./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_back_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_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/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_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/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_0e54a03c-2de0-4993-b481-4fb352f13474/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 2279e66d659d6de4a6f1e9cba0e3ed135a3304882c70e550497f0feeaae371b4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:11:45,490 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:11:45,602 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 05:11:45,611 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:11:45,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:11:45,666 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:11:45,668 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:11:45,668 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:11:45,669 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:11:45,671 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:11:45,672 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:11:45,674 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:11:45,674 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:11:45,675 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:11:45,679 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:11:45,679 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:11:45,680 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:11:45,680 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:11:45,680 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:11:45,681 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:11:45,681 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:11:45,684 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:11:45,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:11:45,686 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:11:45,686 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:11:45,686 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:11:45,687 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:11:45,687 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:11:45,687 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:11:45,688 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:11:45,689 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:11:45,690 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:11:45,690 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:11:45,691 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:11:45,692 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:11:45,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:11:45,693 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:11:45,693 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:11:45,693 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:11:45,694 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:11:45,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:11:45,694 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:11:45,695 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:11:45,695 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:11:45,695 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_0e54a03c-2de0-4993-b481-4fb352f13474/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2279e66d659d6de4a6f1e9cba0e3ed135a3304882c70e550497f0feeaae371b4 [2024-11-09 05:11:45,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:11:46,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:11:46,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:11:46,014 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:11:46,018 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:11:46,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i Unable to find full path for "g++" [2024-11-09 05:11:48,265 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:11:49,029 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:11:49,030 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2024-11-09 05:11:49,101 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/data/0a4a560e6/9a4b80ca554f4006bbe948339ff78891/FLAG80c767b36 [2024-11-09 05:11:49,130 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/data/0a4a560e6/9a4b80ca554f4006bbe948339ff78891 [2024-11-09 05:11:49,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:11:49,136 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:11:49,139 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:11:49,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:11:49,148 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:11:49,149 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:11:49" (1/1) ... [2024-11-09 05:11:49,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14be890f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:49, skipping insertion in model container [2024-11-09 05:11:49,153 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:11:49" (1/1) ... [2024-11-09 05:11:49,330 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:11:49,828 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_0e54a03c-2de0-4993-b481-4fb352f13474/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4493,4506] [2024-11-09 05:11:49,838 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_0e54a03c-2de0-4993-b481-4fb352f13474/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4553,4566] [2024-11-09 05:11:51,206 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:51,209 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:51,210 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:51,211 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:51,212 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:51,229 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:51,230 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:51,233 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:51,234 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:51,236 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:51,239 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:51,241 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:51,242 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:52,181 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:52,196 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:52,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:11:52,314 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:11:52,333 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_0e54a03c-2de0-4993-b481-4fb352f13474/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4493,4506] [2024-11-09 05:11:52,334 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_0e54a03c-2de0-4993-b481-4fb352f13474/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4553,4566] [2024-11-09 05:11:52,397 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:52,398 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:52,398 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:52,399 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:52,399 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:52,408 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:52,408 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:52,410 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:52,411 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:52,412 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:52,413 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:52,414 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:52,414 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:52,510 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:52,521 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:11:52,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7769-7780] [2024-11-09 05:11:52,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:11:52,877 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:11:52,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:52 WrapperNode [2024-11-09 05:11:52,878 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:11:52,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:11:52,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:11:52,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:11:52,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:52" (1/1) ... [2024-11-09 05:11:53,073 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:52" (1/1) ... [2024-11-09 05:11:53,199 INFO L138 Inliner]: procedures = 680, calls = 1678, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 656 [2024-11-09 05:11:53,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:11:53,200 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:11:53,201 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:11:53,201 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:11:53,227 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:52" (1/1) ... [2024-11-09 05:11:53,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:52" (1/1) ... [2024-11-09 05:11:53,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:52" (1/1) ... [2024-11-09 05:11:53,241 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:52" (1/1) ... [2024-11-09 05:11:53,280 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:52" (1/1) ... [2024-11-09 05:11:53,285 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:52" (1/1) ... [2024-11-09 05:11:53,294 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:52" (1/1) ... [2024-11-09 05:11:53,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:52" (1/1) ... [2024-11-09 05:11:53,310 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:11:53,311 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:11:53,312 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:11:53,312 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:11:53,313 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:52" (1/1) ... [2024-11-09 05:11:53,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:11:53,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:11:53,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:11:53,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:11:53,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:11:53,416 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-09 05:11:53,416 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-09 05:11:53,416 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-09 05:11:53,416 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-09 05:11:53,417 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 05:11:53,417 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 05:11:53,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 05:11:53,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:11:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-09 05:11:53,418 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-09 05:11:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:11:53,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:11:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:11:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:11:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 05:11:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-09 05:11:53,420 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-09 05:11:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:11:53,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:11:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 05:11:53,421 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 05:11:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-09 05:11:53,421 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-09 05:11:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-09 05:11:53,421 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-09 05:11:53,422 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-09 05:11:53,423 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-09 05:11:53,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 05:11:53,423 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-09 05:11:53,424 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-09 05:11:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-09 05:11:53,424 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-09 05:11:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:11:53,425 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:11:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-09 05:11:53,425 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-09 05:11:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:11:53,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:11:53,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 05:11:53,427 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-09 05:11:53,427 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-09 05:11:53,427 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-09 05:11:53,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-09 05:11:53,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:11:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-09 05:11:53,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-09 05:11:53,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:11:53,847 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:11:53,850 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:11:58,485 INFO L? ?]: Removed 128 outVars from TransFormulas that were not future-live. [2024-11-09 05:11:58,485 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:11:58,981 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:11:58,982 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:11:58,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:11:58 BoogieIcfgContainer [2024-11-09 05:11:58,983 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:11:58,987 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:11:58,988 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:11:58,993 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:11:58,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:11:49" (1/3) ... [2024-11-09 05:11:58,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a07331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:11:58, skipping insertion in model container [2024-11-09 05:11:58,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:52" (2/3) ... [2024-11-09 05:11:58,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a07331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:11:58, skipping insertion in model container [2024-11-09 05:11:58,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:11:58" (3/3) ... [2024-11-09 05:11:58,999 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_back_harness.i [2024-11-09 05:11:59,024 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:11:59,024 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:11:59,134 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:11:59,144 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;@5fce45ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:11:59,145 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:11:59,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 157 states, 83 states have (on average 1.180722891566265) internal successors, (98), 84 states have internal predecessors, (98), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-09 05:11:59,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-09 05:11:59,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:59,168 INFO L215 NwaCegarLoop]: trace histogram [10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:11:59,169 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:11:59,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:59,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1183092952, now seen corresponding path program 1 times [2024-11-09 05:11:59,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:11:59,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902397847] [2024-11-09 05:11:59,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:59,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:09,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:11,517 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-09 05:12:11,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:11,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902397847] [2024-11-09 05:12:11,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902397847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:12:11,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613045267] [2024-11-09 05:12:11,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:11,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:11,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:11,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:11,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:12:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:20,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 4194 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:12:20,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:20,861 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 05:12:20,862 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:12:20,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613045267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:20,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:12:20,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-09 05:12:20,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312410839] [2024-11-09 05:12:20,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:20,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:12:20,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:20,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:12:20,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:12:20,908 INFO L87 Difference]: Start difference. First operand has 157 states, 83 states have (on average 1.180722891566265) internal successors, (98), 84 states have internal predecessors, (98), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-09 05:12:23,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:12:25,257 WARN L539 Checker$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 05:12:27,527 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 05:12:29,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:29,056 INFO L93 Difference]: Finished difference Result 291 states and 407 transitions. [2024-11-09 05:12:29,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:12:29,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 99 [2024-11-09 05:12:29,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:29,075 INFO L225 Difference]: With dead ends: 291 [2024-11-09 05:12:29,076 INFO L226 Difference]: Without dead ends: 153 [2024-11-09 05:12:29,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 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 05:12:29,086 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 37 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:29,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 616 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 133 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2024-11-09 05:12:29,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-09 05:12:29,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2024-11-09 05:12:29,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 80 states have (on average 1.1375) internal successors, (91), 82 states have internal predecessors, (91), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (58), 53 states have call predecessors, (58), 53 states have call successors, (58) [2024-11-09 05:12:29,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 204 transitions. [2024-11-09 05:12:29,194 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 204 transitions. Word has length 99 [2024-11-09 05:12:29,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:29,195 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 204 transitions. [2024-11-09 05:12:29,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-09 05:12:29,196 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 204 transitions. [2024-11-09 05:12:29,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 05:12:29,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:29,208 INFO L215 NwaCegarLoop]: trace histogram [10, 5, 5, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:12:29,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:12:29,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 05:12:29,409 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:12:29,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:29,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1869056272, now seen corresponding path program 1 times [2024-11-09 05:12:29,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:29,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770329763] [2024-11-09 05:12:29,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:29,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:39,424 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-09 05:12:39,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:39,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770329763] [2024-11-09 05:12:39,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770329763] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:12:39,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564548236] [2024-11-09 05:12:39,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:39,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:39,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:39,428 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:39,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:12:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:47,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 4402 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:12:47,685 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:48,416 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-09 05:12:48,416 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:12:48,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564548236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:48,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:12:48,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-11-09 05:12:48,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402408587] [2024-11-09 05:12:48,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:48,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:12:48,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:48,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:12:48,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:12:48,422 INFO L87 Difference]: Start difference. First operand 153 states and 204 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-09 05:12:50,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:12:52,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:12:55,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:12:57,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:12:59,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:59,074 INFO L93 Difference]: Finished difference Result 246 states and 328 transitions. [2024-11-09 05:12:59,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:12:59,075 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 117 [2024-11-09 05:12:59,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:59,079 INFO L225 Difference]: With dead ends: 246 [2024-11-09 05:12:59,080 INFO L226 Difference]: Without dead ends: 153 [2024-11-09 05:12:59,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:12:59,083 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 36 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 24 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:59,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 740 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 153 Invalid, 4 Unknown, 0 Unchecked, 10.5s Time] [2024-11-09 05:12:59,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-09 05:12:59,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2024-11-09 05:12:59,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 80 states have (on average 1.1375) internal successors, (91), 82 states have internal predecessors, (91), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 53 states have call predecessors, (55), 53 states have call successors, (55) [2024-11-09 05:12:59,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 201 transitions. [2024-11-09 05:12:59,123 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 201 transitions. Word has length 117 [2024-11-09 05:12:59,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:59,128 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 201 transitions. [2024-11-09 05:12:59,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-09 05:12:59,129 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 201 transitions. [2024-11-09 05:12:59,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-09 05:12:59,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:59,140 INFO L215 NwaCegarLoop]: trace histogram [10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 05:12:59,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 05:12:59,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:59,341 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:12:59,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:59,342 INFO L85 PathProgramCache]: Analyzing trace with hash 500408760, now seen corresponding path program 2 times [2024-11-09 05:12:59,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:59,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275189925] [2024-11-09 05:12:59,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:59,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:13:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:13:07,730 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 05:13:07,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:13:07,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275189925] [2024-11-09 05:13:07,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275189925] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:13:07,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908563361] [2024-11-09 05:13:07,736 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:13:07,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:13:07,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:13:07,740 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:13:07,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e54a03c-2de0-4993-b481-4fb352f13474/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process