./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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_write_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 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:52:33,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:52:33,627 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 10:52:33,632 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:52:33,634 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:52:33,655 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:52:33,656 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:52:33,656 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:52:33,657 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:52:33,659 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:52:33,660 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:52:33,660 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:52:33,660 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:52:33,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:52:33,661 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:52:33,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:52:33,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:52:33,661 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:52:33,661 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:52:33,661 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:52:33,662 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:52:33,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:52:33,664 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:52:33,664 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:52:33,665 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:52:33,665 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:52:33,665 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:52:33,665 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:52:33,665 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:52:33,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:52:33,666 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:52:33,666 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:52:33,666 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:52:33,666 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:52:33,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:52:33,667 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:52:33,667 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:52:33,667 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:52:33,667 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:52:33,667 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d [2024-11-10 10:52:33,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:52:33,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:52:33,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:52:33,887 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:52:33,887 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:52:33,888 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2024-11-10 10:52:35,084 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:52:35,481 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:52:35,482 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2024-11-10 10:52:35,504 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afee3d332/b3f3deeb0f754f3594e42a51b4838c5f/FLAG050913c30 [2024-11-10 10:52:35,687 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afee3d332/b3f3deeb0f754f3594e42a51b4838c5f [2024-11-10 10:52:35,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:52:35,691 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:52:35,693 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:52:35,693 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:52:35,697 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:52:35,697 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:52:35" (1/1) ... [2024-11-10 10:52:35,698 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a2d1f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:35, skipping insertion in model container [2024-11-10 10:52:35,698 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:52:35" (1/1) ... [2024-11-10 10:52:35,788 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:52:36,037 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_harness.i[4492,4505] [2024-11-10 10:52:36,043 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_harness.i[4552,4565] [2024-11-10 10:52:36,523 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:36,524 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:36,524 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:36,527 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:36,528 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:36,541 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:36,542 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:36,544 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:36,545 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:36,962 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:36,966 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:37,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:52:37,079 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:52:37,095 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_harness.i[4492,4505] [2024-11-10 10:52:37,096 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_harness.i[4552,4565] [2024-11-10 10:52:37,129 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:37,129 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:37,130 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:37,130 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:37,130 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:37,134 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:37,135 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:37,135 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:37,136 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:37,270 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2024-11-10 10:52:37,272 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:37,272 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:52:37,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2024-11-10 10:52:37,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:52:37,474 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:52:37,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:37 WrapperNode [2024-11-10 10:52:37,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:52:37,476 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:52:37,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:52:37,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:52:37,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:37" (1/1) ... [2024-11-10 10:52:37,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:37" (1/1) ... [2024-11-10 10:52:37,621 INFO L138 Inliner]: procedures = 679, calls = 2631, calls flagged for inlining = 61, calls inlined = 8, statements flattened = 873 [2024-11-10 10:52:37,621 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:52:37,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:52:37,622 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:52:37,622 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:52:37,631 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:37" (1/1) ... [2024-11-10 10:52:37,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:37" (1/1) ... [2024-11-10 10:52:37,640 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:37" (1/1) ... [2024-11-10 10:52:37,706 INFO L175 MemorySlicer]: Split 562 memory accesses to 6 slices as follows [2, 257, 10, 238, 6, 49]. 46 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 0, 5, 6, 0, 8]. The 495 writes are split as follows [0, 257, 1, 232, 2, 3]. [2024-11-10 10:52:37,707 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:37" (1/1) ... [2024-11-10 10:52:37,707 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:37" (1/1) ... [2024-11-10 10:52:37,741 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:37" (1/1) ... [2024-11-10 10:52:37,742 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:37" (1/1) ... [2024-11-10 10:52:37,753 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:37" (1/1) ... [2024-11-10 10:52:37,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:37" (1/1) ... [2024-11-10 10:52:37,778 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:52:37,779 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:52:37,779 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:52:37,780 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:52:37,780 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:37" (1/1) ... [2024-11-10 10:52:37,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:52:37,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:52:37,811 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) [2024-11-10 10:52:37,816 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 [2024-11-10 10:52:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-10 10:52:37,850 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-10 10:52:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 10:52:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-10 10:52:37,851 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-10 10:52:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-11-10 10:52:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-11-10 10:52:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-11-10 10:52:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-11-10 10:52:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-11-10 10:52:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-11-10 10:52:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-10 10:52:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-10 10:52:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-10 10:52:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-10 10:52:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-10 10:52:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-10 10:52:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-10 10:52:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-10 10:52:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-10 10:52:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-10 10:52:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-10 10:52:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-10 10:52:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:52:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:52:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 10:52:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 10:52:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 10:52:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 10:52:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-10 10:52:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-10 10:52:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-10 10:52:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-10 10:52:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-10 10:52:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-10 10:52:37,854 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-10 10:52:37,854 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-10 10:52:37,855 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-10 10:52:37,855 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-10 10:52:37,855 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-10 10:52:37,855 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-10 10:52:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 10:52:37,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 10:52:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:52:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:52:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 10:52:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 10:52:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 10:52:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 10:52:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-10 10:52:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-10 