./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed 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_write_u8_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 fbd83f7e524270f26b355be3b6fdf116e3fc11da746439b12c865fa2fec80a91 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 17:55:57,768 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:55:57,835 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 17:55:57,840 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:55:57,842 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:55:57,864 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:55:57,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:55:57,865 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:55:57,865 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:55:57,865 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:55:57,865 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:55:57,865 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:55:57,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:55:57,866 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:55:57,866 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:55:57,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:55:57,866 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:55:57,866 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:55:57,866 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:55:57,866 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:55:57,866 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:55:57,866 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:55:57,866 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:55:57,866 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:55:57,866 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:55:57,867 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:55:57,867 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:55:57,867 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:55:57,867 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:55:57,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:55:57,867 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:55:57,867 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:55:57,867 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:55:57,867 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:55:57,867 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:55:57,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:55:57,867 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:55:57,867 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:55:57,868 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:55:57,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:55:57,868 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 -> fbd83f7e524270f26b355be3b6fdf116e3fc11da746439b12c865fa2fec80a91 [2025-03-08 17:55:58,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:55:58,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:55:58,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:55:58,121 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:55:58,121 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:55:58,122 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness_negated.i [2025-03-08 17:55:59,239 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b62317a7/0f30d7f6404b4c048368fdb0cc338dc7/FLAG56dd25240 [2025-03-08 17:55:59,747 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:55:59,748 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness_negated.i [2025-03-08 17:55:59,784 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b62317a7/0f30d7f6404b4c048368fdb0cc338dc7/FLAG56dd25240 [2025-03-08 17:55:59,807 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b62317a7/0f30d7f6404b4c048368fdb0cc338dc7 [2025-03-08 17:55:59,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:55:59,810 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:55:59,811 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:55:59,811 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:55:59,816 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:55:59,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:55:59" (1/1) ... [2025-03-08 17:55:59,817 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d0f41f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:59, skipping insertion in model container [2025-03-08 17:55:59,817 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:55:59" (1/1) ... [2025-03-08 17:55:59,883 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:56:00,071 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_write_u8_harness_negated.i[4495,4508] [2025-03-08 17:56:00,077 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_write_u8_harness_negated.i[4555,4568] [2025-03-08 17:56:00,521 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:00,521 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:00,522 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:00,522 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:00,523 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:00,537 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:00,537 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:00,539 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:00,540 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:00,928 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:00,929 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:00,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:56:01,035 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:56:01,049 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_write_u8_harness_negated.i[4495,4508] [2025-03-08 17:56:01,050 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_write_u8_harness_negated.i[4555,4568] [2025-03-08 17:56:01,085 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:01,085 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:01,086 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:01,086 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:01,086 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:01,094 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:01,096 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:01,097 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:01,097 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:01,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8259] [2025-03-08 17:56:01,233 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:01,234 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:01,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8745-8756] [2025-03-08 17:56:01,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:56:01,386 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:56:01,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:01 WrapperNode [2025-03-08 17:56:01,387 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:56:01,388 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:56:01,388 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:56:01,388 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:56:01,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:01" (1/1) ... [2025-03-08 17:56:01,444 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:01" (1/1) ... [2025-03-08 17:56:01,509 INFO L138 Inliner]: procedures = 680, calls = 2618, calls flagged for inlining = 63, calls inlined = 10, statements flattened = 871 [2025-03-08 17:56:01,510 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:56:01,510 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:56:01,510 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:56:01,510 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:56:01,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:01" (1/1) ... [2025-03-08 17:56:01,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:01" (1/1) ... [2025-03-08 17:56:01,523 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:01" (1/1) ... [2025-03-08 17:56:01,584 INFO L175 MemorySlicer]: Split 560 memory accesses to 7 slices as follows [2, 47, 257, 238, 6, 2, 8]. 46 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 8, 0, 6, 0, 0, 5]. The 496 writes are split as follows [0, 3, 257, 232, 2, 1, 1]. [2025-03-08 17:56:01,584 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:01" (1/1) ... [2025-03-08 17:56:01,584 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:01" (1/1) ... [2025-03-08 17:56:01,612 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:01" (1/1) ... [2025-03-08 17:56:01,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:01" (1/1) ... [2025-03-08 17:56:01,621 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:01" (1/1) ... [2025-03-08 17:56:01,624 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:01" (1/1) ... [2025-03-08 17:56:01,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:56:01,634 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:56:01,634 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:56:01,634 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:56:01,635 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:01" (1/1) ... [2025-03-08 17:56:01,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:56:01,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:56:01,661 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) [2025-03-08 17:56:01,663 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 [2025-03-08 17:56:01,681 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-08 17:56:01,682 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-08 17:56:01,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 17:56:01,682 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 17:56:01,682 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 17:56:01,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 17:56:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 17:56:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 17:56:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 17:56:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 17:56:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 17:56:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-08 17:56:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 17:56:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 17:56:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 17:56:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 17:56:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 17:56:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 17:56:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 17:56:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 17:56:01,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 17:56:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 17:56:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:56:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 17:56:01,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 17:56:01,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 17:56:01,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 17:56:01,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 17:56:01,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 17:56:01,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-03-08 17:56:01,686 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:56:01,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 17:56:01,686 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-08 17:56:01,686 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 17:56:01,686 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-03-08 17:56:01,686 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2025-03-08 17:56:01,686 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-08 17:56:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 17:56:01,686 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 17:56:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 17:56:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 17:56:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 17:56:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 17:56:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 17:56:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 17:56:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 17:56:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:56:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:56:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 17:56:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 17:56:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 17:56:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 17:56:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 17:56:01,927 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:56:01,928 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:56:01,951 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-08 17:56:02,058 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7367: havoc #t~mem682;havoc #t~mem683;havoc #t~short684;havoc #t~mem685.base, #t~mem685.offset;havoc #t~short686;havoc #t~mem687;havoc #t~mem688;havoc #t~mem689;havoc #t~short690;havoc #t~mem691;havoc #t~mem692.base, #t~mem692.offset;havoc #t~short693;havoc #t~short694;havoc #t~short695;havoc #t~short696; [2025-03-08 17:56:02,072 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 17:56:02,082 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7310: havoc #t~ret657.base, #t~ret657.offset; [2025-03-08 17:56:08,887 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8545: havoc aws_byte_buf_write_u8_#t~ret1198#1;call ULTIMATE.dealloc(aws_byte_buf_write_u8_~#c#1.base, aws_byte_buf_write_u8_~#c#1.offset);havoc aws_byte_buf_write_u8_~#c#1.base, aws_byte_buf_write_u8_~#c#1.offset; [2025-03-08 17:56:08,887 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6588: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2025-03-08 17:56:08,887 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc nondet_uint8_t_#t~nondet10#1; [2025-03-08 17:56:08,888 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-08 17:56:08,925 INFO L? ?]: Removed 102 outVars from TransFormulas that were not future-live. [2025-03-08 17:56:08,925 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:56:08,940 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:56:08,941 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:56:08,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:56:08 BoogieIcfgContainer [2025-03-08 17:56:08,942 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:56:08,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:56:08,944 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:56:08,947 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:56:08,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:55:59" (1/3) ... [2025-03-08 17:56:08,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365d1fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:56:08, skipping insertion in model container [2025-03-08 17:56:08,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:01" (2/3) ... [2025-03-08 17:56:08,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365d1fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:56:08, skipping insertion in model container [2025-03-08 17:56:08,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:56:08" (3/3) ... [2025-03-08 17:56:08,949 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_u8_harness_negated.i [2025-03-08 17:56:08,959 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:56:08,961 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_write_u8_harness_negated.i that has 11 procedures, 130 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 17:56:09,001 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:56:09,009 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;@3e25c684, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:56:09,010 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 17:56:09,013 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 84 states have (on average 1.2261904761904763) internal successors, (103), 85 states have internal predecessors, (103), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2025-03-08 17:56:09,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-03-08 17:56:09,022 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:56:09,022 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 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] [2025-03-08 17:56:09,023 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:56:09,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:56:09,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1124650777, now seen corresponding path program 1 times [2025-03-08 17:56:09,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:56:09,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662959904] [2025-03-08 17:56:09,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:56:09,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:57:12,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-08 17:57:12,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-08 17:57:12,960 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:57:12,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:57:13,775 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2025-03-08 17:57:13,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:57:13,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662959904] [2025-03-08 17:57:13,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662959904] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:57:13,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936670149] [2025-03-08 17:57:13,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:57:13,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:57:13,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:57:13,781 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) [2025-03-08 17:57:13,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process