./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 49bf9fd75d56d44e7e1e54aefea9fad1d2b78cb24b15e9eb5cce5de020ddf3d7 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 03:00:22,840 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 03:00:22,933 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 03:00:22,942 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 03:00:22,943 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 03:00:22,965 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 03:00:22,965 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 03:00:22,966 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 03:00:22,967 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 03:00:22,967 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 03:00:22,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 03:00:22,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 03:00:22,968 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 03:00:22,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 03:00:22,969 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 03:00:22,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 03:00:22,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 03:00:22,970 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 03:00:22,971 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 03:00:22,971 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 03:00:22,971 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 03:00:22,972 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 03:00:22,973 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 03:00:22,973 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 03:00:22,974 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 03:00:22,974 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 03:00:22,974 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 03:00:22,975 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 03:00:22,975 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 03:00:22,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 03:00:22,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 03:00:22,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 03:00:22,977 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 03:00:22,977 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 03:00:22,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 03:00:22,978 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 03:00:22,978 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 03:00:22,978 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 03:00:22,979 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 03:00:22,979 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49bf9fd75d56d44e7e1e54aefea9fad1d2b78cb24b15e9eb5cce5de020ddf3d7 [2024-11-09 03:00:23,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 03:00:23,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 03:00:23,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 03:00:23,309 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 03:00:23,310 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 03:00:23,312 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i [2024-11-09 03:00:24,876 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 03:00:25,386 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 03:00:25,387 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i [2024-11-09 03:00:25,437 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e8975dfb/7ec6b0647042467499a23fd14cee3b3c/FLAG84a8535f9 [2024-11-09 03:00:25,453 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e8975dfb/7ec6b0647042467499a23fd14cee3b3c [2024-11-09 03:00:25,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 03:00:25,458 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 03:00:25,460 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 03:00:25,464 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 03:00:25,470 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 03:00:25,471 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:00:25" (1/1) ... [2024-11-09 03:00:25,472 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321de9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:00:25, skipping insertion in model container [2024-11-09 03:00:25,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:00:25" (1/1) ... [2024-11-09 03:00:25,597 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 03:00:25,996 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_append_with_lookup_harness_negated.i[4505,4518] [2024-11-09 03:00:26,010 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_append_with_lookup_harness_negated.i[4565,4578] [2024-11-09 03:00:27,295 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:27,296 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:27,297 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:27,300 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:27,301 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:27,327 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:27,331 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:27,333 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:27,334 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:28,031 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:28,032 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:28,145 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:28,145 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:28,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 03:00:28,262 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 03:00:28,277 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_append_with_lookup_harness_negated.i[4505,4518] [2024-11-09 03:00:28,278 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_append_with_lookup_harness_negated.i[4565,4578] [2024-11-09 03:00:28,313 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:28,314 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:28,314 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:28,315 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:28,315 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:28,320 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:28,321 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:28,321 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:28,322 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:28,402 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:28,405 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:28,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8265] [2024-11-09 03:00:28,456 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:28,456 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:00:28,470 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8751-8762] [2024-11-09 03:00:28,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 03:00:28,744 INFO L204 MainTranslator]: Completed translation [2024-11-09 03:00:28,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:00:28 WrapperNode [2024-11-09 03:00:28,745 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 03:00:28,747 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 03:00:28,747 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 03:00:28,747 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 03:00:28,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:00:28" (1/1) ... [2024-11-09 03:00:28,884 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:00:28" (1/1) ... [2024-11-09 03:00:28,961 INFO L138 Inliner]: procedures = 680, calls = 2646, calls flagged for inlining = 63, calls inlined = 10, statements flattened = 972 [2024-11-09 03:00:28,962 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 03:00:28,963 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 03:00:28,963 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 03:00:28,963 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 03:00:28,975 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:00:28" (1/1) ... [2024-11-09 03:00:28,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:00:28" (1/1) ... [2024-11-09 03:00:28,984 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:00:28" (1/1) ... [2024-11-09 03:00:29,078 INFO L175 MemorySlicer]: Split 572 memory accesses to 9 slices as follows [32, 257, 2, 238, 1, 20, 4, 9, 9]. 45 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [4, 0, 2, 6, 0, 2, 2, 4, 5]. The 494 writes are split as follows [3, 257, 0, 232, 0, 1, 0, 0, 1]. [2024-11-09 03:00:29,078 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:00:28" (1/1) ... [2024-11-09 03:00:29,078 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:00:28" (1/1) ... [2024-11-09 03:00:29,127 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:00:28" (1/1) ... [2024-11-09 03:00:29,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:00:28" (1/1) ... [2024-11-09 03:00:29,150 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:00:28" (1/1) ... [2024-11-09 03:00:29,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:00:28" (1/1) ... [2024-11-09 03:00:29,185 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 03:00:29,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 03:00:29,188 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 03:00:29,188 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 03:00:29,190 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:00:28" (1/1) ... [2024-11-09 03:00:29,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 03:00:29,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 03:00:29,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 03:00:29,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 03:00:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-09 03:00:29,287 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-09 03:00:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-09 03:00:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-09 03:00:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 03:00:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 03:00:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 03:00:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 03:00:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 03:00:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 03:00:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 03:00:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 03:00:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-09 03:00:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-09 03:00:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-09 03:00:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-09 03:00:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 03:00:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 03:00:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 03:00:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 03:00:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 03:00:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 03:00:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-09 03:00:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-09 03:00:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-09 03:00:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-09 03:00:29,291 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-09 03:00:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 03:00:29,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 03:00:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 03:00:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 03:00:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 03:00:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 03:00:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 03:00:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 03:00:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 03:00:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 03:00:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-09 03:00:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-09 03:00:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-09 03:00:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 03:00:29,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 03:00:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 03:00:29,294 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 03:00:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 03:00:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 03:00:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 03:00:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 03:00:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 03:00:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-09 03:00:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-09 03:00:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-09 03:00:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-09 03:00:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 03:00:29,295 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 03:00:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 03:00:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-09 03:00:29,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-09 03:00:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 03:00:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 03:00:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 03:00:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 03:00:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 03:00:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 03:00:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-09 03:00:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-09 03:00:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-09 03:00:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 03:00:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 03:00:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 03:00:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 03:00:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 03:00:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-09 03:00:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-09 03:00:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-09 03:00:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-09 03:00:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-09 03:00:29,297 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-09 03:00:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-09 03:00:29,297 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-09 03:00:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2024-11-09 03:00:29,299 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2024-11-09 03:00:29,300 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-09 03:00:29,300 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-09 03:00:29,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 03:00:29,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 03:00:29,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 03:00:29,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 03:00:29,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 03:00:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 03:00:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-09 03:00:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-09 03:00:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-09 03:00:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 03:00:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 03:00:29,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 03:00:29,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 03:00:29,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 03:00:29,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 03:00:29,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-09 03:00:29,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-09 03:00:29,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-09 03:00:29,634 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 03:00:29,637 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 03:00:38,489 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-11-09 03:00:38,489 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 03:00:38,505 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 03:00:38,505 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 03:00:38,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:00:38 BoogieIcfgContainer [2024-11-09 03:00:38,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 03:00:38,510 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 03:00:38,510 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 03:00:38,513 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 03:00:38,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:00:25" (1/3) ... [2024-11-09 03:00:38,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548e91c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:00:38, skipping insertion in model container [2024-11-09 03:00:38,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:00:28" (2/3) ... [2024-11-09 03:00:38,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548e91c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:00:38, skipping insertion in model container [2024-11-09 03:00:38,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:00:38" (3/3) ... [2024-11-09 03:00:38,517 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_with_lookup_harness_negated.i [2024-11-09 03:00:38,533 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 03:00:38,534 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 03:00:38,611 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 03:00:38,619 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;@558a0eed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 03:00:38,619 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 03:00:38,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 106 states have (on average 1.2264150943396226) internal successors, (130), 107 states have internal predecessors, (130), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 03:00:38,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 03:00:38,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 03:00:38,637 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 03:00:38,638 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 03:00:38,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 03:00:38,643 INFO L85 PathProgramCache]: Analyzing trace with hash -454301623, now seen corresponding path program 1 times [2024-11-09 03:00:38,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 03:00:38,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033494913] [2024-11-09 03:00:38,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:00:38,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 03:01:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:01:58,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 03:01:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:01:58,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 03:01:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:01:58,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-09 03:01:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:01:58,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 03:01:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:01:58,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-09 03:01:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:01:58,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 03:01:58,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:01:58,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 03:01:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:01:58,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-09 03:01:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:01:58,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-09 03:01:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:01:58,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 03:01:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:01:58,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 03:01:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:01:58,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 03:01:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:01:58,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 03:01:58,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:01:58,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 03:01:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:01:58,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 03:01:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:01:58,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-09 03:01:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:01:58,686 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-09 03:01:58,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 03:01:58,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033494913] [2024-11-09 03:01:58,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033494913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 03:01:58,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 03:01:58,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 03:01:58,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877060868] [2024-11-09 03:01:58,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 03:01:58,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 03:01:58,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 03:01:58,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 03:01:58,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 03:01:58,728 INFO L87 Difference]: Start difference. First operand has 164 states, 106 states have (on average 1.2264150943396226) internal successors, (130), 107 states have internal predecessors, (130), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16)