./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f4877cca40595980101fbb98f82b1b3f363016b57821c488c5d2a98ecc206f92 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:20:32,986 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:20:33,093 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 05:20:33,101 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:20:33,102 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:20:33,146 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:20:33,147 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:20:33,148 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:20:33,150 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:20:33,151 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:20:33,152 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:20:33,153 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:20:33,153 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:20:33,154 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:20:33,157 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:20:33,157 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:20:33,158 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:20:33,158 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:20:33,163 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:20:33,163 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:20:33,164 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:20:33,165 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:20:33,167 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:20:33,167 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:20:33,169 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:20:33,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:20:33,170 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:20:33,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:20:33,186 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:20:33,187 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:20:33,187 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:20:33,188 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:20:33,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:20:33,188 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:20:33,189 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:20:33,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:20:33,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:20:33,190 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:20:33,191 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:20:33,191 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:20:33,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:20:33,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:20:33,192 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:20:33,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:20:33,193 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4877cca40595980101fbb98f82b1b3f363016b57821c488c5d2a98ecc206f92 [2024-11-09 05:20:33,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:20:33,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:20:33,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:20:33,580 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:20:33,581 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:20:33,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i Unable to find full path for "g++" [2024-11-09 05:20:35,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:20:36,197 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:20:36,198 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2024-11-09 05:20:36,247 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/bin/utaipan-verify-YMUCfTKeje/data/2d2245611/5e0adbb5e42f4a988f0387256e0a1b89/FLAGa61138d6e [2024-11-09 05:20:36,755 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/bin/utaipan-verify-YMUCfTKeje/data/2d2245611/5e0adbb5e42f4a988f0387256e0a1b89 [2024-11-09 05:20:36,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:20:36,759 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:20:36,760 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:20:36,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:20:36,767 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:20:36,768 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:20:36" (1/1) ... [2024-11-09 05:20:36,770 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6252e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:36, skipping insertion in model container [2024-11-09 05:20:36,770 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:20:36" (1/1) ... [2024-11-09 05:20:36,990 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:20:37,305 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_54984339-1097-4138-a605-ef3595b8f832/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2024-11-09 05:20:37,313 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_54984339-1097-4138-a605-ef3595b8f832/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2024-11-09 05:20:38,339 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:38,344 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:38,344 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:38,350 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:38,352 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:38,380 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:38,381 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:38,384 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:38,385 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:39,471 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:39,471 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:39,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:20:39,647 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:20:39,670 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_54984339-1097-4138-a605-ef3595b8f832/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2024-11-09 05:20:39,675 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_54984339-1097-4138-a605-ef3595b8f832/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2024-11-09 05:20:39,755 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:39,757 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:39,759 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:39,760 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:39,761 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:39,776 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:39,777 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:39,782 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:39,784 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:40,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2024-11-09 05:20:40,015 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:40,016 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:20:40,043 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2024-11-09 05:20:40,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:20:40,434 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:20:40,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:40 WrapperNode [2024-11-09 05:20:40,468 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:20:40,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:20:40,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:20:40,470 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:20:40,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:40" (1/1) ... [2024-11-09 05:20:40,592 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:40" (1/1) ... [2024-11-09 05:20:40,700 INFO L138 Inliner]: procedures = 680, calls = 2648, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 880 [2024-11-09 05:20:40,704 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:20:40,705 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:20:40,707 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:20:40,708 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:20:40,721 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:40" (1/1) ... [2024-11-09 05:20:40,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:40" (1/1) ... [2024-11-09 05:20:40,731 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:40" (1/1) ... [2024-11-09 05:20:40,732 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:40" (1/1) ... [2024-11-09 05:20:40,785 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:40" (1/1) ... [2024-11-09 05:20:40,788 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:40" (1/1) ... [2024-11-09 05:20:40,795 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:40" (1/1) ... [2024-11-09 05:20:40,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:40" (1/1) ... [2024-11-09 05:20:40,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:20:40,811 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:20:40,811 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:20:40,811 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:20:40,812 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:40" (1/1) ... [2024-11-09 05:20:40,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:20:40,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:20:40,867 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:20:40,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:20:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-09 05:20:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-09 05:20:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:20:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 05:20:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 05:20:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 05:20:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:20:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2024-11-09 05:20:40,915 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2024-11-09 05:20:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:20:40,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:20:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:20:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:20:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-09 05:20:40,917 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-09 05:20:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 05:20:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:20:40,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:20:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 05:20:40,918 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 05:20:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-09 05:20:40,918 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-09 05:20:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 05:20:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:20:40,918 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:20:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:20:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:20:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2024-11-09 05:20:40,919 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2024-11-09 05:20:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 05:20:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-09 05:20:40,919 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-09 05:20:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:20:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-11-09 05:20:40,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-11-09 05:20:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:20:41,349 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:20:41,352 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:20:48,336 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2024-11-09 05:20:48,337 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:20:48,938 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:20:48,940 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:20:48,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:20:48 BoogieIcfgContainer [2024-11-09 05:20:48,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:20:48,945 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:20:48,945 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:20:48,948 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:20:48,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:20:36" (1/3) ... [2024-11-09 05:20:48,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37072139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:20:48, skipping insertion in model container [2024-11-09 05:20:48,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:40" (2/3) ... [2024-11-09 05:20:48,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37072139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:20:48, skipping insertion in model container [2024-11-09 05:20:48,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:20:48" (3/3) ... [2024-11-09 05:20:48,952 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_harness.i [2024-11-09 05:20:48,971 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:20:48,971 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:20:49,096 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:20:49,107 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;@14ef7997, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:20:49,107 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:20:49,111 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 55 states have (on average 1.2) internal successors, (66), 56 states have internal predecessors, (66), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 05:20:49,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 05:20:49,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:49,124 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:20:49,125 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:20:49,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:49,133 INFO L85 PathProgramCache]: Analyzing trace with hash -535598175, now seen corresponding path program 1 times [2024-11-09 05:20:49,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:49,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944128943] [2024-11-09 05:20:49,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:49,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:22:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:23:48,444 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 05:23:48,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:23:48,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944128943] [2024-11-09 05:23:48,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944128943] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:23:48,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047976711] [2024-11-09 05:23:48,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:23:48,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:23:48,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:23:48,451 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:23:48,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54984339-1097-4138-a605-ef3595b8f832/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:26:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:26:02,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 7698 conjuncts, 129 conjuncts are in the unsatisfiable core [2024-11-09 05:26:02,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:26:02,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-09 05:26:05,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-09 05:26:06,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-09 05:26:09,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2024-11-09 05:26:09,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-09 05:26:09,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 15 [2024-11-09 05:26:09,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 05:26:34,087 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 05:26:34,087 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:32:59,145 WARN L286 SmtUtils]: Spent 6.34m on a formula simplification. DAG size of input: 1972 DAG size of output: 119 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)