./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_advance_harness.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 9a96b91703f0cc76adc9b0fdbd8386a96920c1be21a810b6415a59c2166f1461 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 06:55:55,016 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 06:55:55,062 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 06:55:55,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 06:55:55,066 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 06:55:55,089 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 06:55:55,090 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 06:55:55,090 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 06:55:55,090 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 06:55:55,090 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 06:55:55,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 06:55:55,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 06:55:55,091 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 06:55:55,091 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 06:55:55,091 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 06:55:55,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 06:55:55,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 06:55:55,092 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 06:55:55,092 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 06:55:55,092 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 06:55:55,092 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 06:55:55,092 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 06:55:55,092 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 06:55:55,093 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 06:55:55,093 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 06:55:55,093 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 06:55:55,093 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 06:55:55,093 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 06:55:55,093 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 06:55:55,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:55:55,093 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 06:55:55,093 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 06:55:55,093 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 06:55:55,094 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 06:55:55,094 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 06:55:55,094 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 06:55:55,094 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 06:55:55,094 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 06:55:55,094 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 06:55:55,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 06:55:55,094 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/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 -> 9a96b91703f0cc76adc9b0fdbd8386a96920c1be21a810b6415a59c2166f1461 [2025-03-17 06:55:55,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 06:55:55,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 06:55:55,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 06:55:55,321 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 06:55:55,322 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 06:55:55,322 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i [2025-03-17 06:55:56,453 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef9169ff6/8967e9bfeaf241ec98a50309e257a937/FLAGdf1ba8339 [2025-03-17 06:55:56,918 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 06:55:56,919 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i [2025-03-17 06:55:56,961 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef9169ff6/8967e9bfeaf241ec98a50309e257a937/FLAGdf1ba8339 [2025-03-17 06:55:57,026 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef9169ff6/8967e9bfeaf241ec98a50309e257a937 [2025-03-17 06:55:57,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 06:55:57,029 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 06:55:57,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 06:55:57,031 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 06:55:57,034 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 06:55:57,034 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:55:57" (1/1) ... [2025-03-17 06:55:57,035 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7af3a0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:57, skipping insertion in model container [2025-03-17 06:55:57,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:55:57" (1/1) ... [2025-03-17 06:55:57,107 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 06:55:57,351 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_advance_harness.i[4494,4507] [2025-03-17 06:55:57,362 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_advance_harness.i[4554,4567] [2025-03-17 06:55:57,933 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:57,933 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:57,934 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:57,934 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:57,937 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:57,945 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:57,946 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:57,947 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:57,947 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:58,359 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:58,360 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:58,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:55:58,489 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 06:55:58,502 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_advance_harness.i[4494,4507] [2025-03-17 06:55:58,503 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_advance_harness.i[4554,4567] [2025-03-17 06:55:58,551 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:58,553 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:58,554 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:58,555 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:58,555 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:58,561 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:58,561 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:58,562 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:58,562 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:58,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2025-03-17 06:55:58,739 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:58,739 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:55:58,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2025-03-17 06:55:58,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:55:58,946 INFO L204 MainTranslator]: Completed translation [2025-03-17 06:55:58,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:58 WrapperNode [2025-03-17 06:55:58,947 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 06:55:58,947 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 06:55:58,947 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 06:55:58,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 06:55:58,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:58" (1/1) ... [2025-03-17 06:55:59,022 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:58" (1/1) ... [2025-03-17 06:55:59,093 INFO L138 Inliner]: procedures = 680, calls = 2671, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 974 [2025-03-17 06:55:59,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 06:55:59,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 06:55:59,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 06:55:59,095 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 06:55:59,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:58" (1/1) ... [2025-03-17 06:55:59,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:58" (1/1) ... [2025-03-17 06:55:59,115 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:58" (1/1) ... [2025-03-17 06:55:59,184 INFO L175 MemorySlicer]: Split 591 memory accesses to 5 slices as follows [257, 2, 6, 81, 245]. 43 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [0, 2, 0, 12, 11]. The 508 writes are split as follows [257, 0, 2, 17, 232]. [2025-03-17 06:55:59,185 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:58" (1/1) ... [2025-03-17 06:55:59,185 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:58" (1/1) ... [2025-03-17 06:55:59,215 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:58" (1/1) ... [2025-03-17 06:55:59,217 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:58" (1/1) ... [2025-03-17 06:55:59,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:58" (1/1) ... [2025-03-17 06:55:59,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:58" (1/1) ... [2025-03-17 06:55:59,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 06:55:59,245 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 06:55:59,245 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 06:55:59,245 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 06:55:59,246 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:58" (1/1) ... [2025-03-17 06:55:59,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:55:59,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:55:59,281 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) [2025-03-17 06:55:59,283 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 [2025-03-17 06:55:59,301 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-17 06:55:59,302 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-17 06:55:59,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 06:55:59,302 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 06:55:59,302 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 06:55:59,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 06:55:59,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 06:55:59,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 06:55:59,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 06:55:59,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 06:55:59,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 06:55:59,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 06:55:59,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 06:55:59,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 06:55:59,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 06:55:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 06:55:59,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 06:55:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 06:55:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 06:55:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 06:55:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 06:55:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 06:55:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 06:55:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 06:55:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2025-03-17 06:55:59,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2025-03-17 06:55:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 06:55:59,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 06:55:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 06:55:59,305 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 06:55:59,305 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-17 06:55:59,305 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-17 06:55:59,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 06:55:59,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 06:55:59,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 06:55:59,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 06:55:59,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 06:55:59,306 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 06:55:59,306 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2025-03-17 06:55:59,306 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-03-17 06:55:59,306 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-03-17 06:55:59,306 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 06:55:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 06:55:59,558 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 06:55:59,560 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 06:55:59,603 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-17 06:55:59,656 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7342: havoc #t~ret656.base, #t~ret656.offset; [2025-03-17 06:55:59,704 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7399: havoc #t~mem681;havoc #t~mem682;havoc #t~short683;havoc #t~mem684.base, #t~mem684.offset;havoc #t~short685;havoc #t~mem686;havoc #t~mem687;havoc #t~mem688;havoc #t~short689;havoc #t~mem690;havoc #t~mem691.base, #t~mem691.offset;havoc #t~short692;havoc #t~short693;havoc #t~short694;havoc #t~short695; [2025-03-17 06:55:59,720 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 06:55:59,728 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6600: havoc #t~mem477; [2025-03-17 06:56:06,583 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8237: havoc aws_byte_buf_from_array_#t~mem1061#1;havoc aws_byte_buf_from_array_#t~mem1062#1.base, aws_byte_buf_from_array_#t~mem1062#1.offset;havoc aws_byte_buf_from_array_#t~mem1063#1;havoc aws_byte_buf_from_array_#t~mem1064#1.base, aws_byte_buf_from_array_#t~mem1064#1.offset;call ULTIMATE.dealloc(aws_byte_buf_from_array_~#buf~1#1.base, aws_byte_buf_from_array_~#buf~1#1.offset);havoc aws_byte_buf_from_array_~#buf~1#1.base, aws_byte_buf_from_array_~#buf~1#1.offset; [2025-03-17 06:56:06,583 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-17 06:56:06,648 INFO L? ?]: Removed 109 outVars from TransFormulas that were not future-live. [2025-03-17 06:56:06,648 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 06:56:06,661 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 06:56:06,664 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 06:56:06,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:56:06 BoogieIcfgContainer [2025-03-17 06:56:06,664 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 06:56:06,669 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 06:56:06,669 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 06:56:06,672 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 06:56:06,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:55:57" (1/3) ... [2025-03-17 06:56:06,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa6eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:56:06, skipping insertion in model container [2025-03-17 06:56:06,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:58" (2/3) ... [2025-03-17 06:56:06,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa6eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:56:06, skipping insertion in model container [2025-03-17 06:56:06,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:56:06" (3/3) ... [2025-03-17 06:56:06,675 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_advance_harness.i [2025-03-17 06:56:06,686 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 06:56:06,687 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_advance_harness.i that has 12 procedures, 167 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-03-17 06:56:06,736 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 06:56:06,746 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;@2e4019a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 06:56:06,746 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 06:56:06,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 100 states have (on average 1.22) internal successors, (122), 100 states have internal predecessors, (122), 55 states have call successors, (55), 11 states have call predecessors, (55), 11 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2025-03-17 06:56:06,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-03-17 06:56:06,758 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:56:06,760 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:56:06,760 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:56:06,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:56:06,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1110280003, now seen corresponding path program 1 times [2025-03-17 06:56:06,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:56:06,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565385350] [2025-03-17 06:56:06,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:56:06,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:57:13,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-17 06:57:13,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-17 06:57:13,599 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:57:13,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:57:14,276 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-03-17 06:57:14,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:57:14,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565385350] [2025-03-17 06:57:14,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565385350] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:57:14,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642161297] [2025-03-17 06:57:14,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:57:14,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:57:14,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:57:14,279 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:57:14,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process