./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E --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 c30c0965987318f01d5184a150d60c3184a0b961eb98f92329641a56cc773300 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:31:31,197 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:31:31,262 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 05:31:31,266 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:31:31,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:31:31,303 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:31:31,304 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:31:31,304 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:31:31,304 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:31:31,304 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:31:31,304 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:31:31,305 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:31:31,305 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:31:31,305 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:31:31,305 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:31:31,305 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:31:31,305 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:31:31,305 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:31:31,305 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:31:31,305 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:31:31,306 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:31:31,306 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:31:31,306 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:31:31,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:31:31,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:31:31,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:31:31,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:31:31,307 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:31:31,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:31:31,307 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:31:31,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:31:31,307 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:31:31,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:31:31,307 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:31:31,307 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:31:31,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:31:31,307 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:31:31,308 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:31:31,308 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:31:31,308 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:31:31,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:31:31,308 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:31:31,308 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:31:31,308 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:31:31,308 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E 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 -> c30c0965987318f01d5184a150d60c3184a0b961eb98f92329641a56cc773300 [2024-11-14 05:31:31,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:31:31,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:31:31,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:31:31,604 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:31:31,605 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:31:31,606 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness_negated.i Unable to find full path for "g++" [2024-11-14 05:31:33,644 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:31:34,158 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:31:34,160 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness_negated.i [2024-11-14 05:31:34,191 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/data/528e30d1c/21d6811568dc4031bc26dbca87ea73e3/FLAG01be1af1a [2024-11-14 05:31:34,213 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/data/528e30d1c/21d6811568dc4031bc26dbca87ea73e3 [2024-11-14 05:31:34,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:31:34,219 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:31:34,222 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:31:34,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:31:34,228 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:31:34,229 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:31:34" (1/1) ... [2024-11-14 05:31:34,229 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@174d43fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:31:34, skipping insertion in model container [2024-11-14 05:31:34,230 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:31:34" (1/1) ... [2024-11-14 05:31:34,312 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:31:34,574 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_d08dce32-f049-4a9d-a86b-bc423ad76d23/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness_negated.i[4495,4508] [2024-11-14 05:31:34,580 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_d08dce32-f049-4a9d-a86b-bc423ad76d23/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness_negated.i[4555,4568] [2024-11-14 05:31:35,681 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:35,682 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:35,682 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:35,683 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:35,685 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:35,704 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:35,704 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:35,706 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:35,707 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:35,710 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:35,711 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:35,712 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:35,712 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:36,440 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:36,454 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:36,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:31:36,607 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:31:36,631 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_d08dce32-f049-4a9d-a86b-bc423ad76d23/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness_negated.i[4495,4508] [2024-11-14 05:31:36,632 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_d08dce32-f049-4a9d-a86b-bc423ad76d23/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness_negated.i[4555,4568] [2024-11-14 05:31:36,776 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:36,776 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:36,777 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:36,777 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:36,778 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:36,787 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:36,789 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:36,792 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:36,792 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:36,794 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:36,795 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:36,796 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:36,798 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:36,924 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:36,934 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:31:36,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7715-7726] [2024-11-14 05:31:36,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:31:37,262 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:31:37,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:31:37 WrapperNode [2024-11-14 05:31:37,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:31:37,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:31:37,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:31:37,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:31:37,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:31:37" (1/1) ... [2024-11-14 05:31:37,386 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:31:37" (1/1) ... [2024-11-14 05:31:37,467 INFO L138 Inliner]: procedures = 679, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 592 [2024-11-14 05:31:37,468 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:31:37,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:31:37,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:31:37,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:31:37,477 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:31:37" (1/1) ... [2024-11-14 05:31:37,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:31:37" (1/1) ... [2024-11-14 05:31:37,483 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:31:37" (1/1) ... [2024-11-14 05:31:37,484 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:31:37" (1/1) ... [2024-11-14 05:31:37,509 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:31:37" (1/1) ... [2024-11-14 05:31:37,512 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:31:37" (1/1) ... [2024-11-14 05:31:37,518 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:31:37" (1/1) ... [2024-11-14 05:31:37,521 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:31:37" (1/1) ... [2024-11-14 05:31:37,528 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:31:37,529 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:31:37,529 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:31:37,529 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:31:37,530 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:31:37" (1/1) ... [2024-11-14 05:31:37,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:31:37,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:31:37,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:31:37,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:31:37,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:31:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-14 05:31:37,617 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-14 05:31:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-14 05:31:37,618 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-14 05:31:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-14 05:31:37,618 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-14 05:31:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 05:31:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:31:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-14 05:31:37,618 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-14 05:31:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:31:37,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:31:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 05:31:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:31:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 05:31:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:31:37,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:31:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-14 05:31:37,618 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-14 05:31:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-14 05:31:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-14 05:31:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-14 05:31:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-14 05:31:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 05:31:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-14 05:31:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-14 05:31:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:31:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:31:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:31:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:31:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 05:31:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-14 05:31:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-14 05:31:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-14 05:31:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-14 05:31:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:31:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-14 05:31:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-14 05:31:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:31:38,001 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:31:38,003 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:31:41,947 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2024-11-14 05:31:41,948 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:31:42,349 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:31:42,350 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 