./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_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_22fad5eb-2b71-4802-94e9-b92de4a4317c/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22fad5eb-2b71-4802-94e9-b92de4a4317c/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_22fad5eb-2b71-4802-94e9-b92de4a4317c/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22fad5eb-2b71-4802-94e9-b92de4a4317c/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22fad5eb-2b71-4802-94e9-b92de4a4317c/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_22fad5eb-2b71-4802-94e9-b92de4a4317c/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 81878f133cf1520a898ab1dccc3c4ea8564ccc1e7b92efe6b8b73fb69d10ec78 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:45:34,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:45:34,716 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22fad5eb-2b71-4802-94e9-b92de4a4317c/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 03:45:34,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:45:34,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:45:34,772 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:45:34,774 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:45:34,775 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:45:34,775 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:45:34,775 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:45:34,776 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:45:34,776 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:45:34,776 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:45:34,776 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:45:34,776 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:45:34,776 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:45:34,778 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:45:34,778 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:45:34,779 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:45:34,779 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:45:34,779 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:45:34,779 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:45:34,779 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:45:34,780 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:45:34,780 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:45:34,780 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:45:34,780 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:45:34,780 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:45:34,780 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:45:34,780 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:45:34,780 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:45:34,781 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:45:34,781 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:45:34,781 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:45:34,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:45:34,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:45:34,782 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:45:34,782 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:45:34,783 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:45:34,783 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:45:34,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:45:34,783 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:45:34,783 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:45:34,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:45:34,784 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_22fad5eb-2b71-4802-94e9-b92de4a4317c/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 -> 81878f133cf1520a898ab1dccc3c4ea8564ccc1e7b92efe6b8b73fb69d10ec78 [2024-11-14 03:45:35,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:45:35,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:45:35,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:45:35,216 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:45:35,217 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:45:35,218 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22fad5eb-2b71-4802-94e9-b92de4a4317c/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i Unable to find full path for "g++" [2024-11-14 03:45:37,302 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:45:38,076 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:45:38,077 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22fad5eb-2b71-4802-94e9-b92de4a4317c/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i [2024-11-14 03:45:38,129 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22fad5eb-2b71-4802-94e9-b92de4a4317c/bin/utaipan-verify-sOmjnqqW8E/data/432a3d30f/3e86ef2c953844119073dbe5adc6137a/FLAG8dce157dd [2024-11-14 03:45:38,152 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22fad5eb-2b71-4802-94e9-b92de4a4317c/bin/utaipan-verify-sOmjnqqW8E/data/432a3d30f/3e86ef2c953844119073dbe5adc6137a [2024-11-14 03:45:38,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:45:38,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:45:38,157 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:45:38,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:45:38,163 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:45:38,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:45:38" (1/1) ... [2024-11-14 03:45:38,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e8d5ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:45:38, skipping insertion in model container [2024-11-14 03:45:38,165 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:45:38" (1/1) ... [2024-11-14 03:45:38,292 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:45:38,629 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_22fad5eb-2b71-4802-94e9-b92de4a4317c/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i[4501,4514] [2024-11-14 03:45:38,637 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_22fad5eb-2b71-4802-94e9-b92de4a4317c/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i[4561,4574] [2024-11-14 03:45:40,010 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:40,011 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:40,012 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:40,012 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:40,014 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:40,045 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:40,046 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:40,048 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:40,049 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,085 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,085 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,441 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,441 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,471 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,472 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,479 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,479 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,495 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,497 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,497 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,498 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,498 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,499 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,499 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:45:41,630 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:45:41,651 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_22fad5eb-2b71-4802-94e9-b92de4a4317c/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i[4501,4514] [2024-11-14 03:45:41,651 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_22fad5eb-2b71-4802-94e9-b92de4a4317c/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i[4561,4574] [2024-11-14 03:45:41,761 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,761 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,762 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,762 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,763 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,772 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,773 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,774 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,776 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8223] [2024-11-14 03:45:41,921 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:41,924 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:42,027 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:42,028 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:42,043 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:42,044 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:42,046 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:42,048 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:42,059 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:42,060 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:42,060 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:42,061 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:42,061 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:42,061 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:42,062 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:45:42,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:45:42,464 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:45:42,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:45:42 WrapperNode [2024-11-14 03:45:42,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:45:42,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:45:42,467 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:45:42,467 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:45:42,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:45:42" (1/1) ... [2024-11-14 03:45:42,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:45:42" (1/1) ... [2024-11-14 03:45:42,655 INFO L138 Inliner]: procedures = 757, calls = 3256, calls flagged for inlining = 77, calls inlined = 7, statements flattened = 402 [2024-11-14 03:45:42,655 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:45:42,656 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:45:42,656 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:45:42,656 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:45:42,665 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:45:42" (1/1) ... [2024-11-14 03:45:42,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:45:42" (1/1) ... [2024-11-14 03:45:42,671 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:45:42" (1/1) ... [2024-11-14 03:45:42,672 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:45:42" (1/1) ... [2024-11-14 03:45:42,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:45:42" (1/1) ... [2024-11-14 03:45:42,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:45:42" (1/1) ... [2024-11-14 03:45:42,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:45:42" (1/1) ... [2024-11-14 03:45:42,738 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:45:42" (1/1) ... [2024-11-14 03:45:42,747 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:45:42,748 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:45:42,748 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:45:42,748 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:45:42,750 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:45:42" (1/1) ... [2024-11-14 03:45:42,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:45:42,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22fad5eb-2b71-4802-94e9-b92de4a4317c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:45:42,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22fad5eb-2b71-4802-94e9-b92de4a4317c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:45:42,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22fad5eb-2b71-4802-94e9-b92de4a4317c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:45:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-14 03:45:42,832 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-14 03:45:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-14 03:45:42,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-14 03:45:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-14 03:45:42,833 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-14 03:45:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 03:45:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:45:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:45:42,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:45:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:45:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:45:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 03:45:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:45:42,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:45:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-14 03:45:42,833 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-14 03:45:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:45:42,834 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:45:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2024-11-14 03:45:42,834 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2024-11-14 03:45:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 03:45:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-14 03:45:42,834 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-14 03:45:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-14 03:45:42,834 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-14 03:45:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:45:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2024-11-14 03:45:42,834 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2024-11-14 03:45:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:45:43,197 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:45:43,199 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:45:48,481 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !true; [2024-11-14 03:45:48,557 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2024-11-14 03:45:48,557 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:45:49,096 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:45:49,096 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 03:45:49,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:45:49 BoogieIcfgContainer [2024-11-14 03:45:49,097 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:45:49,100 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:45:49,100 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:45:49,106 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:45:49,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:45:38" (1/3) ... [2024-11-14 03:45:49,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef59fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:45:49, skipping insertion in model container [2024-11-14 03:45:49,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:45:42" (2/3) ... [2024-11-14 03:45:49,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef59fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:45:49, skipping insertion in model container [2024-11-14 03:45:49,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:45:49" (3/3) ... [2024-11-14 03:45:49,109 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness_negated.i [2024-11-14 03:45:49,127 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:45:49,128 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_callback_string_eq_harness_negated.i that has 11 procedures, 91 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:45:49,210 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:45:49,228 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;@17f43f16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:45:49,229 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:45:49,235 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 52 states have internal predecessors, (63), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-14 03:45:49,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 03:45:49,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:45:49,250 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:45:49,250 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:45:49,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:45:49,257 INFO L85 PathProgramCache]: Analyzing trace with hash -71474407, now seen corresponding path program 1 times [2024-11-14 03:45:49,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:45:49,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719002705] [2024-11-14 03:45:49,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:45:49,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:47:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:47:11,238 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-14 03:47:11,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:47:11,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719002705] [2024-11-14 03:47:11,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719002705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:47:11,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:47:11,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:47:11,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221569563] [2024-11-14 03:47:11,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:47:11,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:47:11,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:47:11,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:47:11,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:47:11,281 INFO L87 Difference]: Start difference. First operand has 91 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 52 states have internal predecessors, (63), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-14 03:47:13,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:47:13,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:47:13,849 INFO L93 Difference]: Finished difference Result 117 states and 153 transitions. [2024-11-14 03:47:13,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:47:13,852 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 64 [2024-11-14 03:47:13,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:47:13,861 INFO L225 Difference]: With dead ends: 117 [2024-11-14 03:47:13,861 INFO L226 Difference]: Without dead ends: 87 [2024-11-14 03:47:13,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:47:13,870 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:47:13,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2024-11-14 03:47:13,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-14 03:47:13,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-14 03:47:13,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 49 states have internal predecessors, (56), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-14 03:47:13,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 111 transitions. [2024-11-14 03:47:13,947 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 111 transitions. Word has length 64 [2024-11-14 03:47:13,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:47:13,950 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 111 transitions. [2024-11-14 03:47:13,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-14 03:47:13,951 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 111 transitions. [2024-11-14 03:47:13,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-14 03:47:13,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:47:13,957 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:47:13,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:47:13,958 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:47:13,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:47:13,958 INFO L85 PathProgramCache]: Analyzing trace with hash -230829925, now seen corresponding path program 1 times [2024-11-14 03:47:13,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:47:13,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231320741] [2024-11-14 03:47:13,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:47:13,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:48:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:48:24,933 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-14 03:48:24,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:48:24,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231320741] [2024-11-14 03:48:24,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231320741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:48:24,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:48:24,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 03:48:24,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614999447] [2024-11-14 03:48:24,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:48:24,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 03:48:24,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:48:24,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 03:48:24,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:48:24,936 INFO L87 Difference]: Start difference. First operand 87 states and 111 transitions. Second operand has 10 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-14 03:48:27,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:48:29,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:48:31,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:48:33,908 WARN L539 Checker$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 03:48:36,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:48:38,459 WARN L539 Checker$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 03:48:40,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:48:43,062 WARN L539 Checker$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 03:48:45,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:48:47,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:48:47,155 INFO L93 Difference]: Finished difference Result 136 states and 171 transitions. [2024-11-14 03:48:47,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:48:47,157 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14) Word has length 66 [2024-11-14 03:48:47,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:48:47,159 INFO L225 Difference]: With dead ends: 136 [2024-11-14 03:48:47,160 INFO L226 Difference]: Without dead ends: 87 [2024-11-14 03:48:47,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:48:47,161 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 46 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 20 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:48:47,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 749 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 146 Invalid, 9 Unknown, 0 Unchecked, 22.0s Time] [2024-11-14 03:48:47,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-14 03:48:47,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-14 03:48:47,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 48 states have (on average 1.1458333333333333) internal successors, (55), 49 states have internal predecessors, (55), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-14 03:48:47,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 110 transitions. [2024-11-14 03:48:47,178 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 110 transitions. Word has length 66 [2024-11-14 03:48:47,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:48:47,179 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 110 transitions. [2024-11-14 03:48:47,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-14 03:48:47,179 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 110 transitions. [2024-11-14 03:48:47,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-14 03:48:47,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:48:47,182 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:48:47,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:48:47,182 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:48:47,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:48:47,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1239553484, now seen corresponding path program 1 times [2024-11-14 03:48:47,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:48:47,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691665665] [2024-11-14 03:48:47,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:48:47,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:49:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:03,820 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-14 03:50:03,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:50:03,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691665665] [2024-11-14 03:50:03,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691665665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:50:03,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:50:03,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-14 03:50:03,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338252275] [2024-11-14 03:50:03,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:50:03,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 03:50:03,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:50:03,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 03:50:03,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:50:03,823 INFO L87 Difference]: Start difference. First operand 87 states and 110 transitions. Second operand has 13 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 6 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 8 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-14 03:50:05,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:50:08,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:50:10,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:50:12,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:50:15,011 WARN L539 Checker$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 03:50:17,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:50:19,518 WARN L539 Checker$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 03:50:21,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:50:24,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:50:26,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:50:28,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:50:30,963 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 03:50:33,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:50:33,910 INFO L93 Difference]: Finished difference Result 160 states and 208 transitions. [2024-11-14 03:50:33,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 03:50:33,911 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 6 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 8 states have call predecessors, (15), 6 states have call successors, (15) Word has length 70 [2024-11-14 03:50:33,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:50:33,913 INFO L225 Difference]: With dead ends: 160 [2024-11-14 03:50:33,913 INFO L226 Difference]: Without dead ends: 118 [2024-11-14 03:50:33,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-11-14 03:50:33,914 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 80 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 26 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:50:33,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 843 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 246 Invalid, 12 Unknown, 0 Unchecked, 29.4s Time] [2024-11-14 03:50:33,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-14 03:50:33,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 100. [2024-11-14 03:50:33,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 55 states have (on average 1.1272727272727272) internal successors, (62), 56 states have internal predecessors, (62), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-14 03:50:33,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 129 transitions. [2024-11-14 03:50:33,931 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 129 transitions. Word has length 70 [2024-11-14 03:50:33,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:50:33,931 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 129 transitions. [2024-11-14 03:50:33,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 6 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 8 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-14 03:50:33,932 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 129 transitions. [2024-11-14 03:50:33,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-14 03:50:33,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:50:33,934 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:50:33,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:50:33,935 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:50:33,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:50:33,935 INFO L85 PathProgramCache]: Analyzing trace with hash 277589817, now seen corresponding path program 1 times [2024-11-14 03:50:33,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:50:33,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168738480] [2024-11-14 03:50:33,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:33,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:51:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:43,833 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-14 03:51:43,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:51:43,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168738480] [2024-11-14 03:51:43,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168738480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:51:43,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:51:43,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-14 03:51:43,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488718981] [2024-11-14 03:51:43,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:51:43,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 03:51:43,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:51:43,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 03:51:43,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-14 03:51:43,836 INFO L87 Difference]: Start difference. First operand 100 states and 129 transitions. Second operand has 14 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 6 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 8 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-14 03:51:45,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:51:48,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:51:50,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:51:52,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:51:55,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:51:57,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:51:59,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:52:02,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:52:04,340 WARN L539 Checker$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 03:52:06,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:52:08,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:52:11,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:52:13,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:52:17,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:52:17,038 INFO L93 Difference]: Finished difference Result 123 states and 154 transitions. [2024-11-14 03:52:17,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:52:17,039 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 6 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 8 states have call predecessors, (16), 5 states have call successors, (16) Word has length 74 [2024-11-14 03:52:17,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:52:17,041 INFO L225 Difference]: With dead ends: 123 [2024-11-14 03:52:17,041 INFO L226 Difference]: Without dead ends: 100 [2024-11-14 03:52:17,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2024-11-14 03:52:17,043 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 62 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 28 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:52:17,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 950 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 235 Invalid, 13 Unknown, 0 Unchecked, 32.3s Time] [2024-11-14 03:52:17,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-14 03:52:17,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-14 03:52:17,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 56 states have internal predecessors, (61), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-14 03:52:17,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 128 transitions. [2024-11-14 03:52:17,070 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 128 transitions. Word has length 74 [2024-11-14 03:52:17,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:52:17,071 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 128 transitions. [2024-11-14 03:52:17,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 6 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 8 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-14 03:52:17,071 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 128 transitions. [2024-11-14 03:52:17,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 03:52:17,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:52:17,074 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:52:17,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 03:52:17,074 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:52:17,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:52:17,075 INFO L85 PathProgramCache]: Analyzing trace with hash 566019147, now seen corresponding path program 1 times [2024-11-14 03:52:17,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:52:17,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490019775] [2024-11-14 03:52:17,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:52:17,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:53:24,143 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:53:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:53:32,901 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:53:32,902 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:53:32,903 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:53:32,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:53:32,909 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-14 03:53:32,986 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:53:32,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:53:32 BoogieIcfgContainer [2024-11-14 03:53:32,992 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:53:32,993 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:53:32,996 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:53:32,996 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:53:32,997 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:45:49" (3/4) ... [2024-11-14 03:53:32,998 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-14 03:53:33,231 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22fad5eb-2b71-4802-94e9-b92de4a4317c/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 03:53:33,231 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:53:33,232 INFO L158 Benchmark]: Toolchain (without parser) took 475076.48ms. Allocated memory was 142.6MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 108.1MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 342.3MB. Max. memory is 16.1GB. [2024-11-14 03:53:33,232 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:53:33,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4308.87ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 107.8MB in the beginning and 296.3MB in the end (delta: -188.5MB). Peak memory consumption was 102.0MB. Max. memory is 16.1GB. [2024-11-14 03:53:33,232 INFO L158 Benchmark]: Boogie Procedure Inliner took 189.06ms. Allocated memory is still 427.8MB. Free memory was 296.3MB in the beginning and 284.7MB in the end (delta: 11.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:53:33,232 INFO L158 Benchmark]: Boogie Preprocessor took 90.86ms. Allocated memory is still 427.8MB. Free memory was 284.7MB in the beginning and 279.9MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:53:33,233 INFO L158 Benchmark]: RCFGBuilder took 6349.33ms. Allocated memory was 427.8MB in the beginning and 755.0MB in the end (delta: 327.2MB). Free memory was 279.9MB in the beginning and 630.4MB in the end (delta: -350.5MB). Peak memory consumption was 169.3MB. Max. memory is 16.1GB. [2024-11-14 03:53:33,233 INFO L158 Benchmark]: TraceAbstraction took 463891.83ms. Allocated memory was 755.0MB in the beginning and 3.1GB in the end (delta: 2.3GB). Free memory was 630.4MB in the beginning and 2.7GB in the end (delta: -2.1GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2024-11-14 03:53:33,233 INFO L158 Benchmark]: Witness Printer took 237.80ms. Allocated memory is still 3.1GB. Free memory was 2.7GB in the beginning and 2.9GB in the end (delta: -164.5MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2024-11-14 03:53:33,240 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4308.87ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 107.8MB in the beginning and 296.3MB in the end (delta: -188.5MB). Peak memory consumption was 102.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 189.06ms. Allocated memory is still 427.8MB. Free memory was 296.3MB in the beginning and 284.7MB in the end (delta: 11.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.86ms. Allocated memory is still 427.8MB. Free memory was 284.7MB in the beginning and 279.9MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 6349.33ms. Allocated memory was 427.8MB in the beginning and 755.0MB in the end (delta: 327.2MB). Free memory was 279.9MB in the beginning and 630.4MB in the end (delta: -350.5MB). Peak memory consumption was 169.3MB. Max. memory is 16.1GB. * TraceAbstraction took 463891.83ms. Allocated memory was 755.0MB in the beginning and 3.1GB in the end (delta: 2.3GB). Free memory was 630.4MB in the beginning and 2.7GB in the end (delta: -2.1GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. * Witness Printer took 237.80ms. Allocated memory is still 3.1GB. Free memory was 2.7GB in the beginning and 2.9GB in the end (delta: -164.5MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 8223]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8223] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 223]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6867-L6872] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7602-L7614] static const uint8_t s_tolower_table[256] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 91, 92, 93, 94, 95, 96, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255}; [L11294] CALL aws_hash_callback_string_eq_harness() [L11284] CALL, EXPR ensure_string_is_allocated_bounded_length(96) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6802] CALL, EXPR nondet_uint64_t() VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L266] return __VERIFIER_nondet_ulong(); [L6802] RET, EXPR nondet_uint64_t() VAL [\old(max_size)=96, max_size=96, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6802] size_t len = nondet_uint64_t(); [L6803] CALL assume_abort_if_not(len < max_size) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L211] COND FALSE !(!cond) [L6803] RET assume_abort_if_not(len < max_size) VAL [\old(max_size)=96, len=((unsigned __int128) 1 << 64), max_size=96, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6804] CALL, EXPR ensure_string_is_allocated(len) [L6808] CALL, EXPR bounded_malloc(sizeof(struct aws_string) + len + 1) VAL [\old(size)=(((unsigned __int128) 1 << 64) | 17), s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6884-L6886] CALL assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L211] COND FALSE !(!cond) [L6884-L6886] RET assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) VAL [\old(size)=(((unsigned __int128) 1 << 64) | 17), s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, size=(((unsigned __int128) 1 << 64) | 17)] [L6887] return malloc(size); [L6808] RET, EXPR bounded_malloc(sizeof(struct aws_string) + len + 1) VAL [len=((unsigned __int128) 1 << 64), s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6808] struct aws_string *str = bounded_malloc(sizeof(struct aws_string) + len + 1); [L6811] CALL, EXPR nondet_bool() VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L261] return __VERIFIER_nondet_bool(); [L6811] RET, EXPR nondet_bool() VAL [len=((unsigned __int128) 1 << 64), s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}] [L6811-L6812] EXPR nondet_bool() ? can_fail_allocator() : ((void *)0) VAL [len=((unsigned __int128) 1 << 64), s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}] [L6811-L6812] *(struct aws_allocator **)(&str->allocator) = nondet_bool() ? can_fail_allocator() : ((void *)0) [L6814] *(size_t *)(&str->len) = len [L6815] *(uint8_t *)&str->bytes[len] = '\0' [L6816] return str; [L6804] RET, EXPR ensure_string_is_allocated(len) [L6804] return ensure_string_is_allocated(len); [L11284] RET, EXPR ensure_string_is_allocated_bounded_length(96) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L11284] const struct aws_string *str1 = ensure_string_is_allocated_bounded_length(96); [L11285] CALL, EXPR nondet_bool() VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L261] return __VERIFIER_nondet_bool(); [L11285] RET, EXPR nondet_bool() VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str1={-2:0}] [L11285] EXPR nondet_bool() ? str1 : ensure_string_is_allocated_bounded_length(96) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str1={-2:0}] [L11285] const struct aws_string *str2 = nondet_bool() ? str1 : ensure_string_is_allocated_bounded_length(96); [L11288] CALL aws_hash_callback_string_eq(str1, str2) [L10771] CALL, EXPR aws_string_is_valid(a) VAL [\old(str)={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) [L6245] EXPR str->len [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0 [L6245] EXPR str->len [L6245] EXPR str->bytes[str->len] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0 [L6245] return str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0; [L10771] RET, EXPR aws_string_is_valid(a) VAL [a={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L10771] CALL assume_abort_if_not((aws_string_is_valid(a))) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L211] COND FALSE !(!cond) [L10771] RET assume_abort_if_not((aws_string_is_valid(a))) VAL [a={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L10772] CALL, EXPR aws_string_is_valid(b) VAL [\old(str)={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) [L6245] EXPR str->len [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0 [L6245] EXPR str->len [L6245] EXPR str->bytes[str->len] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0 [L6245] return str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0; [L10772] RET, EXPR aws_string_is_valid(b) VAL [a={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L10772] CALL assume_abort_if_not((aws_string_is_valid(b))) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L211] COND FALSE !(!cond) [L10772] RET assume_abort_if_not((aws_string_is_valid(b))) VAL [a={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L10775] CALL, EXPR aws_string_eq(a, b) [L11024] EXPR !a || aws_string_is_valid(a) VAL [a={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L11024] CALL, EXPR aws_string_is_valid(a) VAL [\old(str)={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) [L6245] EXPR str->len [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0 [L6245] EXPR str->len [L6245] EXPR str->bytes[str->len] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0 [L6245] return str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0; [L11024] RET, EXPR aws_string_is_valid(a) VAL [a={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L11024] EXPR !a || aws_string_is_valid(a) VAL [a={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L11024] CALL assume_abort_if_not((!a || aws_string_is_valid(a))) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L211] COND FALSE !(!cond) [L11024] RET assume_abort_if_not((!a || aws_string_is_valid(a))) VAL [a={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L11025] EXPR !b || aws_string_is_valid(b) VAL [a={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L11025] CALL, EXPR aws_string_is_valid(b) VAL [\old(str)={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) [L6245] EXPR str->len [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0 [L6245] EXPR str->len [L6245] EXPR str->bytes[str->len] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0 [L6245] return str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0; [L11025] RET, EXPR aws_string_is_valid(b) VAL [a={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L11025] EXPR !b || aws_string_is_valid(b) VAL [a={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L11025] CALL assume_abort_if_not((!b || aws_string_is_valid(b))) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L211] COND FALSE !(!cond) [L11025] RET assume_abort_if_not((!b || aws_string_is_valid(b))) VAL [a={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L11026] COND TRUE a == b [L11027-L11029] return 1 ; VAL [\result=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L10775] RET, EXPR aws_string_eq(a, b) [L10774-L10775] _Bool rval = aws_string_eq(a, b); [L10776] CALL, EXPR aws_c_string_is_valid(a) VAL [\old(str)={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6260] return str && ((((1)) == 0) || ((str))); [L10776] RET, EXPR aws_c_string_is_valid(a) VAL [a={-2:0}, b={-2:0}, rval=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L10776] EXPR aws_c_string_is_valid(a) && aws_c_string_is_valid(b) VAL [a={-2:0}, b={-2:0}, rval=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L10776] CALL, EXPR aws_c_string_is_valid(b) VAL [\old(str)={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6260] return str && ((((1)) == 0) || ((str))); [L10776] RET, EXPR aws_c_string_is_valid(b) VAL [a={-2:0}, b={-2:0}, rval=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L10776] EXPR aws_c_string_is_valid(a) && aws_c_string_is_valid(b) VAL [a={-2:0}, b={-2:0}, rval=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L10776] CALL __VERIFIER_assert(!((aws_c_string_is_valid(a) && aws_c_string_is_valid(b)))) VAL [\old(cond)=0, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L223] COND TRUE !cond VAL [\old(cond)=0, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L223] reach_error() VAL [\old(cond)=0, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 463.7s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 88.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 35 mSolverCounterUnknown, 209 SdHoareTripleChecker+Valid, 86.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 188 mSDsluCounter, 2648 SdHoareTripleChecker+Invalid, 75.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2276 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 637 IncrementalHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 372 mSDtfsCounter, 637 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=3, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 9.4s SatisfiabilityAnalysisTime, 17.7s InterpolantComputationTime, 352 NumberOfCodeBlocks, 352 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 270 ConstructedInterpolants, 0 QuantifiedInterpolants, 501 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 150/150 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-14 03:53:33,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22fad5eb-2b71-4802-94e9-b92de4a4317c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE