./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.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_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/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_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/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_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/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 602c22a5759f33fe3c7a18e3ef1531ea38defb370e298f7d0c16de4a5734f1a7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:35:19,042 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:35:19,134 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 05:35:19,141 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:35:19,141 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:35:19,179 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:35:19,183 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:35:19,183 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:35:19,183 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:35:19,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:35:19,184 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:35:19,184 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:35:19,184 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:35:19,184 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:35:19,184 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:35:19,184 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:35:19,184 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:35:19,185 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:35:19,185 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:35:19,185 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:35:19,185 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:35:19,185 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:35:19,189 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:35:19,189 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:35:19,190 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:35:19,190 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:35:19,190 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:35:19,190 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:35:19,190 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:35:19,191 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:35:19,191 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:35:19,191 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:35:19,191 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:35:19,192 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:35:19,192 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:35:19,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:35:19,193 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:35:19,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:35:19,194 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:35:19,194 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:35:19,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:35:19,195 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:35:19,195 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:35:19,195 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:35:19,195 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_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/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 -> 602c22a5759f33fe3c7a18e3ef1531ea38defb370e298f7d0c16de4a5734f1a7 [2024-11-14 05:35:19,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:35:19,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:35:19,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:35:19,705 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:35:19,706 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:35:19,710 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i Unable to find full path for "g++" [2024-11-14 05:35:22,302 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:35:23,136 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:35:23,137 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i [2024-11-14 05:35:23,183 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/data/d9a8e319a/efdc6ac048684282a31944f38866f556/FLAGe5e449ff9 [2024-11-14 05:35:23,206 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/data/d9a8e319a/efdc6ac048684282a31944f38866f556 [2024-11-14 05:35:23,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:35:23,213 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:35:23,216 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:35:23,216 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:35:23,224 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:35:23,225 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:35:23" (1/1) ... [2024-11-14 05:35:23,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48d48090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:23, skipping insertion in model container [2024-11-14 05:35:23,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:35:23" (1/1) ... [2024-11-14 05:35:23,361 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:35:23,771 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_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i[4494,4507] [2024-11-14 05:35:23,781 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_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i[4554,4567] [2024-11-14 05:35:25,261 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:25,262 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:25,262 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:25,263 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:25,265 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:25,287 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:25,288 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:25,291 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:25,292 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:25,297 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:25,298 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:25,303 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:25,304 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:26,263 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:26,277 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:26,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:35:26,483 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:35:26,504 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_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i[4494,4507] [2024-11-14 05:35:26,509 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_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i[4554,4567] [2024-11-14 05:35:26,623 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:26,624 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:26,625 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:26,626 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:26,627 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:26,642 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:26,643 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:26,645 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:26,646 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:26,648 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:26,649 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:26,650 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:26,650 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:26,795 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:26,810 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:35:26,829 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7529-7540] [2024-11-14 05:35:26,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:35:27,284 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:35:27,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:27 WrapperNode [2024-11-14 05:35:27,286 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:35:27,287 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:35:27,287 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:35:27,287 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:35:27,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:27" (1/1) ... [2024-11-14 05:35:27,398 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:27" (1/1) ... [2024-11-14 05:35:27,505 INFO L138 Inliner]: procedures = 679, calls = 1574, calls flagged for inlining = 46, calls inlined = 6, statements flattened = 584 [2024-11-14 05:35:27,505 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:35:27,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:35:27,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:35:27,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:35:27,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:27" (1/1) ... [2024-11-14 05:35:27,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:27" (1/1) ... [2024-11-14 05:35:27,529 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:27" (1/1) ... [2024-11-14 05:35:27,529 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:27" (1/1) ... [2024-11-14 05:35:27,566 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:27" (1/1) ... [2024-11-14 05:35:27,569 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:27" (1/1) ... [2024-11-14 05:35:27,576 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:27" (1/1) ... [2024-11-14 05:35:27,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:27" (1/1) ... [2024-11-14 05:35:27,591 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:35:27,593 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:35:27,593 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:35:27,593 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:35:27,594 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:27" (1/1) ... [2024-11-14 05:35:27,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:35:27,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:35:27,651 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:35:27,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:35:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:35:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-14 05:35:27,699 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-14 05:35:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-14 05:35:27,699 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-14 05:35:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-14 05:35:27,700 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-14 05:35:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 05:35:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:35:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-14 05:35:27,701 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-14 05:35:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:35:27,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:35:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 05:35:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:35:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 05:35:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:35:27,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:35:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-14 05:35:27,702 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-14 05:35:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-14 05:35:27,702 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-14 05:35:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 05:35:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:35:27,702 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:35:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:35:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_clear [2024-11-14 05:35:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_clear [2024-11-14 05:35:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:35:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 05:35:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-14 05:35:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-14 05:35:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-14 05:35:27,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-14 05:35:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:35:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:35:28,188 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:35:28,191 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:35:32,662 INFO L? ?]: Removed 63 outVars from TransFormulas that were not future-live. [2024-11-14 05:35:32,662 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:35:33,082 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:35:33,085 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 05:35:33,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:35:33 BoogieIcfgContainer [2024-11-14 05:35:33,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:35:33,089 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:35:33,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:35:33,100 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:35:33,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:35:23" (1/3) ... [2024-11-14 05:35:33,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d3f232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:35:33, skipping insertion in model container [2024-11-14 05:35:33,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:27" (2/3) ... [2024-11-14 05:35:33,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d3f232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:35:33, skipping insertion in model container [2024-11-14 05:35:33,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:35:33" (3/3) ... [2024-11-14 05:35:33,105 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_clear_harness.i [2024-11-14 05:35:33,126 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:35:33,131 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_clear_harness.i that has 12 procedures, 78 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-14 05:35:33,241 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:35:33,256 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;@5fafe6b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:35:33,256 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:35:33,261 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 05:35:33,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-14 05:35:33,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:35:33,273 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 05:35:33,274 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:35:33,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:35:33,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1933694439, now seen corresponding path program 1 times [2024-11-14 05:35:33,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:35:33,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101622019] [2024-11-14 05:35:33,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:35:33,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:35:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:35:45,344 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 05:35:45,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:35:45,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101622019] [2024-11-14 05:35:45,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101622019] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:35:45,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338713718] [2024-11-14 05:35:45,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:35:45,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:35:45,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:35:45,366 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:35:45,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:35:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:35:55,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 3978 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:35:55,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:35:56,259 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 05:35:56,259 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:35:56,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338713718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:35:56,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:35:56,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-14 05:35:56,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98153768] [2024-11-14 05:35:56,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:35:56,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:35:56,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:35:56,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:35:56,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:35:56,298 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 05:35:58,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:36:00,651 WARN L539 Checker$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 05:36:02,903 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 05:36:04,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:36:04,136 INFO L93 Difference]: Finished difference Result 130 states and 170 transitions. [2024-11-14 05:36:04,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:36:04,139 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 05:36:04,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:36:04,152 INFO L225 Difference]: With dead ends: 130 [2024-11-14 05:36:04,153 INFO L226 Difference]: Without dead ends: 78 [2024-11-14 05:36:04,159 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 05:36:04,165 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 13 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s 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, 7.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:36:04,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 245 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2024-11-14 05:36:04,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-14 05:36:04,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-14 05:36:04,219 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 05:36:04,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 96 transitions. [2024-11-14 05:36:04,235 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 96 transitions. Word has length 47 [2024-11-14 05:36:04,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:36:04,237 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 96 transitions. [2024-11-14 05:36:04,237 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 05:36:04,237 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 96 transitions. [2024-11-14 05:36:04,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 05:36:04,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:36:04,243 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 05:36:04,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-14 05:36:04,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 05:36:04,445 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:36:04,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:36:04,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1105090247, now seen corresponding path program 1 times [2024-11-14 05:36:04,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:36:04,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745900231] [2024-11-14 05:36:04,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:36:04,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:36:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:36:14,655 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 05:36:14,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:36:14,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745900231] [2024-11-14 05:36:14,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745900231] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:36:14,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669973498] [2024-11-14 05:36:14,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:36:14,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:36:14,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:36:14,659 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:36:14,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:36:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:36:24,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 4082 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:36:24,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:36:24,888 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 05:36:24,889 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:36:24,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669973498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:36:24,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:36:24,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-14 05:36:24,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602660231] [2024-11-14 05:36:24,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:36:24,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:36:24,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:36:24,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:36:24,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-14 05:36:24,893 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 05:36:26,982 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 05:36:29,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:36:31,511 WARN L539 Checker$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 05:36:33,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:36:36,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:36:37,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:36:37,711 INFO L93 Difference]: Finished difference Result 123 states and 149 transitions. [2024-11-14 05:36:37,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:36:37,712 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 05:36:37,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:36:37,714 INFO L225 Difference]: With dead ends: 123 [2024-11-14 05:36:37,714 INFO L226 Difference]: Without dead ends: 76 [2024-11-14 05:36:37,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 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 05:36:37,719 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 17 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 9 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s 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, 12.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:36:37,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 374 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 126 Invalid, 5 Unknown, 0 Unchecked, 12.7s Time] [2024-11-14 05:36:37,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-14 05:36:37,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-14 05:36:37,744 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 05:36:37,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 92 transitions. [2024-11-14 05:36:37,749 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 92 transitions. Word has length 56 [2024-11-14 05:36:37,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:36:37,751 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 92 transitions. [2024-11-14 05:36:37,751 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 05:36:37,751 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 92 transitions. [2024-11-14 05:36:37,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-14 05:36:37,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:36:37,756 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 05:36:37,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 05:36:37,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:36:37,957 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:36:37,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:36:37,957 INFO L85 PathProgramCache]: Analyzing trace with hash -274267873, now seen corresponding path program 1 times [2024-11-14 05:36:37,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:36:37,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406286488] [2024-11-14 05:36:37,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:36:37,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:36:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:36:59,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1828945132] [2024-11-14 05:36:59,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:36:59,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:36:59,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:36:59,894 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:36:59,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09839f45-2b48-40f6-9fa1-0e5f4bd4cb32/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process