05:31:42,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:31:42 BoogieIcfgContainer [2024-11-14 05:31:42,350 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:31:42,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:31:42,353 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:31:42,357 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:31:42,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:31:34" (1/3) ... [2024-11-14 05:31:42,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebffb66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:31:42, skipping insertion in model container [2024-11-14 05:31:42,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:31:37" (2/3) ... [2024-11-14 05:31:42,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebffb66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:31:42, skipping insertion in model container [2024-11-14 05:31:42,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:31:42" (3/3) ... [2024-11-14 05:31:42,360 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_length_harness_negated.i [2024-11-14 05:31:42,378 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:31:42,379 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_length_harness_negated.i that has 14 procedures, 99 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-14 05:31:42,449 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:31:42,464 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;@3bf7f50a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:31:42,464 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:31:42,468 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 55 states have internal predecessors, (64), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-14 05:31:42,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 05:31:42,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:31:42,479 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, 1, 1] [2024-11-14 05:31:42,479 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:31:42,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:31:42,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1044008904, now seen corresponding path program 1 times [2024-11-14 05:31:42,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:31:42,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136404841] [2024-11-14 05:31:42,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:42,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:31:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:31:51,175 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-14 05:31:51,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:31:51,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136404841] [2024-11-14 05:31:51,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136404841] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:31:51,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489227257] [2024-11-14 05:31:51,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:51,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:31:51,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:31:51,183 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:31:51,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:31:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:31:58,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 4032 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:31:58,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:31:58,854 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 05:31:58,854 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:31:58,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489227257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:31:58,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:31:58,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-14 05:31:58,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894120293] [2024-11-14 05:31:58,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:31:58,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:31:58,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:31:58,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:31:58,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:31:58,890 INFO L87 Difference]: Start difference. First operand has 99 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 55 states have internal predecessors, (64), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2024-11-14 05:32:00,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:32:03,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:32:05,467 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 [] [2024-11-14 05:32:06,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:06,527 INFO L93 Difference]: Finished difference Result 169 states and 225 transitions. [2024-11-14 05:32:06,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:32:06,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 56 [2024-11-14 05:32:06,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:06,539 INFO L225 Difference]: With dead ends: 169 [2024-11-14 05:32:06,539 INFO L226 Difference]: Without dead ends: 95 [2024-11-14 05:32:06,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:32:06,546 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 18 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:06,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 366 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2024-11-14 05:32:06,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-14 05:32:06,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-14 05:32:06,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 51 states have (on average 1.1176470588235294) internal successors, (57), 53 states have internal predecessors, (57), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 28 states have call predecessors, (30), 28 states have call successors, (30) [2024-11-14 05:32:06,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 117 transitions. [2024-11-14 05:32:06,605 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 117 transitions. Word has length 56 [2024-11-14 05:32:06,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:06,605 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 117 transitions. [2024-11-14 05:32:06,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2024-11-14 05:32:06,606 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 117 transitions. [2024-11-14 05:32:06,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 05:32:06,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:06,609 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, 1, 1] [2024-11-14 05:32:06,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:32:06,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 05:32:06,810 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:32:06,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:06,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1419136513, now seen corresponding path program 1 times [2024-11-14 05:32:06,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:32:06,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850337146] [2024-11-14 05:32:06,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:06,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:32:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:14,590 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-14 05:32:14,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:32:14,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850337146] [2024-11-14 05:32:14,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850337146] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:32:14,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921816339] [2024-11-14 05:32:14,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:14,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:14,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:32:14,595 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:32:14,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:32:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:21,944 INFO L255 TraceCheckSpWp]: Trace formula consists of 4136 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:32:21,952 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:22,786 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-14 05:32:22,786 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:32:22,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921816339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:32:22,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:32:22,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-14 05:32:22,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833857376] [2024-11-14 05:32:22,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:32:22,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:32:22,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:32:22,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:32:22,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-14 05:32:22,791 INFO L87 Difference]: Start difference. First operand 95 states and 117 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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) [2024-11-14 05:32:24,863 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 [] [2024-11-14 05:32:27,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:32:29,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:32:31,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:32:33,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:32:35,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:35,284 INFO L93 Difference]: Finished difference Result 148 states and 179 transitions. [2024-11-14 05:32:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:32:35,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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 65 [2024-11-14 05:32:35,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:35,287 INFO L225 Difference]: With dead ends: 148 [2024-11-14 05:32:35,287 INFO L226 Difference]: Without dead ends: 93 [2024-11-14 05:32:35,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-14 05:32:35,289 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 18 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 10 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:35,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 514 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 112 Invalid, 5 Unknown, 0 Unchecked, 12.4s Time] [2024-11-14 05:32:35,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-14 05:32:35,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-14 05:32:35,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 50 states have (on average 1.1) internal successors, (55), 51 states have internal predecessors, (55), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-14 05:32:35,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2024-11-14 05:32:35,303 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 65 [2024-11-14 05:32:35,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:35,304 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2024-11-14 05:32:35,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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) [2024-11-14 05:32:35,304 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2024-11-14 05:32:35,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-14 05:32:35,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:35,307 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, 1, 1] [2024-11-14 05:32:35,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:32:35,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:35,508 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:32:35,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:35,508 INFO L85 PathProgramCache]: Analyzing trace with hash -331247829, now seen corresponding path program 1 times [2024-11-14 05:32:35,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:32:35,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949554649] [2024-11-14 05:32:35,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:35,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:32:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:32:50,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1544552554] [2024-11-14 05:32:50,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:50,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:50,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:32:50,043 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:32:50,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08dce32-f049-4a9d-a86b-bc423ad76d23/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process