./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/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-wip.dd.update-z3-fca748b-m [2024-11-20 10:01:24,207 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 10:01:24,278 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 10:01:24,282 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 10:01:24,285 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 10:01:24,309 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 10:01:24,310 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 10:01:24,310 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 10:01:24,310 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 10:01:24,311 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 10:01:24,311 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 10:01:24,312 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 10:01:24,312 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 10:01:24,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 10:01:24,313 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 10:01:24,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 10:01:24,314 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 10:01:24,314 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 10:01:24,314 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 10:01:24,314 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 10:01:24,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 10:01:24,319 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 10:01:24,319 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 10:01:24,319 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 10:01:24,319 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 10:01:24,319 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 10:01:24,320 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 10:01:24,320 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 10:01:24,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 10:01:24,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 10:01:24,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 10:01:24,321 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 10:01:24,321 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 10:01:24,321 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 10:01:24,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 10:01:24,322 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 10:01:24,322 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 10:01:24,322 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 10:01:24,322 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 10:01:24,322 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d [2024-11-20 10:01:24,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 10:01:24,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 10:01:24,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 10:01:24,533 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 10:01:24,534 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 10:01:24,534 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2024-11-20 10:01:25,760 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 10:01:26,102 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 10:01:26,102 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2024-11-20 10:01:26,125 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e174a71a/2174d901891145a9910c5a1be1a93f2b/FLAG903dddc44 [2024-11-20 10:01:26,311 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e174a71a/2174d901891145a9910c5a1be1a93f2b [2024-11-20 10:01:26,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 10:01:26,314 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 10:01:26,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 10:01:26,315 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 10:01:26,319 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 10:01:26,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:01:26" (1/1) ... [2024-11-20 10:01:26,320 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53793867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:26, skipping insertion in model container [2024-11-20 10:01:26,320 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:01:26" (1/1) ... [2024-11-20 10:01:26,437 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 10:01:26,640 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] [2024-11-20 10:01:26,646 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] [2024-11-20 10:01:27,129 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,130 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,130 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,131 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,132 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,142 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,145 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,147 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,147 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,557 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,558 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 10:01:27,711 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 10:01:27,727 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] [2024-11-20 10:01:27,728 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] [2024-11-20 10:01:27,761 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,762 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,763 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,763 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,763 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,772 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,772 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,773 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,773 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,864 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2024-11-20 10:01:27,866 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,867 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:01:27,877 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2024-11-20 10:01:27,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 10:01:28,066 INFO L204 MainTranslator]: Completed translation [2024-11-20 10:01:28,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:28 WrapperNode [2024-11-20 10:01:28,066 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 10:01:28,067 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 10:01:28,067 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 10:01:28,067 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 10:01:28,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:28" (1/1) ... [2024-11-20 10:01:28,147 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:28" (1/1) ... [2024-11-20 10:01:28,215 INFO L138 Inliner]: procedures = 679, calls = 2631, calls flagged for inlining = 61, calls inlined = 8, statements flattened = 873 [2024-11-20 10:01:28,216 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 10:01:28,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 10:01:28,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 10:01:28,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 10:01:28,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:28" (1/1) ... [2024-11-20 10:01:28,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:28" (1/1) ... [2024-11-20 10:01:28,236 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:28" (1/1) ... [2024-11-20 10:01:28,295 INFO L175 MemorySlicer]: Split 562 memory accesses to 6 slices as follows [2, 257, 238, 6, 10, 49]. 46 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 0, 6, 0, 5, 8]. The 495 writes are split as follows [0, 257, 232, 2, 1, 3]. [2024-11-20 10:01:28,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:28" (1/1) ... [2024-11-20 10:01:28,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:28" (1/1) ... [2024-11-20 10:01:28,325 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:28" (1/1) ... [2024-11-20 10:01:28,329 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:28" (1/1) ... [2024-11-20 10:01:28,343 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:28" (1/1) ... [2024-11-20 10:01:28,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:28" (1/1) ... [2024-11-20 10:01:28,365 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 10:01:28,367 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 10:01:28,367 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 10:01:28,367 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 10:01:28,368 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:28" (1/1) ... [2024-11-20 10:01:28,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 10:01:28,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 10:01:28,397 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) [2024-11-20 10:01:28,399 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 [2024-11-20 10:01:28,436 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-20 10:01:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-20 10:01:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 10:01:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-20 10:01:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-20 10:01:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-11-20 10:01:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-11-20 10:01:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-11-20 10:01:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-11-20 10:01:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-11-20 10:01:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-11-20 10:01:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-20 10:01:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-20 10:01:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-20 10:01:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-20 10:01:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-20 10:01:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-20 10:01:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-20 10:01:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-20 10:01:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-20 10:01:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-20 10:01:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-20 10:01:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-20 10:01:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 10:01:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 10:01:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 10:01:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 10:01:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 10:01:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 10:01:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-20 10:01:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-20 10:01:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-20 10:01:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-20 10:01:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-20 10:01:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-20 10:01:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-20 10:01:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-20 10:01:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-20 10:01:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-20 10:01:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-20 10:01:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-20 10:01:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-20 10:01:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-20 10:01:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 10:01:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 10:01:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 10:01:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 10:01:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 10:01:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 10:01:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-20 10:01:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-20 10:01:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 10:01:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 10:01:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-20 10:01:28,468 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-20 10:01:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-20 10:01:28,468 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-20 10:01:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-20 10:01:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-20 10:01:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-20 10:01:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-20 10:01:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-20 10:01:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-20 10:01:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-20 10:01:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-20 10:01:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-20 10:01:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-20 10:01:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-20 10:01:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-20 10:01:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 10:01:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 10:01:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 10:01:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 10:01:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 10:01:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 10:01:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 10:01:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-20 10:01:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-20 10:01:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2024-11-20 10:01:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2024-11-20 10:01:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 10:01:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 10:01:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 10:01:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-20 10:01:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-20 10:01:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-20 10:01:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-20 10:01:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-20 10:01:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-20 10:01:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-20 10:01:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 10:01:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 10:01:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 10:01:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 10:01:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 10:01:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 10:01:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-11-20 10:01:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-11-20 10:01:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-11-20 10:01:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-11-20 10:01:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-11-20 10:01:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-11-20 10:01:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 10:01:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 10:01:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 10:01:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 10:01:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 10:01:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 10:01:28,748 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 10:01:28,751 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 10:01:36,164 INFO L? ?]: Removed 194 outVars from TransFormulas that were not future-live. [2024-11-20 10:01:36,165 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 10:01:36,181 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 10:01:36,181 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 10:01:36,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:01:36 BoogieIcfgContainer [2024-11-20 10:01:36,182 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 10:01:36,184 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 10:01:36,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 10:01:36,187 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 10:01:36,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:01:26" (1/3) ... [2024-11-20 10:01:36,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dff8fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:01:36, skipping insertion in model container [2024-11-20 10:01:36,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:28" (2/3) ... [2024-11-20 10:01:36,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dff8fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:01:36, skipping insertion in model container [2024-11-20 10:01:36,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:01:36" (3/3) ... [2024-11-20 10:01:36,190 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_harness.i [2024-11-20 10:01:36,202 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 10:01:36,202 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 10:01:36,257 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 10:01:36,261 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;@545b7df5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 10:01:36,261 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 10:01:36,265 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 85 states have (on average 1.2705882352941176) internal successors, (108), 86 states have internal predecessors, (108), 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) [2024-11-20 10:01:36,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-20 10:01:36,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 10:01:36,273 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] [2024-11-20 10:01:36,273 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 10:01:36,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 10:01:36,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1745725323, now seen corresponding path program 1 times [2024-11-20 10:01:36,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 10:01:36,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008526608] [2024-11-20 10:01:36,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 10:01:36,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 10:02:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:54,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 10:02:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:54,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 10:02:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:54,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 10:02:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:54,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-20 10:02:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:54,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 10:02:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:54,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-20 10:02:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:54,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 10:02:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:54,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 10:02:54,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:54,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 10:02:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:54,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 10:02:54,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:54,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 10:02:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:54,960 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 10:02:54,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 10:02:54,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008526608] [2024-11-20 10:02:54,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008526608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 10:02:54,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 10:02:54,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 10:02:54,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641920613] [2024-11-20 10:02:54,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 10:02:54,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 10:02:54,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 10:02:55,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 10:02:55,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 10:02:55,006 INFO L87 Difference]: Start difference. First operand has 129 states, 85 states have (on average 1.2705882352941176) internal successors, (108), 86 states have internal predecessors, (108), 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) [2024-11-20 10:02:59,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 10:03:01,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 10:03:01,026 INFO L93 Difference]: Finished difference Result 255 states and 363 transitions. [2024-11-20 10:03:01,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 10:03:01,029 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 [2024-11-20 10:03:01,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 10:03:01,036 INFO L225 Difference]: With dead ends: 255 [2024-11-20 10:03:01,036 INFO L226 Difference]: Without dead ends: 124 [2024-11-20 10:03:01,038 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 [2024-11-20 10:03:01,041 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 69 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-20 10:03:01,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 134 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 103 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2024-11-20 10:03:01,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-20 10:03:01,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-11-20 10:03:01,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 81 states have (on average 1.2592592592592593) internal successors, (102), 82 states have internal predecessors, (102), 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) [2024-11-20 10:03:01,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 165 transitions. [2024-11-20 10:03:01,078 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 165 transitions. Word has length 77 [2024-11-20 10:03:01,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 10:03:01,078 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 165 transitions. [2024-11-20 10:03:01,079 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) [2024-11-20 10:03:01,079 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 165 transitions. [2024-11-20 10:03:01,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-20 10:03:01,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 10:03:01,081 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] [2024-11-20 10:03:01,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 10:03:01,082 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 10:03:01,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 10:03:01,083 INFO L85 PathProgramCache]: Analyzing trace with hash 626337391, now seen corresponding path program 1 times [2024-11-20 10:03:01,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 10:03:01,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330133162] [2024-11-20 10:03:01,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 10:03:01,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms