./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ffc5622edb0e5dae45a60aa5046e3a2e4ecb08ca23d6136859ed729b95a19519 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 08:41:36,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 08:41:36,445 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-12 08:41:36,448 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 08:41:36,449 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 08:41:36,472 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 08:41:36,472 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 08:41:36,473 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 08:41:36,473 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 08:41:36,475 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 08:41:36,475 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 08:41:36,475 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 08:41:36,476 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 08:41:36,477 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 08:41:36,478 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 08:41:36,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 08:41:36,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 08:41:36,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 08:41:36,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 08:41:36,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 08:41:36,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 08:41:36,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 08:41:36,480 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 08:41:36,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 08:41:36,482 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 08:41:36,482 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 08:41:36,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 08:41:36,482 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 08:41:36,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 08:41:36,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:41:36,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 08:41:36,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 08:41:36,483 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 08:41:36,483 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 08:41:36,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 08:41:36,483 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 08:41:36,484 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 08:41:36,484 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 08:41:36,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 08:41:36,485 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffc5622edb0e5dae45a60aa5046e3a2e4ecb08ca23d6136859ed729b95a19519 [2024-11-12 08:41:36,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 08:41:36,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 08:41:36,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 08:41:36,743 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 08:41:36,747 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 08:41:36,749 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness_negated.i [2024-11-12 08:41:38,311 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 08:41:38,736 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 08:41:38,736 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness_negated.i [2024-11-12 08:41:38,776 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1388fb36/bbd9903d57e546f9931db1d474ef57c4/FLAG3d2254efc [2024-11-12 08:41:38,791 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1388fb36/bbd9903d57e546f9931db1d474ef57c4 [2024-11-12 08:41:38,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 08:41:38,794 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 08:41:38,796 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 08:41:38,796 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 08:41:38,801 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 08:41:38,802 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:41:38" (1/1) ... [2024-11-12 08:41:38,803 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f9cc82c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:41:38, skipping insertion in model container [2024-11-12 08:41:38,803 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:41:38" (1/1) ... [2024-11-12 08:41:38,964 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 08:41:39,242 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness_negated.i[4503,4516] [2024-11-12 08:41:39,251 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness_negated.i[4563,4576] [2024-11-12 08:41:39,731 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:39,731 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:39,732 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:39,736 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:39,737 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:39,752 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:39,755 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:39,757 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:39,757 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:40,173 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:40,174 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:40,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:41:40,259 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 08:41:40,272 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness_negated.i[4503,4516] [2024-11-12 08:41:40,272 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness_negated.i[4563,4576] [2024-11-12 08:41:40,299 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:40,300 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:40,300 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:40,300 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:40,301 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:40,305 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:40,305 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:40,306 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:40,306 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:40,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2024-11-12 08:41:40,410 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:40,410 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:41:40,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8723-8734] [2024-11-12 08:41:40,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:41:40,760 INFO L204 MainTranslator]: Completed translation [2024-11-12 08:41:40,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:41:40 WrapperNode [2024-11-12 08:41:40,761 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 08:41:40,762 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 08:41:40,762 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 08:41:40,763 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 08:41:40,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:41:40" (1/1) ... [2024-11-12 08:41:40,856 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:41:40" (1/1) ... [2024-11-12 08:41:40,926 INFO L138 Inliner]: procedures = 679, calls = 2609, calls flagged for inlining = 58, calls inlined = 5, statements flattened = 793 [2024-11-12 08:41:40,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 08:41:40,927 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 08:41:40,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 08:41:40,927 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 08:41:40,936 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:41:40" (1/1) ... [2024-11-12 08:41:40,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:41:40" (1/1) ... [2024-11-12 08:41:40,949 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:41:40" (1/1) ... [2024-11-12 08:41:41,011 INFO L175 MemorySlicer]: Split 529 memory accesses to 5 slices as follows [2, 257, 240, 25, 5]. 49 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 6, 4, 5]. The 493 writes are split as follows [0, 257, 232, 4, 0]. [2024-11-12 08:41:41,014 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:41:40" (1/1) ... [2024-11-12 08:41:41,014 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:41:40" (1/1) ... [2024-11-12 08:41:41,046 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:41:40" (1/1) ... [2024-11-12 08:41:41,050 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:41:40" (1/1) ... [2024-11-12 08:41:41,061 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:41:40" (1/1) ... [2024-11-12 08:41:41,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:41:40" (1/1) ... [2024-11-12 08:41:41,079 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 08:41:41,080 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 08:41:41,080 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 08:41:41,080 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 08:41:41,081 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:41:40" (1/1) ... [2024-11-12 08:41:41,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:41:41,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:41:41,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 08:41:41,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 08:41:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-12 08:41:41,148 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-12 08:41:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 08:41:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-12 08:41:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-12 08:41:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-12 08:41:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-12 08:41:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-12 08:41:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 08:41:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 08:41:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 08:41:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 08:41:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-12 08:41:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 08:41:41,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 08:41:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 08:41:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 08:41:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 08:41:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 08:41:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 08:41:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 08:41:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-12 08:41:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 08:41:41,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 08:41:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-12 08:41:41,151 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-12 08:41:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-12 08:41:41,151 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-12 08:41:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-12 08:41:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-12 08:41:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-12 08:41:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-12 08:41:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-12 08:41:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 08:41:41,152 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 08:41:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 08:41:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 08:41:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 08:41:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 08:41:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-12 08:41:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-12 08:41:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 08:41:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 08:41:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-12 08:41:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-12 08:41:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-12 08:41:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-12 08:41:41,158 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-12 08:41:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 08:41:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 08:41:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 08:41:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 08:41:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-12 08:41:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 08:41:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 08:41:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 08:41:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 08:41:41,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-12 08:41:41,387 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 08:41:41,389 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 08:41:49,073 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-11-12 08:41:49,073 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 08:41:49,086 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 08:41:49,087 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 08:41:49,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:41:49 BoogieIcfgContainer [2024-11-12 08:41:49,087 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 08:41:49,089 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 08:41:49,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 08:41:49,092 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 08:41:49,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:41:38" (1/3) ... [2024-11-12 08:41:49,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2645bd75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:41:49, skipping insertion in model container [2024-11-12 08:41:49,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:41:40" (2/3) ... [2024-11-12 08:41:49,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2645bd75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:41:49, skipping insertion in model container [2024-11-12 08:41:49,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:41:49" (3/3) ... [2024-11-12 08:41:49,094 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_from_empty_array_harness_negated.i [2024-11-12 08:41:49,107 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 08:41:49,108 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 08:41:49,162 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 08:41:49,169 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=PETRI_NET, 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;@551f31e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 08:41:49,169 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 08:41:49,172 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 52 states have internal predecessors, (63), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-12 08:41:49,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-12 08:41:49,177 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:41:49,178 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 08:41:49,178 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:41:49,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:41:49,183 INFO L85 PathProgramCache]: Analyzing trace with hash 2082211251, now seen corresponding path program 1 times [2024-11-12 08:41:49,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:41:49,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44691921] [2024-11-12 08:41:49,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:41:49,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:43:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:43:05,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:43:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:43:05,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-12 08:43:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:43:05,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:43:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:43:05,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-12 08:43:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:43:05,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-12 08:43:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:43:05,739 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 08:43:05,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:43:05,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44691921] [2024-11-12 08:43:05,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44691921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:43:05,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:43:05,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 08:43:05,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67655202] [2024-11-12 08:43:05,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:43:05,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:43:05,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:43:05,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:43:05,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:43:05,790 INFO L87 Difference]: Start difference. First operand has 74 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 52 states have internal predecessors, (63), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-12 08:43:09,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 08:43:11,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 08:43:11,645 INFO L93 Difference]: Finished difference Result 138 states and 185 transitions. [2024-11-12 08:43:11,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:43:11,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2024-11-12 08:43:11,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 08:43:11,665 INFO L225 Difference]: With dead ends: 138 [2024-11-12 08:43:11,666 INFO L226 Difference]: Without dead ends: 67 [2024-11-12 08:43:11,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:43:11,680 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 36 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-12 08:43:11,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 74 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 55 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2024-11-12 08:43:11,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-12 08:43:11,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-11-12 08:43:11,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 46 states have internal predecessors, (53), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-12 08:43:11,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 82 transitions. [2024-11-12 08:43:11,735 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 82 transitions. Word has length 34 [2024-11-12 08:43:11,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 08:43:11,736 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 82 transitions. [2024-11-12 08:43:11,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-12 08:43:11,736 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 82 transitions. [2024-11-12 08:43:11,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-12 08:43:11,738 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:43:11,738 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 08:43:11,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 08:43:11,739 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:43:11,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:43:11,739 INFO L85 PathProgramCache]: Analyzing trace with hash -734344333, now seen corresponding path program 1 times [2024-11-12 08:43:11,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:43:11,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112034214] [2024-11-12 08:43:11,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:43:11,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms