./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 97f1929f60deed797b33f238413f59b0edc96867527757b3538e00bc90721005 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:32:49,047 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:32:49,118 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:32:49,125 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:32:49,125 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:32:49,139 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:32:49,139 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:32:49,140 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:32:49,140 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:32:49,140 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:32:49,141 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:32:49,141 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:32:49,141 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:32:49,141 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:32:49,142 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:32:49,142 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:32:49,142 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:32:49,142 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:32:49,142 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:32:49,142 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:32:49,143 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:32:49,143 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:32:49,143 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:32:49,143 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:32:49,143 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:32:49,143 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:32:49,143 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:32:49,143 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:32:49,143 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:32:49,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:32:49,143 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:32:49,143 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:32:49,144 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:32:49,144 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:32:49,144 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:32:49,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:32:49,144 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:32:49,144 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:32:49,144 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:32:49,144 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:32:49,144 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97f1929f60deed797b33f238413f59b0edc96867527757b3538e00bc90721005 [2025-02-08 01:32:49,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:32:49,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:32:49,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:32:49,380 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:32:49,380 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:32:49,381 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.i [2025-02-08 01:32:50,598 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7450c909d/a6b439dbf49d45fab2c6d8991711fcbc/FLAG70f4430f1 [2025-02-08 01:32:51,001 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:32:51,003 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.i [2025-02-08 01:32:51,031 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7450c909d/a6b439dbf49d45fab2c6d8991711fcbc/FLAG70f4430f1 [2025-02-08 01:32:51,044 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7450c909d/a6b439dbf49d45fab2c6d8991711fcbc [2025-02-08 01:32:51,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:32:51,048 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:32:51,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:32:51,050 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:32:51,054 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:32:51,056 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:32:51" (1/1) ... [2025-02-08 01:32:51,058 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63afdc3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:32:51, skipping insertion in model container [2025-02-08 01:32:51,058 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:32:51" (1/1) ... [2025-02-08 01:32:51,137 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:32:51,313 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.i[4489,4502] [2025-02-08 01:32:51,319 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.i[4549,4562] [2025-02-08 01:32:51,745 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:51,746 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:51,746 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:51,747 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:51,747 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:51,760 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:51,763 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:51,764 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:51,766 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:52,123 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:52,127 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:52,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:32:52,237 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:32:52,249 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.i[4489,4502] [2025-02-08 01:32:52,249 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.i[4549,4562] [2025-02-08 01:32:52,290 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:52,290 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:52,291 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:52,291 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:52,292 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:52,299 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:52,299 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:52,300 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:52,301 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:52,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245] [2025-02-08 01:32:52,440 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:52,441 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:32:52,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8731-8742] [2025-02-08 01:32:52,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:32:52,641 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:32:52,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:32:52 WrapperNode [2025-02-08 01:32:52,643 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:32:52,643 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:32:52,644 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:32:52,644 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:32:52,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:32:52" (1/1) ... [2025-02-08 01:32:52,726 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:32:52" (1/1) ... [2025-02-08 01:32:52,786 INFO L138 Inliner]: procedures = 680, calls = 2668, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 902 [2025-02-08 01:32:52,786 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:32:52,787 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:32:52,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:32:52,787 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:32:52,802 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:32:52" (1/1) ... [2025-02-08 01:32:52,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:32:52" (1/1) ... [2025-02-08 01:32:52,809 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:32:52" (1/1) ... [2025-02-08 01:32:52,867 INFO L175 MemorySlicer]: Split 578 memory accesses to 6 slices as follows [2, 257, 6, 238, 66, 9]. 44 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 0, 6, 16, 5]. The 497 writes are split as follows [0, 257, 2, 232, 6, 0]. [2025-02-08 01:32:52,867 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:32:52" (1/1) ... [2025-02-08 01:32:52,867 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:32:52" (1/1) ... [2025-02-08 01:32:52,905 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:32:52" (1/1) ... [2025-02-08 01:32:52,906 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:32:52" (1/1) ... [2025-02-08 01:32:52,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:32:52" (1/1) ... [2025-02-08 01:32:52,912 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:32:52" (1/1) ... [2025-02-08 01:32:52,918 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:32:52,918 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:32:52,919 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:32:52,919 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:32:52,919 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:32:52" (1/1) ... [2025-02-08 01:32:52,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:32:52,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:32:52,944 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:32:52,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:32:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-02-08 01:32:52,963 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-02-08 01:32:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:32:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:32:52,964 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:32:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:32:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:32:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:32:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:32:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:32:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:32:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:32:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:32:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:32:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:32:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:32:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:32:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:32:52,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:32:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:32:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:32:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-02-08 01:32:52,966 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-02-08 01:32:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:32:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:32:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:32:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:32:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:32:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:32:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2025-02-08 01:32:52,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2025-02-08 01:32:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:32:52,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:32:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:32:52,967 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:32:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-08 01:32:52,968 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-08 01:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:32:52,968 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2025-02-08 01:32:52,970 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:32:52,970 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-08 01:32:52,970 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2025-02-08 01:32:52,970 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2025-02-08 01:32:52,970 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:32:53,257 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:32:53,260 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:32:53,310 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-02-08 01:32:53,350 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1;#t~ret602#1 := nondet_size_t_#res#1;havoc nondet_size_t_#t~nondet6#1;assume { :end_inline_nondet_size_t } true;call write~int#2(#t~ret602#1, ~storage#1.base, ~storage#1.offset, 8);havoc #t~ret602#1;call #t~mem603#1 := read~int#2(~storage#1.base, ~storage#1.offset, 8); [2025-02-08 01:32:53,350 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7125-1: SUMMARY for call assume_abort_if_not((if 0 == (if #t~mem603#1 % 18446744073709551616 < ~size#1 % 18446744073709551616 then 1 else 0) then 0 else 1)); srcloc: null [2025-02-08 01:32:53,351 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7125: havoc #t~mem603#1;call #t~mem604#1 := read~int#2(~storage#1.base, ~storage#1.offset, 8);call #t~mem605#1 := read~int#5(~array#1.base, ~array#1.offset + (if #t~mem604#1 % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then #t~mem604#1 % 18446744073709551616 % 18446744073709551616 else #t~mem604#1 % 18446744073709551616 % 18446744073709551616 - 18446744073709551616), 1);call write~int#2(#t~mem605#1, ~storage#1.base, 8 + ~storage#1.offset, 1);havoc #t~mem604#1;havoc #t~mem605#1; [2025-02-08 01:32:53,372 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-08 01:32:53,397 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7695: havoc #t~nondet818; [2025-02-08 01:32:53,439 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7353: havoc #t~mem679;havoc #t~mem680;havoc #t~short681;havoc #t~mem682.base, #t~mem682.offset;havoc #t~short683;havoc #t~mem684;havoc #t~mem685;havoc #t~mem686;havoc #t~short687;havoc #t~mem688;havoc #t~mem689.base, #t~mem689.offset;havoc #t~short690;havoc #t~short691;havoc #t~short692;havoc #t~short693; [2025-02-08 01:32:53,452 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:32:53,456 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6588: havoc #t~mem477; [2025-02-08 01:33:00,278 INFO L? ?]: Removed 93 outVars from TransFormulas that were not future-live. [2025-02-08 01:33:00,279 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:33:00,288 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:33:00,289 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:33:00,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:33:00 BoogieIcfgContainer [2025-02-08 01:33:00,289 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:33:00,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:33:00,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:33:00,294 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:33:00,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:32:51" (1/3) ... [2025-02-08 01:33:00,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b3a532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:33:00, skipping insertion in model container [2025-02-08 01:33:00,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:32:52" (2/3) ... [2025-02-08 01:33:00,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b3a532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:33:00, skipping insertion in model container [2025-02-08 01:33:00,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:33:00" (3/3) ... [2025-02-08 01:33:00,296 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_harness_negated.i [2025-02-08 01:33:00,307 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:33:00,308 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_eq_harness_negated.i that has 14 procedures, 147 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 01:33:00,341 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:33:00,348 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;@731da0bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:33:00,348 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:33:00,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 86 states have (on average 1.244186046511628) internal successors, (107), 88 states have internal predecessors, (107), 45 states have call successors, (45), 13 states have call predecessors, (45), 13 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-02-08 01:33:00,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-02-08 01:33:00,356 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:33:00,357 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2025-02-08 01:33:00,357 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:33:00,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:33:00,360 INFO L85 PathProgramCache]: Analyzing trace with hash -222074712, now seen corresponding path program 1 times [2025-02-08 01:33:00,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:33:00,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604219073] [2025-02-08 01:33:00,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:33:00,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:34:08,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-02-08 01:34:08,665 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-02-08 01:34:08,666 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:34:08,666 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:34:10,952 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-02-08 01:34:10,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:34:10,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604219073] [2025-02-08 01:34:10,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604219073] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:34:10,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536056285] [2025-02-08 01:34:10,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:34:10,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:34:10,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:34:10,956 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:34:10,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process