10:52:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:52:37,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:52:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-10 10:52:37,856 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-10 10:52:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-10 10:52:37,856 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-10 10:52:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-10 10:52:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-10 10:52:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-10 10:52:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-10 10:52:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-10 10:52:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-10 10:52:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-10 10:52:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-10 10:52:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-10 10:52:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-10 10:52:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-10 10:52:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-10 10:52:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 10:52:37,857 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 10:52:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 10:52:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 10:52:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 10:52:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 10:52:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 10:52:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 10:52:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-10 10:52:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2024-11-10 10:52:37,858 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2024-11-10 10:52:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 10:52:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 10:52:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 10:52:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 10:52:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 10:52:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-10 10:52:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-10 10:52:37,859 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-10 10:52:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-10 10:52:37,859 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-10 10:52:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:52:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:52:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 10:52:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 10:52:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 10:52:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 10:52:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-11-10 10:52:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-11-10 10:52:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-11-10 10:52:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-11-10 10:52:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-11-10 10:52:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-11-10 10:52:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:52:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:52:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 10:52:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 10:52:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 10:52:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 10:52:38,131 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:52:38,134 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:52:38,166 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-10 10:52:38,184 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-10 10:52:38,246 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7377: havoc #t~mem678;havoc #t~mem679;havoc #t~short680;havoc #t~mem681.base, #t~mem681.offset;havoc #t~short682;havoc #t~mem683;havoc #t~mem684;havoc #t~mem685;havoc #t~short686;havoc #t~mem687;havoc #t~mem688.base, #t~mem688.offset;havoc #t~short689;havoc #t~short690;havoc #t~short691;havoc #t~short692; [2024-11-10 10:52:38,262 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-10 10:52:45,333 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2024-11-10 10:52:45,400 INFO L? ?]: Removed 194 outVars from TransFormulas that were not future-live. [2024-11-10 10:52:45,401 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:52:45,415 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:52:45,415 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:52:45,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:52:45 BoogieIcfgContainer [2024-11-10 10:52:45,416 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:52:45,418 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:52:45,418 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:52:45,421 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:52:45,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:52:35" (1/3) ... [2024-11-10 10:52:45,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b0d894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:52:45, skipping insertion in model container [2024-11-10 10:52:45,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:37" (2/3) ... [2024-11-10 10:52:45,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b0d894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:52:45, skipping insertion in model container [2024-11-10 10:52:45,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:52:45" (3/3) ... [2024-11-10 10:52:45,425 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_harness.i [2024-11-10 10:52:45,437 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:52:45,437 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:52:45,479 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:52:45,484 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;@22c97c9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:52:45,484 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 10:52:45,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 87 states have (on average 1.264367816091954) internal successors, (110), 88 states have internal predecessors, (110), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-10 10:52:45,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-10 10:52:45,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:52:45,499 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 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] [2024-11-10 10:52:45,499 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:52:45,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:52:45,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1777889353, now seen corresponding path program 1 times [2024-11-10 10:52:45,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:52:45,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46606899] [2024-11-10 10:52:45,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:52:45,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:53:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:53:57,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:53:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:53:57,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:53:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:53:57,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 10:53:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:53:57,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-10 10:53:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:53:57,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:53:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:53:57,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-10 10:53:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:53:57,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-10 10:53:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:53:57,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-10 10:53:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:53:57,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-10 10:53:57,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:53:57,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-10 10:53:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:53:57,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 10:53:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:53:57,732 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-10 10:53:57,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:53:57,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46606899] [2024-11-10 10:53:57,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46606899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:53:57,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:53:57,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:53:57,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905391680] [2024-11-10 10:53:57,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:53:57,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 10:53:57,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:53:57,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 10:53:57,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:53:57,756 INFO L87 Difference]: Start difference. First operand has 131 states, 87 states have (on average 1.264367816091954) internal successors, (110), 88 states have internal predecessors, (110), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-10 10:54:01,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 10:54:03,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:54:03,840 INFO L93 Difference]: Finished difference Result 258 states and 366 transitions. [2024-11-10 10:54:03,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 10:54:03,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 77 [2024-11-10 10:54:03,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:54:03,848 INFO L225 Difference]: With dead ends: 258 [2024-11-10 10:54:03,848 INFO L226 Difference]: Without dead ends: 125 [2024-11-10 10:54:03,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:54:03,853 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 70 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-10 10:54:03,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 134 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 104 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2024-11-10 10:54:03,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-10 10:54:03,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-10 10:54:03,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 82 states have (on average 1.2560975609756098) internal successors, (103), 83 states have internal predecessors, (103), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-10 10:54:03,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 166 transitions. [2024-11-10 10:54:03,889 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 166 transitions. Word has length 77 [2024-11-10 10:54:03,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:54:03,890 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 166 transitions. [2024-11-10 10:54:03,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-10 10:54:03,890 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 166 transitions. [2024-11-10 10:54:03,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-10 10:54:03,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:54:03,892 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 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] [2024-11-10 10:54:03,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:54:03,893 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:54:03,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:54:03,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1555625652, now seen corresponding path program 1 times [2024-11-10 10:54:03,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:54:03,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971657262] [2024-11-10 10:54:03,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:54:03,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms