./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_822c580a-411f-4cbd-aa87-e178d7ae8b7e/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822c580a-411f-4cbd-aa87-e178d7ae8b7e/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822c580a-411f-4cbd-aa87-e178d7ae8b7e/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822c580a-411f-4cbd-aa87-e178d7ae8b7e/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822c580a-411f-4cbd-aa87-e178d7ae8b7e/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822c580a-411f-4cbd-aa87-e178d7ae8b7e/bin/utaipan-verify-DbMuA5NWw2 --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 2c2f07b3e0aa6972fd7ec3621a91e2c0b72d907bfa5004c1888c101ab8ad4836 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:35:05,391 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:35:05,491 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822c580a-411f-4cbd-aa87-e178d7ae8b7e/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 12:35:05,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:35:05,501 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:35:05,534 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:35:05,535 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:35:05,536 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:35:05,537 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:35:05,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:35:05,539 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:35:05,539 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:35:05,540 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:35:05,540 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:35:05,542 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:35:05,543 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:35:05,543 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:35:05,544 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:35:05,544 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:35:05,544 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:35:05,548 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:35:05,549 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:35:05,549 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:35:05,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:35:05,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:35:05,550 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:35:05,551 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:35:05,551 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:35:05,551 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:35:05,551 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:35:05,552 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:35:05,553 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:35:05,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:35:05,555 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:35:05,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:35:05,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:35:05,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:35:05,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:35:05,556 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:35:05,557 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:35:05,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:35:05,557 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:35:05,558 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:35:05,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:35:05,558 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_822c580a-411f-4cbd-aa87-e178d7ae8b7e/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822c580a-411f-4cbd-aa87-e178d7ae8b7e/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c2f07b3e0aa6972fd7ec3621a91e2c0b72d907bfa5004c1888c101ab8ad4836 [2024-11-02 12:35:05,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:35:05,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:35:05,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:35:05,906 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:35:05,906 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:35:05,908 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822c580a-411f-4cbd-aa87-e178d7ae8b7e/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i Unable to find full path for "g++" [2024-11-02 12:35:08,048 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:35:08,604 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:35:08,605 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822c580a-411f-4cbd-aa87-e178d7ae8b7e/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i [2024-11-02 12:35:08,661 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822c580a-411f-4cbd-aa87-e178d7ae8b7e/bin/utaipan-verify-DbMuA5NWw2/data/ff532c941/86fd5dddaa8f47bd998cbdc3994d5803/FLAGe0ec35143 [2024-11-02 12:35:09,143 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822c580a-411f-4cbd-aa87-e178d7ae8b7e/bin/utaipan-verify-DbMuA5NWw2/data/ff532c941/86fd5dddaa8f47bd998cbdc3994d5803 [2024-11-02 12:35:09,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:35:09,151 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:35:09,154 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:35:09,155 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:35:09,162 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:35:09,162 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:35:09" (1/1) ... [2024-11-02 12:35:09,164 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@435853bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:09, skipping insertion in model container [2024-11-02 12:35:09,164 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:35:09" (1/1) ... [2024-11-02 12:35:09,330 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:35:09,687 WARN L251 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_822c580a-411f-4cbd-aa87-e178d7ae8b7e/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i[4499,4512] [2024-11-02 12:35:09,697 WARN L251 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_822c580a-411f-4cbd-aa87-e178d7ae8b7e/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i[4559,4572] [2024-11-02 12:35:11,078 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:11,079 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:11,079 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:11,080 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:11,081 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:11,097 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:11,098 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:11,101 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:11,101 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:12,148 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:12,149 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:12,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:35:12,337 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:35:12,361 WARN L251 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_822c580a-411f-4cbd-aa87-e178d7ae8b7e/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i[4499,4512] [2024-11-02 12:35:12,363 WARN L251 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_822c580a-411f-4cbd-aa87-e178d7ae8b7e/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i[4559,4572] [2024-11-02 12:35:12,434 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:12,434 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:12,435 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:12,436 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:12,438 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:12,446 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:12,447 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:12,448 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:12,449 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:12,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8221] [2024-11-02 12:35:12,621 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:12,622 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:12,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8707-8718] [2024-11-02 12:35:12,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:35:12,981 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:35:12,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:12 WrapperNode [2024-11-02 12:35:12,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:35:12,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:35:12,983 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:35:12,983 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:35:12,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:12" (1/1) ... [2024-11-02 12:35:13,139 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:12" (1/1) ... [2024-11-02 12:35:13,243 INFO L138 Inliner]: procedures = 682, calls = 2778, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 818 [2024-11-02 12:35:13,243 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:35:13,244 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:35:13,244 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:35:13,244 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:35:13,258 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:12" (1/1) ... [2024-11-02 12:35:13,259 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:12" (1/1) ... [2024-11-02 12:35:13,270 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:12" (1/1) ... [2024-11-02 12:35:13,270 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:12" (1/1) ... [2024-11-02 12:35:13,320 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:12" (1/1) ... [2024-11-02 12:35:13,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:12" (1/1) ... [2024-11-02 12:35:13,337 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:12" (1/1) ... [2024-11-02 12:35:13,345 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:12" (1/1) ... [2024-11-02 12:35:13,365 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:35:13,366 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:35:13,366 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:35:13,370 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:35:13,371 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:12" (1/1) ... [2024-11-02 12:35:13,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:35:13,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822c580a-411f-4cbd-aa87-e178d7ae8b7e/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:13,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822c580a-411f-4cbd-aa87-e178d7ae8b7e/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:35:13,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822c580a-411f-4cbd-aa87-e178d7ae8b7e/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:35:13,455 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-02 12:35:13,455 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-02 12:35:13,457 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-02 12:35:13,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-02 12:35:13,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:35:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-02 12:35:13,458 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-02 12:35:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 12:35:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:35:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-02 12:35:13,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-02 12:35:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:35:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:35:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 12:35:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:35:13,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:35:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-02 12:35:13,459 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-02 12:35:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 12:35:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure aws_secure_zero [2024-11-02 12:35:13,459 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_secure_zero [2024-11-02 12:35:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-02 12:35:13,459 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-02 12:35:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-02 12:35:13,460 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-02 12:35:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2024-11-02 12:35:13,460 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2024-11-02 12:35:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:35:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:35:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 12:35:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-02 12:35:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-02 12:35:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-02 12:35:13,462 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-02 12:35:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-02 12:35:13,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:35:13,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:35:13,819 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:35:13,822 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:35:20,904 INFO L? ?]: Removed 71 outVars from TransFormulas that were not future-live. [2024-11-02 12:35:20,904 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:35:21,532 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:35:21,533 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:35:21,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:35:21 BoogieIcfgContainer [2024-11-02 12:35:21,533 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:35:21,536 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:35:21,536 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:35:21,540 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:35:21,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:35:09" (1/3) ... [2024-11-02 12:35:21,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d3edc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:35:21, skipping insertion in model container [2024-11-02 12:35:21,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:12" (2/3) ... [2024-11-02 12:35:21,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d3edc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:35:21, skipping insertion in model container [2024-11-02 12:35:21,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:35:21" (3/3) ... [2024-11-02 12:35:21,543 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_destroy_secure_harness_negated.i [2024-11-02 12:35:21,563 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:35:21,563 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:35:21,632 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:35:21,639 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;@57b1b9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:35:21,640 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:35:21,645 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 45 states have (on average 1.2) internal successors, (54), 46 states have internal predecessors, (54), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-02 12:35:21,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-02 12:35:21,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:21,656 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-02 12:35:21,657 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:35:21,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:21,663 INFO L85 PathProgramCache]: Analyzing trace with hash 383669989, now seen corresponding path program 1 times [2024-11-02 12:35:21,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:21,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478652857] [2024-11-02 12:35:21,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:21,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms