./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_clear_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_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/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_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/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_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/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 9e160fe5ab2582a9d6f5a0de6f18c7ad864793aa408f2050ff0148a78c40a3b1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:45:24,018 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:45:24,112 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 05:45:24,119 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:45:24,119 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:45:24,141 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:45:24,142 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:45:24,142 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:45:24,142 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:45:24,142 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:45:24,143 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:45:24,143 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:45:24,143 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:45:24,143 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:45:24,143 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:45:24,143 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:45:24,144 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:45:24,144 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:45:24,144 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:45:24,144 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:45:24,144 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:45:24,144 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:45:24,145 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:45:24,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:45:24,145 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:45:24,145 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:45:24,145 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:45:24,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:45:24,146 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:45:24,146 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:45:24,146 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:45:24,146 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:45:24,146 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:45:24,146 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:45:24,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:45:24,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:45:24,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:45:24,147 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:45:24,147 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:45:24,147 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:45:24,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:45:24,147 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:45:24,147 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:45:24,147 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:45:24,147 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_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/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 -> 9e160fe5ab2582a9d6f5a0de6f18c7ad864793aa408f2050ff0148a78c40a3b1 [2024-11-14 05:45:24,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:45:24,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:45:24,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:45:24,455 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:45:24,455 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:45:24,456 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i Unable to find full path for "g++" [2024-11-14 05:45:26,404 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:45:26,975 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:45:26,976 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i [2024-11-14 05:45:27,037 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/data/1f26591b9/247136c98e684e269e6303fa7ee745ea/FLAGcde78d21f [2024-11-14 05:45:27,062 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/data/1f26591b9/247136c98e684e269e6303fa7ee745ea [2024-11-14 05:45:27,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:45:27,069 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:45:27,072 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:45:27,072 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:45:27,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:45:27,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:45:27" (1/1) ... [2024-11-14 05:45:27,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@747a39b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:27, skipping insertion in model container [2024-11-14 05:45:27,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:45:27" (1/1) ... [2024-11-14 05:45:27,208 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:45:27,518 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_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i[4494,4507] [2024-11-14 05:45:27,527 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_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i[4554,4567] [2024-11-14 05:45:28,578 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:28,579 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:28,580 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:28,581 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:28,582 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:28,596 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:28,597 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:28,599 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:28,599 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:28,601 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:28,603 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:28,604 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:28,604 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:29,321 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:29,331 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:29,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:45:29,440 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:45:29,456 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_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i[4494,4507] [2024-11-14 05:45:29,457 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_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i[4554,4567] [2024-11-14 05:45:29,529 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:29,530 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:29,530 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:29,531 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:29,532 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:29,543 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:29,543 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:29,545 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:29,545 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:29,547 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:29,548 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:29,548 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:29,548 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:29,698 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:29,709 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:45:29,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7517-7528] [2024-11-14 05:45:29,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:45:30,031 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:45:30,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:30 WrapperNode [2024-11-14 05:45:30,032 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:45:30,033 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:45:30,033 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:45:30,034 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:45:30,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:30" (1/1) ... [2024-11-14 05:45:30,121 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:30" (1/1) ... [2024-11-14 05:45:30,196 INFO L138 Inliner]: procedures = 679, calls = 1574, calls flagged for inlining = 46, calls inlined = 6, statements flattened = 584 [2024-11-14 05:45:30,197 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:45:30,198 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:45:30,198 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:45:30,199 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:45:30,211 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:30" (1/1) ... [2024-11-14 05:45:30,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:30" (1/1) ... [2024-11-14 05:45:30,219 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:30" (1/1) ... [2024-11-14 05:45:30,220 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:30" (1/1) ... [2024-11-14 05:45:30,265 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:30" (1/1) ... [2024-11-14 05:45:30,269 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:30" (1/1) ... [2024-11-14 05:45:30,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:30" (1/1) ... [2024-11-14 05:45:30,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:30" (1/1) ... [2024-11-14 05:45:30,287 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:45:30,288 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:45:30,288 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:45:30,288 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:45:30,289 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:30" (1/1) ... [2024-11-14 05:45:30,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:45:30,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:45:30,339 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:45:30,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:45:30,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:45:30,380 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-14 05:45:30,381 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-14 05:45:30,381 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-14 05:45:30,381 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-14 05:45:30,381 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-14 05:45:30,381 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-14 05:45:30,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 05:45:30,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:45:30,382 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-14 05:45:30,383 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-14 05:45:30,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:45:30,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:45:30,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 05:45:30,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:45:30,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 05:45:30,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:45:30,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:45:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-14 05:45:30,387 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-14 05:45:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-14 05:45:30,387 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-14 05:45:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 05:45:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:45:30,387 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:45:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:45:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_clear [2024-11-14 05:45:30,387 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_clear [2024-11-14 05:45:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:45:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 05:45:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-14 05:45:30,388 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-14 05:45:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-14 05:45:30,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-14 05:45:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:45:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:45:30,822 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:45:30,824 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:45:34,928 INFO L? ?]: Removed 63 outVars from TransFormulas that were not future-live. [2024-11-14 05:45:34,929 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:45:35,267 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:45:35,270 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 05:45:35,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:45:35 BoogieIcfgContainer [2024-11-14 05:45:35,270 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:45:35,273 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:45:35,274 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:45:35,279 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:45:35,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:45:27" (1/3) ... [2024-11-14 05:45:35,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21346436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:45:35, skipping insertion in model container [2024-11-14 05:45:35,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:30" (2/3) ... [2024-11-14 05:45:35,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21346436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:45:35, skipping insertion in model container [2024-11-14 05:45:35,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:45:35" (3/3) ... [2024-11-14 05:45:35,284 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_clear_harness_negated.i [2024-11-14 05:45:35,302 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:45:35,303 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_clear_harness_negated.i that has 12 procedures, 78 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-14 05:45:35,374 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:45:35,393 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;@7645612a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:45:35,393 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:45:35,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 40 states have (on average 1.15) internal successors, (46), 41 states have internal predecessors, (46), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 05:45:35,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-14 05:45:35,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:45:35,409 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-14 05:45:35,410 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:45:35,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:45:35,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1204326858, now seen corresponding path program 1 times [2024-11-14 05:45:35,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:45:35,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635830143] [2024-11-14 05:45:35,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:45:35,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:45:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:45:45,204 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 05:45:45,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:45:45,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635830143] [2024-11-14 05:45:45,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635830143] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:45:45,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477809098] [2024-11-14 05:45:45,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:45:45,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:45:45,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:45:45,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:45:45,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:45:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:45:52,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 3978 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:45:52,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:45:53,224 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:45:53,224 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:45:53,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477809098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:45:53,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:45:53,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-14 05:45:53,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097957959] [2024-11-14 05:45:53,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:45:53,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:45:53,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:45:53,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:45:53,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:45:53,256 INFO L87 Difference]: Start difference. First operand has 78 states, 40 states have (on average 1.15) internal successors, (46), 41 states have internal predecessors, (46), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 05:45:55,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:45:57,634 WARN L539 Checker$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 05:45:59,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:46:00,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:46:00,886 INFO L93 Difference]: Finished difference Result 130 states and 170 transitions. [2024-11-14 05:46:00,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:46:00,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 47 [2024-11-14 05:46:00,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:46:00,896 INFO L225 Difference]: With dead ends: 130 [2024-11-14 05:46:00,896 INFO L226 Difference]: Without dead ends: 78 [2024-11-14 05:46:00,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 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 05:46:00,902 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 13 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:46:00,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 245 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2024-11-14 05:46:00,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-14 05:46:00,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-14 05:46:00,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 40 states have (on average 1.125) internal successors, (45), 42 states have internal predecessors, (45), 25 states have call successors, (25), 11 states have call predecessors, (25), 12 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) [2024-11-14 05:46:00,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 96 transitions. [2024-11-14 05:46:00,962 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 96 transitions. Word has length 47 [2024-11-14 05:46:00,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:46:00,962 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 96 transitions. [2024-11-14 05:46:00,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 05:46:00,963 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 96 transitions. [2024-11-14 05:46:00,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 05:46:00,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:46:00,967 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-14 05:46:00,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:46:01,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 05:46:01,168 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:46:01,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:46:01,169 INFO L85 PathProgramCache]: Analyzing trace with hash -519217980, now seen corresponding path program 1 times [2024-11-14 05:46:01,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:46:01,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261932122] [2024-11-14 05:46:01,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:01,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:46:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:46:09,197 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 05:46:09,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:46:09,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261932122] [2024-11-14 05:46:09,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261932122] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:46:09,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726046342] [2024-11-14 05:46:09,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:09,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:46:09,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:46:09,201 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:46:09,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:46:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:46:16,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 4082 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:46:16,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:46:17,133 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 05:46:17,133 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:46:17,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726046342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:46:17,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:46:17,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-14 05:46:17,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879679518] [2024-11-14 05:46:17,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:46:17,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:46:17,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:46:17,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:46:17,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-14 05:46:17,136 INFO L87 Difference]: Start difference. First operand 78 states and 96 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-14 05:46:19,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:46:21,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:46:23,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:46:25,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:46:28,115 WARN L539 Checker$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 05:46:29,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:46:29,540 INFO L93 Difference]: Finished difference Result 123 states and 149 transitions. [2024-11-14 05:46:29,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:46:29,541 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 56 [2024-11-14 05:46:29,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:46:29,543 INFO L225 Difference]: With dead ends: 123 [2024-11-14 05:46:29,543 INFO L226 Difference]: Without dead ends: 76 [2024-11-14 05:46:29,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-14 05:46:29,546 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 17 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 9 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:46:29,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 374 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 126 Invalid, 5 Unknown, 0 Unchecked, 12.2s Time] [2024-11-14 05:46:29,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-14 05:46:29,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-14 05:46:29,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 40 states have internal predecessors, (43), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-14 05:46:29,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 92 transitions. [2024-11-14 05:46:29,561 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 92 transitions. Word has length 56 [2024-11-14 05:46:29,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:46:29,561 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 92 transitions. [2024-11-14 05:46:29,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-14 05:46:29,562 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 92 transitions. [2024-11-14 05:46:29,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-14 05:46:29,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:46:29,564 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-14 05:46:29,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:46:29,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:46:29,764 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:46:29,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:46:29,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1849292192, now seen corresponding path program 1 times [2024-11-14 05:46:29,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:46:29,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606214276] [2024-11-14 05:46:29,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:29,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:46:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:46:42,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43318464] [2024-11-14 05:46:42,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:42,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:46:42,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:46:42,518 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:46:42,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed7abf6-7c66-4ded-949a-4dfe8ae54fbe/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process