 INFO L226 Difference]: Without dead ends: 163 [2024-11-09 05:27:48,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:27:48,036 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 35 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 11 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:27:48,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 951 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 213 Invalid, 5 Unknown, 0 Unchecked, 13.1s Time] [2024-11-09 05:27:48,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-09 05:27:48,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2024-11-09 05:27:48,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 79 states have (on average 1.1265822784810127) internal successors, (89), 81 states have internal predecessors, (89), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2024-11-09 05:27:48,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 228 transitions. [2024-11-09 05:27:48,060 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 228 transitions. Word has length 63 [2024-11-09 05:27:48,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:27:48,061 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 228 transitions. [2024-11-09 05:27:48,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 05:27:48,061 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 228 transitions. [2024-11-09 05:27:48,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 05:27:48,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:27:48,064 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 05:27:48,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:27:48,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-09 05:27:48,265 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:27:48,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:27:48,265 INFO L85 PathProgramCache]: Analyzing trace with hash -201028620, now seen corresponding path program 1 times [2024-11-09 05:27:48,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:27:48,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303303452] [2024-11-09 05:27:48,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:27:48,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:28:00,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1698300932] [2024-11-09 05:28:00,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:00,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:00,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:28:00,442 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:28:00,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bded31b-568e-4681-aa16-e2de7bd7a24f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process