./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 05e02581adbae65f3c76984e6696604355ca8e8f10cecf21271078f0821410f3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:02:06,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:02:06,859 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:02:06,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:02:06,864 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:02:06,889 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:02:06,890 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:02:06,890 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:02:06,891 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:02:06,891 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:02:06,891 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:02:06,891 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:02:06,892 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:02:06,892 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:02:06,892 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:02:06,892 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:02:06,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:02:06,893 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:02:06,893 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:02:06,893 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:02:06,893 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:02:06,893 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:02:06,893 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:02:06,893 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:02:06,893 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:02:06,893 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:02:06,893 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:02:06,893 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:02:06,894 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:02:06,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:02:06,894 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:02:06,894 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:02:06,894 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:02:06,894 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:02:06,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:02:06,895 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:02:06,895 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:02:06,895 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:02:06,895 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:02:06,895 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:02:06,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:02:06,895 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:02:06,895 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:02:06,895 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:02:06,895 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:02:06,895 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 05e02581adbae65f3c76984e6696604355ca8e8f10cecf21271078f0821410f3 [2025-01-09 17:02:07,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:02:07,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:02:07,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:02:07,123 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:02:07,123 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:02:07,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i [2025-01-09 17:02:09,001 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4bd36c9c3/dba026a7d3d446cc9fb059170268b084/FLAG9f72fc3aa [2025-01-09 17:02:09,422 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:02:09,423 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i [2025-01-09 17:02:09,455 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4bd36c9c3/dba026a7d3d446cc9fb059170268b084/FLAG9f72fc3aa [2025-01-09 17:02:09,472 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4bd36c9c3/dba026a7d3d446cc9fb059170268b084 [2025-01-09 17:02:09,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:02:09,476 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:02:09,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:02:09,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:02:09,480 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:02:09,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:02:09" (1/1) ... [2025-01-09 17:02:09,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@169ff71b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:02:09, skipping insertion in model container [2025-01-09 17:02:09,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:02:09" (1/1) ... [2025-01-09 17:02:09,538 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:02:09,720 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i[4497,4510] [2025-01-09 17:02:09,729 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i[4557,4570] [2025-01-09 17:02:10,184 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,185 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,185 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,186 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,186 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,194 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,194 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,195 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,196 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,587 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,588 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:02:10,708 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:02:10,721 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i[4497,4510] [2025-01-09 17:02:10,722 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i[4557,4570] [2025-01-09 17:02:10,752 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,753 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,753 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,753 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,753 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,759 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,760 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,761 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,761 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,843 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2025-01-09 17:02:10,847 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,850 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:02:10,859 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2025-01-09 17:02:10,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:02:11,050 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:02:11,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:02:11 WrapperNode [2025-01-09 17:02:11,051 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:02:11,052 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:02:11,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:02:11,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:02:11,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:02:11" (1/1) ... [2025-01-09 17:02:11,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:02:11" (1/1) ... [2025-01-09 17:02:11,165 INFO L138 Inliner]: procedures = 679, calls = 2616, calls flagged for inlining = 59, calls inlined = 6, statements flattened = 831 [2025-01-09 17:02:11,169 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:02:11,169 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:02:11,169 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:02:11,169 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:02:11,189 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:02:11" (1/1) ... [2025-01-09 17:02:11,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:02:11" (1/1) ... [2025-01-09 17:02:11,196 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:02:11" (1/1) ... [2025-01-09 17:02:11,247 INFO L175 MemorySlicer]: Split 535 memory accesses to 5 slices as follows [2, 257, 241, 30, 5]. 48 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]. [2025-01-09 17:02:11,247 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:02:11" (1/1) ... [2025-01-09 17:02:11,251 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:02:11" (1/1) ... [2025-01-09 17:02:11,269 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:02:11" (1/1) ... [2025-01-09 17:02:11,270 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:02:11" (1/1) ... [2025-01-09 17:02:11,272 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:02:11" (1/1) ... [2025-01-09 17:02:11,275 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:02:11" (1/1) ... [2025-01-09 17:02:11,285 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:02:11" (1/1) ... [2025-01-09 17:02:11,297 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:02:11,302 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:02:11,302 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:02:11,302 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:02:11,303 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:02:11" (1/1) ... [2025-01-09 17:02:11,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:02:11,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:02:11,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 17:02:11,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 17:02:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-01-09 17:02:11,352 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-01-09 17:02:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:02:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:02:11,352 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:02:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:02:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:02:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:02:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:02:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:02:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:02:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:02:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:02:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:02:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:02:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:02:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:02:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:02:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:02:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:02:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:02:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:02:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:02:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:02:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:02:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:02:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:02:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:02:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-01-09 17:02:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-01-09 17:02:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:02:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:02:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:02:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:02:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:02:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:02:11,356 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:02:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:02:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:02:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:02:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:02:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:02:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:02:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:02:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:02:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:02:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:02:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:02:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:02:11,356 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:02:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:02:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:02:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:02:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:02:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:02:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:02:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:02:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:02:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:02:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:02:11,576 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:02:11,578 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:02:18,521 INFO L? ?]: Removed 76 outVars from TransFormulas that were not future-live. [2025-01-09 17:02:18,521 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:02:18,527 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:02:18,528 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 17:02:18,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:02:18 BoogieIcfgContainer [2025-01-09 17:02:18,528 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:02:18,529 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:02:18,529 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:02:18,532 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:02:18,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:02:09" (1/3) ... [2025-01-09 17:02:18,533 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7614651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:02:18, skipping insertion in model container [2025-01-09 17:02:18,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:02:11" (2/3) ... [2025-01-09 17:02:18,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7614651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:02:18, skipping insertion in model container [2025-01-09 17:02:18,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:02:18" (3/3) ... [2025-01-09 17:02:18,535 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_from_c_str_harness-1.i [2025-01-09 17:02:18,544 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:02:18,546 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_from_c_str_harness-1.i that has 8 procedures, 92 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 17:02:18,585 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:02:18,593 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;@4619b78f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:02:18,594 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:02:18,596 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 62 states have (on average 1.2258064516129032) internal successors, (76), 63 states have internal predecessors, (76), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2025-01-09 17:02:18,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-01-09 17:02:18,601 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:02:18,602 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:02:18,602 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:02:18,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:02:18,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1814788681, now seen corresponding path program 1 times [2025-01-09 17:02:18,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:02:18,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063454878] [2025-01-09 17:02:18,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:02:18,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:03:25,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-09 17:03:26,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-09 17:03:26,288 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:03:26,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:03:28,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 17:03:28,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:03:28,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063454878] [2025-01-09 17:03:28,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063454878] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:03:28,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:03:28,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 17:03:28,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070278137] [2025-01-09 17:03:28,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:03:28,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 17:03:28,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:03:28,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 17:03:28,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:03:28,474 INFO L87 Difference]: Start difference. First operand has 92 states, 62 states have (on average 1.2258064516129032) internal successors, (76), 63 states have internal predecessors, (76), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-09 17:03:28,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:03:28,765 INFO L93 Difference]: Finished difference Result 177 states and 242 transitions. [2025-01-09 17:03:28,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 17:03:28,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2025-01-09 17:03:28,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:03:28,773 INFO L225 Difference]: With dead ends: 177 [2025-01-09 17:03:28,773 INFO L226 Difference]: Without dead ends: 87 [2025-01-09 17:03:28,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:03:28,777 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 17:03:28,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 431 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 17:03:28,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2025-01-09 17:03:28,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2025-01-09 17:03:28,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 57 states have (on average 1.1929824561403508) internal successors, (68), 60 states have internal predecessors, (68), 21 states have call successors, (21), 7 states have call predecessors, (21), 8 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2025-01-09 17:03:28,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 109 transitions. [2025-01-09 17:03:28,803 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 109 transitions. Word has length 23 [2025-01-09 17:03:28,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:03:28,803 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 109 transitions. [2025-01-09 17:03:28,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-09 17:03:28,804 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 109 transitions. [2025-01-09 17:03:28,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-01-09 17:03:28,804 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:03:28,805 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:03:28,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 17:03:28,805 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:03:28,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:03:28,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1149269628, now seen corresponding path program 1 times [2025-01-09 17:03:28,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:03:28,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501233354] [2025-01-09 17:03:28,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:03:28,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms