./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 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_from_c_str_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 979d4544ed7a4a819d06bd545bc402347e028009bb631538cf6c19233d498345 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:40:03,615 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:40:03,673 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:40:03,680 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:40:03,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:40:03,701 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:40:03,702 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:40:03,702 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:40:03,702 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:40:03,703 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:40:03,703 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:40:03,704 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:40:03,704 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:40:03,704 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:40:03,704 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:40:03,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:40:03,704 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:40:03,704 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:40:03,704 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:40:03,704 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:40:03,704 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:40:03,704 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:40:03,704 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:40:03,704 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:40:03,704 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:40:03,704 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:40:03,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:40:03,704 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:40:03,704 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:40:03,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:40:03,705 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:40:03,705 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:40:03,705 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:40:03,705 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:40:03,705 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:40:03,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:40:03,705 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:40:03,705 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:40:03,705 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:40:03,705 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:40:03,705 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 -> 979d4544ed7a4a819d06bd545bc402347e028009bb631538cf6c19233d498345 [2025-03-04 02:40:03,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:40:03,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:40:03,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:40:03,969 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:40:03,969 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:40:03,970 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness_negated.i [2025-03-04 02:40:05,100 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/339b4abb6/d016d23e42674b01aea70aef36a70fc0/FLAG072b463b8 [2025-03-04 02:40:05,612 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:40:05,612 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness_negated.i [2025-03-04 02:40:05,650 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/339b4abb6/d016d23e42674b01aea70aef36a70fc0/FLAG072b463b8 [2025-03-04 02:40:05,666 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/339b4abb6/d016d23e42674b01aea70aef36a70fc0 [2025-03-04 02:40:05,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:40:05,670 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:40:05,672 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:40:05,672 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:40:05,676 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:40:05,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:40:05" (1/1) ... [2025-03-04 02:40:05,677 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52a382ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:40:05, skipping insertion in model container [2025-03-04 02:40:05,677 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:40:05" (1/1) ... [2025-03-04 02:40:05,750 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:40:05,934 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_c_str_harness_negated.i[4497,4510] [2025-03-04 02:40:05,943 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_c_str_harness_negated.i[4557,4570] [2025-03-04 02:40:06,533 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:06,533 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:06,535 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:06,536 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:06,537 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:06,547 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:06,550 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:06,551 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:06,552 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:07,059 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:07,060 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:07,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:40:07,199 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:40:07,212 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_c_str_harness_negated.i[4497,4510] [2025-03-04 02:40:07,213 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_c_str_harness_negated.i[4557,4570] [2025-03-04 02:40:07,251 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:07,252 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:07,252 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:07,252 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:07,252 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:07,262 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:07,263 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:07,264 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:07,264 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:07,353 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2025-03-04 02:40:07,355 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:07,356 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:40:07,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8723-8734] [2025-03-04 02:40:07,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:40:07,548 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:40:07,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:40:07 WrapperNode [2025-03-04 02:40:07,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:40:07,550 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:40:07,550 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:40:07,550 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:40:07,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:40:07" (1/1) ... [2025-03-04 02:40:07,608 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:40:07" (1/1) ... [2025-03-04 02:40:07,691 INFO L138 Inliner]: procedures = 679, calls = 2616, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 831 [2025-03-04 02:40:07,691 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:40:07,692 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:40:07,692 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:40:07,692 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:40:07,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:40:07" (1/1) ... [2025-03-04 02:40:07,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:40:07" (1/1) ... [2025-03-04 02:40:07,703 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:40:07" (1/1) ... [2025-03-04 02:40:07,750 INFO L175 MemorySlicer]: Split 536 memory accesses to 5 slices as follows [2, 257, 241, 31, 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]. [2025-03-04 02:40:07,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:40:07" (1/1) ... [2025-03-04 02:40:07,752 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:40:07" (1/1) ... [2025-03-04 02:40:07,786 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:40:07" (1/1) ... [2025-03-04 02:40:07,788 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:40:07" (1/1) ... [2025-03-04 02:40:07,798 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:40:07" (1/1) ... [2025-03-04 02:40:07,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:40:07" (1/1) ... [2025-03-04 02:40:07,818 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:40:07,819 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:40:07,819 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:40:07,819 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:40:07,820 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:40:07" (1/1) ... [2025-03-04 02:40:07,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:40:07,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:40:07,851 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) [2025-03-04 02:40:07,854 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 [2025-03-04 02:40:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-04 02:40:07,874 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-04 02:40:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:40:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:40:07,875 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:40:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:40:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:40:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:40:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:40:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:40:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:40:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:40:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:40:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:40:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:40:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:40:07,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:40:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:40:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:40:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:40:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:40:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:40:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:40:07,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:40:07,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:40:07,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:40:07,877 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:40:07,877 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:40:07,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:40:07,878 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 02:40:07,878 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:40:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:40:07,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:40:08,082 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:40:08,084 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:40:08,107 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-04 02:40:08,109 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 02:40:08,155 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7345: havoc #t~mem678;havoc #t~mem679;havoc #t~short680;havoc #t~mem681.base, #t~mem681.offset;havoc #t~short682;havoc #t~mem683;havoc #t~mem684;havoc #t~mem685;havoc #t~short686;havoc #t~mem687;havoc #t~mem688.base, #t~mem688.offset;havoc #t~short689;havoc #t~short690;havoc #t~short691;havoc #t~short692; [2025-03-04 02:40:08,167 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:40:14,712 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L8168: havoc aws_byte_buf_from_c_str_#t~mem1053#1;havoc aws_byte_buf_from_c_str_#t~mem1054#1.base, aws_byte_buf_from_c_str_#t~mem1054#1.offset;havoc aws_byte_buf_from_c_str_#t~mem1055#1;havoc aws_byte_buf_from_c_str_#t~mem1056#1.base, aws_byte_buf_from_c_str_#t~mem1056#1.offset;call ULTIMATE.dealloc(aws_byte_buf_from_c_str_~#buf~0#1.base, aws_byte_buf_from_c_str_~#buf~0#1.offset);havoc aws_byte_buf_from_c_str_~#buf~0#1.base, aws_byte_buf_from_c_str_~#buf~0#1.offset; [2025-03-04 02:40:14,736 INFO L? ?]: Removed 76 outVars from TransFormulas that were not future-live. [2025-03-04 02:40:14,736 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:40:14,745 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:40:14,746 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:40:14,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:40:14 BoogieIcfgContainer [2025-03-04 02:40:14,746 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:40:14,748 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:40:14,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:40:14,751 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:40:14,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:40:05" (1/3) ... [2025-03-04 02:40:14,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7fd844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:40:14, skipping insertion in model container [2025-03-04 02:40:14,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:40:07" (2/3) ... [2025-03-04 02:40:14,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7fd844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:40:14, skipping insertion in model container [2025-03-04 02:40:14,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:40:14" (3/3) ... [2025-03-04 02:40:14,753 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_from_c_str_harness_negated.i [2025-03-04 02:40:14,763 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:40:14,765 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_from_c_str_harness_negated.i that has 7 procedures, 87 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-04 02:40:14,804 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:40:14,812 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;@4d0f380d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:40:14,812 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:40:14,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 60 states have internal predecessors, (73), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-04 02:40:14,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-04 02:40:14,821 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:40:14,821 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:40:14,822 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:40:14,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:40:14,826 INFO L85 PathProgramCache]: Analyzing trace with hash -208531953, now seen corresponding path program 1 times [2025-03-04 02:40:14,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:40:14,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324407867] [2025-03-04 02:40:14,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:40:14,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:41:23,657 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 02:41:24,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 02:41:24,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:41:24,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:41:26,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:41:26,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:41:26,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324407867] [2025-03-04 02:41:26,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324407867] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:41:26,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:41:26,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 02:41:26,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167183269] [2025-03-04 02:41:26,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:41:26,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 02:41:26,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:41:26,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 02:41:26,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 02:41:26,080 INFO L87 Difference]: Start difference. First operand has 87 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 60 states have internal predecessors, (73), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 02:41:26,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:41:26,303 INFO L93 Difference]: Finished difference Result 167 states and 232 transitions. [2025-03-04 02:41:26,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 02:41:26,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2025-03-04 02:41:26,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:41:26,310 INFO L225 Difference]: With dead ends: 167 [2025-03-04 02:41:26,310 INFO L226 Difference]: Without dead ends: 82 [2025-03-04 02:41:26,312 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 [2025-03-04 02:41:26,314 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 02:41:26,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 416 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 02:41:26,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2025-03-04 02:41:26,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2025-03-04 02:41:26,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 57 states have internal predecessors, (65), 20 states have call successors, (20), 6 states have call predecessors, (20), 7 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2025-03-04 02:41:26,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 104 transitions. [2025-03-04 02:41:26,350 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 104 transitions. Word has length 18 [2025-03-04 02:41:26,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:41:26,351 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 104 transitions. [2025-03-04 02:41:26,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 02:41:26,351 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 104 transitions. [2025-03-04 02:41:26,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-04 02:41:26,353 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:41:26,354 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] [2025-03-04 02:41:26,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 02:41:26,354 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:41:26,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:41:26,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1633082461, now seen corresponding path program 1 times [2025-03-04 02:41:26,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:41:26,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104476209] [2025-03-04 02:41:26,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:41:26,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms