./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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_eq_ignore_case_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 378441a9bcec2a4eb6d1dae870bed526bd742843c0fa114d0ed9d4e2e4a551a9 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 03:02:01,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 03:02:01,571 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 03:02:01,575 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 03:02:01,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 03:02:01,612 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 03:02:01,613 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 03:02:01,613 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 03:02:01,614 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 03:02:01,615 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 03:02:01,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 03:02:01,616 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 03:02:01,616 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 03:02:01,617 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 03:02:01,618 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 03:02:01,619 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 03:02:01,619 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 03:02:01,619 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 03:02:01,620 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 03:02:01,620 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 03:02:01,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 03:02:01,624 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 03:02:01,624 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 03:02:01,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 03:02:01,625 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 03:02:01,625 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 03:02:01,625 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 03:02:01,626 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 03:02:01,626 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 03:02:01,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 03:02:01,627 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 03:02:01,627 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 03:02:01,627 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 03:02:01,628 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 03:02:01,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 03:02:01,628 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 03:02:01,629 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 03:02:01,629 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 03:02:01,629 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 03:02:01,629 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 378441a9bcec2a4eb6d1dae870bed526bd742843c0fa114d0ed9d4e2e4a551a9 [2024-11-09 03:02:01,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 03:02:01,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 03:02:01,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 03:02:01,941 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 03:02:01,941 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 03:02:01,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i [2024-11-09 03:02:03,397 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 03:02:03,911 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 03:02:03,913 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i [2024-11-09 03:02:03,961 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28b26b9c4/aa3dc31c795548149ded11f04d1f7969/FLAG6e6be595c [2024-11-09 03:02:03,977 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28b26b9c4/aa3dc31c795548149ded11f04d1f7969 [2024-11-09 03:02:03,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 03:02:03,981 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 03:02:03,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 03:02:03,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 03:02:03,990 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 03:02:03,991 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:02:03" (1/1) ... [2024-11-09 03:02:03,991 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a36457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:03, skipping insertion in model container [2024-11-09 03:02:03,992 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:02:03" (1/1) ... [2024-11-09 03:02:04,113 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 03:02:04,397 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_eq_ignore_case_harness.i[4501,4514] [2024-11-09 03:02:04,405 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_eq_ignore_case_harness.i[4561,4574] [2024-11-09 03:02:05,005 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,006 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,006 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,007 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,008 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,031 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,032 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,034 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,034 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,601 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,601 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 03:02:05,805 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 03:02:05,825 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_eq_ignore_case_harness.i[4501,4514] [2024-11-09 03:02:05,826 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_eq_ignore_case_harness.i[4561,4574] [2024-11-09 03:02:05,864 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,865 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,865 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,866 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,866 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,871 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,872 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,872 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,873 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:05,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2024-11-09 03:02:06,000 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:06,001 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:02:06,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2024-11-09 03:02:06,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 03:02:06,291 INFO L204 MainTranslator]: Completed translation [2024-11-09 03:02:06,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06 WrapperNode [2024-11-09 03:02:06,291 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 03:02:06,292 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 03:02:06,292 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 03:02:06,293 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 03:02:06,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 03:02:06,411 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 03:02:06,503 INFO L138 Inliner]: procedures = 680, calls = 2663, calls flagged for inlining = 59, calls inlined = 5, statements flattened = 876 [2024-11-09 03:02:06,504 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 03:02:06,504 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 03:02:06,504 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 03:02:06,504 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 03:02:06,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 03:02:06,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 03:02:06,528 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 03:02:06,615 INFO L175 MemorySlicer]: Split 576 memory accesses to 6 slices as follows [2, 62, 259, 238, 9, 6]. 45 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 16, 0, 6, 5, 0]. The 497 writes are split as follows [0, 6, 257, 232, 0, 2]. [2024-11-09 03:02:06,615 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 03:02:06,616 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 03:02:06,661 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 03:02:06,666 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 03:02:06,673 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 03:02:06,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 03:02:06,702 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 03:02:06,703 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 03:02:06,703 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 03:02:06,703 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 03:02:06,706 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 03:02:06,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 03:02:06,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 03:02:06,749 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) [2024-11-09 03:02:06,752 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 [2024-11-09 03:02:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-09 03:02:06,840 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-09 03:02:06,840 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_ignore_case [2024-11-09 03:02:06,840 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_ignore_case [2024-11-09 03:02:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 03:02:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 03:02:06,842 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 03:02:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 03:02:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 03:02:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 03:02:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 03:02:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 03:02:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-09 03:02:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 03:02:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 03:02:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 03:02:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 03:02:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 03:02:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 03:02:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 03:02:06,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 03:02:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 03:02:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 03:02:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-09 03:02:06,845 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-09 03:02:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 03:02:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 03:02:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 03:02:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 03:02:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 03:02:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 03:02:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2024-11-09 03:02:06,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2024-11-09 03:02:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 03:02:06,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 03:02:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 03:02:06,847 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 03:02:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-09 03:02:06,847 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-09 03:02:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 03:02:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 03:02:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 03:02:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 03:02:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 03:02:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-09 03:02:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 03:02:06,848 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 03:02:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 03:02:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 03:02:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 03:02:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 03:02:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 03:02:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 03:02:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 03:02:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 03:02:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 03:02:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 03:02:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 03:02:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 03:02:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-09 03:02:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-09 03:02:06,849 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-09 03:02:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2024-11-09 03:02:06,850 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2024-11-09 03:02:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 03:02:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 03:02:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 03:02:06,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 03:02:06,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 03:02:06,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 03:02:06,855 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2024-11-09 03:02:06,855 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2024-11-09 03:02:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 03:02:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 03:02:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 03:02:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 03:02:06,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 03:02:06,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 03:02:07,152 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 03:02:07,154 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 03:02:15,573 INFO L? ?]: Removed 80 outVars from TransFormulas that were not future-live. [2024-11-09 03:02:15,573 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 03:02:15,589 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 03:02:15,589 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 03:02:15,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:02:15 BoogieIcfgContainer [2024-11-09 03:02:15,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 03:02:15,593 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 03:02:15,593 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 03:02:15,596 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 03:02:15,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:02:03" (1/3) ... [2024-11-09 03:02:15,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d58984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:02:15, skipping insertion in model container [2024-11-09 03:02:15,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (2/3) ... [2024-11-09 03:02:15,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d58984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:02:15, skipping insertion in model container [2024-11-09 03:02:15,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:02:15" (3/3) ... [2024-11-09 03:02:15,600 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_ignore_case_harness.i [2024-11-09 03:02:15,617 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 03:02:15,617 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 03:02:15,689 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 03:02:15,695 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;@3ef13b24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 03:02:15,697 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 03:02:15,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 87 states have (on average 1.2413793103448276) internal successors, (108), 88 states have internal predecessors, (108), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 03:02:15,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-09 03:02:15,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 03:02:15,719 INFO L215 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, 1] [2024-11-09 03:02:15,720 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 03:02:15,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 03:02:15,726 INFO L85 PathProgramCache]: Analyzing trace with hash -780859386, now seen corresponding path program 1 times [2024-11-09 03:02:15,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 03:02:15,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391772895] [2024-11-09 03:02:15,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:02:15,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 03:03:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:33,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 03:03:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:33,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 03:03:33,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:34,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 03:03:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:34,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 03:03:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:34,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 03:03:34,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:34,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 03:03:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:34,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 03:03:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:34,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-09 03:03:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:34,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-09 03:03:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:34,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-09 03:03:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:34,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-09 03:03:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:34,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-09 03:03:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:34,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 03:03:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:34,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 03:03:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:34,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-09 03:03:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:34,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 03:03:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:34,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 03:03:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:34,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 03:03:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:34,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-09 03:03:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:03:34,702 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-09 03:03:34,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 03:03:34,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391772895] [2024-11-09 03:03:34,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391772895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 03:03:34,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 03:03:34,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 03:03:34,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389892093] [2024-11-09 03:03:34,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 03:03:34,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 03:03:34,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 03:03:34,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 03:03:34,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 03:03:34,743 INFO L87 Difference]: Start difference. First operand has 143 states, 87 states have (on average 1.2413793103448276) internal successors, (108), 88 states have internal predecessors, (108), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-09 03:03:38,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []