./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 14628bdc2b5dee98fd531ba30b57569c060efa6ead93e7c2de47c8a88cf53b5a --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 04:52:43,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 04:52:43,852 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 04:52:43,856 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 04:52:43,856 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 04:52:43,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 04:52:43,869 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 04:52:43,869 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 04:52:43,870 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 04:52:43,870 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 04:52:43,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 04:52:43,870 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 04:52:43,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 04:52:43,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 04:52:43,870 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 04:52:43,870 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 04:52:43,871 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 04:52:43,871 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 04:52:43,871 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 04:52:43,871 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 04:52:43,871 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 04:52:43,871 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 04:52:43,871 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 04:52:43,871 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 04:52:43,871 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 04:52:43,871 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 04:52:43,871 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 04:52:43,871 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 04:52:43,872 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 04:52:43,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:52:43,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 04:52:43,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 04:52:43,872 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 04:52:43,872 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 04:52:43,872 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 04:52:43,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 04:52:43,872 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 04:52:43,872 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 04:52:43,872 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 04:52:43,872 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 04:52:43,872 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14628bdc2b5dee98fd531ba30b57569c060efa6ead93e7c2de47c8a88cf53b5a [2025-02-06 04:52:44,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 04:52:44,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 04:52:44,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 04:52:44,049 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 04:52:44,049 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 04:52:44,050 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2025-02-06 04:52:45,191 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9c25b5b07/88800a40c9174dc8bf786aeaf51c58cc/FLAG7963cc6fe [2025-02-06 04:52:45,607 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 04:52:45,608 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2025-02-06 04:52:45,632 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9c25b5b07/88800a40c9174dc8bf786aeaf51c58cc/FLAG7963cc6fe [2025-02-06 04:52:45,642 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9c25b5b07/88800a40c9174dc8bf786aeaf51c58cc [2025-02-06 04:52:45,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 04:52:45,644 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 04:52:45,645 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 04:52:45,645 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 04:52:45,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 04:52:45,649 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:52:45" (1/1) ... [2025-02-06 04:52:45,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58c17987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:45, skipping insertion in model container [2025-02-06 04:52:45,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:52:45" (1/1) ... [2025-02-06 04:52:45,695 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 04:52:45,837 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2025-02-06 04:52:45,843 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2025-02-06 04:52:46,306 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,307 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,307 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,308 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,310 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,323 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,326 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,327 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,327 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,328 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,329 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,329 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,330 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,648 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,653 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,689 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,690 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,690 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:52:46,711 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 04:52:46,721 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2025-02-06 04:52:46,721 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2025-02-06 04:52:46,760 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,760 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,760 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,760 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,762 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,772 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,776 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,777 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,777 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,778 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,778 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,778 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,781 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,864 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,871 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,880 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7770-7781] [2025-02-06 04:52:46,898 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,900 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,900 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:46,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:52:47,071 INFO L204 MainTranslator]: Completed translation [2025-02-06 04:52:47,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:47 WrapperNode [2025-02-06 04:52:47,072 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 04:52:47,073 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 04:52:47,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 04:52:47,073 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 04:52:47,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:47" (1/1) ... [2025-02-06 04:52:47,131 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:47" (1/1) ... [2025-02-06 04:52:47,225 INFO L138 Inliner]: procedures = 680, calls = 1678, calls flagged for inlining = 50, calls inlined = 10, statements flattened = 850 [2025-02-06 04:52:47,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 04:52:47,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 04:52:47,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 04:52:47,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 04:52:47,239 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:47" (1/1) ... [2025-02-06 04:52:47,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:47" (1/1) ... [2025-02-06 04:52:47,249 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:47" (1/1) ... [2025-02-06 04:52:47,314 INFO L175 MemorySlicer]: Split 332 memory accesses to 6 slices as follows [238, 2, 6, 8, 72, 6]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 0, 5, 10, 1]. The 241 writes are split as follows [232, 0, 2, 0, 6, 1]. [2025-02-06 04:52:47,315 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:47" (1/1) ... [2025-02-06 04:52:47,315 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:47" (1/1) ... [2025-02-06 04:52:47,338 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:47" (1/1) ... [2025-02-06 04:52:47,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:47" (1/1) ... [2025-02-06 04:52:47,348 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:47" (1/1) ... [2025-02-06 04:52:47,351 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:47" (1/1) ... [2025-02-06 04:52:47,358 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 04:52:47,359 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 04:52:47,359 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 04:52:47,359 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 04:52:47,359 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:47" (1/1) ... [2025-02-06 04:52:47,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:52:47,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:52:47,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 04:52:47,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-06 04:52:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-06 04:52:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 04:52:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2025-02-06 04:52:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 04:52:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 04:52:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 04:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-02-06 04:52:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 04:52:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 04:52:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-06 04:52:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-06 04:52:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 04:52:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 04:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 04:52:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-02-06 04:52:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-02-06 04:52:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-06 04:52:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 04:52:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-02-06 04:52:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2025-02-06 04:52:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-02-06 04:52:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-06 04:52:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 04:52:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-02-06 04:52:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 04:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 04:52:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 04:52:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 04:52:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-06 04:52:47,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-06 04:52:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2025-02-06 04:52:47,435 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2025-02-06 04:52:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 04:52:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 04:52:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 04:52:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 04:52:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 04:52:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 04:52:47,689 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 04:52:47,691 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 04:52:47,723 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-06 04:52:47,758 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-06 04:52:47,780 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-06 04:52:47,810 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2796: havoc #t~ret81;havoc #t~ite83.base, #t~ite83.offset;havoc #t~ret82.base, #t~ret82.offset; [2025-02-06 04:52:47,873 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-02-06 04:52:47,876 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 04:52:47,885 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2821: havoc #t~ret89.base, #t~ret89.offset; [2025-02-06 04:52:47,977 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7535: havoc aws_array_list_ensure_capacity_#t~ret764#1; [2025-02-06 04:52:47,979 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7412: call ULTIMATE.dealloc(aws_array_list_calc_necessary_size_~#index_inc~0#1.base, aws_array_list_calc_necessary_size_~#index_inc~0#1.offset);havoc aws_array_list_calc_necessary_size_~#index_inc~0#1.base, aws_array_list_calc_necessary_size_~#index_inc~0#1.offset; [2025-02-06 04:52:47,980 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7513: call ULTIMATE.dealloc(aws_array_list_ensure_capacity_~#necessary_size~0#1.base, aws_array_list_ensure_capacity_~#necessary_size~0#1.offset);havoc aws_array_list_ensure_capacity_~#necessary_size~0#1.base, aws_array_list_ensure_capacity_~#necessary_size~0#1.offset; [2025-02-06 04:52:47,980 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7522: havoc aws_array_list_ensure_capacity_#t~ret757#1; [2025-02-06 04:52:47,995 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7391: havoc #t~ret681.base, #t~ret681.offset; [2025-02-06 04:52:48,012 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2615: havoc #t~ret59#1; [2025-02-06 04:52:53,136 INFO L? ?]: Removed 167 outVars from TransFormulas that were not future-live. [2025-02-06 04:52:53,137 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 04:52:53,147 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 04:52:53,148 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 04:52:53,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:52:53 BoogieIcfgContainer [2025-02-06 04:52:53,148 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 04:52:53,150 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 04:52:53,150 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 04:52:53,154 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 04:52:53,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 04:52:45" (1/3) ... [2025-02-06 04:52:53,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256f0844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:52:53, skipping insertion in model container [2025-02-06 04:52:53,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:47" (2/3) ... [2025-02-06 04:52:53,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256f0844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:52:53, skipping insertion in model container [2025-02-06 04:52:53,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:52:53" (3/3) ... [2025-02-06 04:52:53,156 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_set_at_harness.i [2025-02-06 04:52:53,175 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 04:52:53,176 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_set_at_harness.i that has 24 procedures, 290 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-06 04:52:53,264 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 04:52:53,272 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;@4cc4060, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 04:52:53,273 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 04:52:53,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 290 states, 169 states have (on average 1.21301775147929) internal successors, (205), 171 states have internal predecessors, (205), 96 states have call successors, (96), 23 states have call predecessors, (96), 23 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2025-02-06 04:52:53,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-02-06 04:52:53,287 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:52:53,287 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:52:53,288 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:52:53,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:52:53,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1564178686, now seen corresponding path program 1 times [2025-02-06 04:52:53,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:52:53,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362114546] [2025-02-06 04:52:53,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:52:53,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:52:57,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-02-06 04:52:57,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-02-06 04:52:57,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:52:57,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:52:58,419 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2025-02-06 04:52:58,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:52:58,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362114546] [2025-02-06 04:52:58,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362114546] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:52:58,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265085806] [2025-02-06 04:52:58,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:52:58,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:52:58,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:52:58,427 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 04:52:58,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 04:53:02,601 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-02-06 04:53:03,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-02-06 04:53:03,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:53:03,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:03,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 4469 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 04:53:03,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:53:03,097 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2025-02-06 04:53:03,097 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:53:03,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265085806] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:53:03,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:53:03,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 04:53:03,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618564963] [2025-02-06 04:53:03,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:53:03,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 04:53:03,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:53:03,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 04:53:03,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 04:53:03,123 INFO L87 Difference]: Start difference. First operand has 290 states, 169 states have (on average 1.21301775147929) internal successors, (205), 171 states have internal predecessors, (205), 96 states have call successors, (96), 23 states have call predecessors, (96), 23 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2025-02-06 04:53:03,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:53:03,177 INFO L93 Difference]: Finished difference Result 573 states and 842 transitions. [2025-02-06 04:53:03,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 04:53:03,180 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 156 [2025-02-06 04:53:03,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:53:03,186 INFO L225 Difference]: With dead ends: 573 [2025-02-06 04:53:03,187 INFO L226 Difference]: Without dead ends: 285 [2025-02-06 04:53:03,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 04:53:03,196 INFO L435 NwaCegarLoop]: 395 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 04:53:03,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 04:53:03,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2025-02-06 04:53:03,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2025-02-06 04:53:03,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 165 states have (on average 1.206060606060606) internal successors, (199), 167 states have internal predecessors, (199), 96 states have call successors, (96), 23 states have call predecessors, (96), 23 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2025-02-06 04:53:03,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 390 transitions. [2025-02-06 04:53:03,257 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 390 transitions. Word has length 156 [2025-02-06 04:53:03,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:53:03,259 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 390 transitions. [2025-02-06 04:53:03,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2025-02-06 04:53:03,259 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 390 transitions. [2025-02-06 04:53:03,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-02-06 04:53:03,264 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:53:03,265 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:53:03,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 04:53:03,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 04:53:03,466 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:53:03,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:53:03,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1919416283, now seen corresponding path program 1 times [2025-02-06 04:53:03,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:53:03,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205398134] [2025-02-06 04:53:03,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:53:03,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:53:07,279 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-02-06 04:53:07,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-02-06 04:53:07,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:53:07,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:08,297 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2025-02-06 04:53:08,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:53:08,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205398134] [2025-02-06 04:53:08,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205398134] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:53:08,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811542181] [2025-02-06 04:53:08,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:53:08,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:53:08,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:53:08,300 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 04:53:08,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 04:53:12,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-02-06 04:53:13,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-02-06 04:53:13,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:53:13,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:13,035 INFO L256 TraceCheckSpWp]: Trace formula consists of 4469 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 04:53:13,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:53:13,683 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2025-02-06 04:53:13,683 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:53:13,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811542181] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:53:13,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:53:13,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-02-06 04:53:13,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483545922] [2025-02-06 04:53:13,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:53:13,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:53:13,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:53:13,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:53:13,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 04:53:13,692 INFO L87 Difference]: Start difference. First operand 285 states and 390 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2025-02-06 04:53:16,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:53:16,417 INFO L93 Difference]: Finished difference Result 546 states and 764 transitions. [2025-02-06 04:53:16,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:53:16,417 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 156 [2025-02-06 04:53:16,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:53:16,425 INFO L225 Difference]: With dead ends: 546 [2025-02-06 04:53:16,425 INFO L226 Difference]: Without dead ends: 287 [2025-02-06 04:53:16,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-02-06 04:53:16,427 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 405 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-02-06 04:53:16,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1257 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-02-06 04:53:16,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2025-02-06 04:53:16,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2025-02-06 04:53:16,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 166 states have (on average 1.2048192771084338) internal successors, (200), 169 states have internal predecessors, (200), 96 states have call successors, (96), 23 states have call predecessors, (96), 24 states have return successors, (111), 95 states have call predecessors, (111), 95 states have call successors, (111) [2025-02-06 04:53:16,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 407 transitions. [2025-02-06 04:53:16,458 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 407 transitions. Word has length 156 [2025-02-06 04:53:16,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:53:16,458 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 407 transitions. [2025-02-06 04:53:16,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2025-02-06 04:53:16,458 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 407 transitions. [2025-02-06 04:53:16,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2025-02-06 04:53:16,464 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:53:16,464 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:53:16,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 04:53:16,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:53:16,665 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:53:16,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:53:16,666 INFO L85 PathProgramCache]: Analyzing trace with hash -787847557, now seen corresponding path program 1 times [2025-02-06 04:53:16,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:53:16,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447064800] [2025-02-06 04:53:16,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:53:16,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:53:20,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-02-06 04:53:20,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-02-06 04:53:20,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:53:20,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:21,824 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2025-02-06 04:53:21,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:53:21,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447064800] [2025-02-06 04:53:21,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447064800] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:53:21,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711116221] [2025-02-06 04:53:21,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:53:21,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:53:21,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:53:21,827 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 04:53:21,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 04:53:25,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-02-06 04:53:26,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-02-06 04:53:26,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:53:26,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:26,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 4723 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 04:53:26,333 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:53:27,843 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-02-06 04:53:27,843 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:53:27,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711116221] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:53:27,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:53:27,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-02-06 04:53:27,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147695037] [2025-02-06 04:53:27,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:53:27,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 04:53:27,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:53:27,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 04:53:27,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 04:53:27,845 INFO L87 Difference]: Start difference. First operand 287 states and 407 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2025-02-06 04:53:32,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:53:32,981 INFO L93 Difference]: Finished difference Result 518 states and 734 transitions. [2025-02-06 04:53:32,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 04:53:32,985 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 186 [2025-02-06 04:53:32,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:53:32,988 INFO L225 Difference]: With dead ends: 518 [2025-02-06 04:53:32,990 INFO L226 Difference]: Without dead ends: 287 [2025-02-06 04:53:32,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2025-02-06 04:53:32,992 INFO L435 NwaCegarLoop]: 301 mSDtfsCounter, 470 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2025-02-06 04:53:32,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 1630 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2025-02-06 04:53:32,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2025-02-06 04:53:33,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2025-02-06 04:53:33,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 166 states have (on average 1.2048192771084338) internal successors, (200), 169 states have internal predecessors, (200), 96 states have call successors, (96), 23 states have call predecessors, (96), 24 states have return successors, (107), 95 states have call predecessors, (107), 95 states have call successors, (107) [2025-02-06 04:53:33,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 403 transitions. [2025-02-06 04:53:33,027 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 403 transitions. Word has length 186 [2025-02-06 04:53:33,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:53:33,032 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 403 transitions. [2025-02-06 04:53:33,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2025-02-06 04:53:33,032 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 403 transitions. [2025-02-06 04:53:33,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2025-02-06 04:53:33,035 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:53:33,036 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:53:33,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 04:53:33,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:53:33,237 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:53:33,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:53:33,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1069265053, now seen corresponding path program 2 times [2025-02-06 04:53:33,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:53:33,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403754771] [2025-02-06 04:53:33,238 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 04:53:33,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:53:36,758 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 201 statements into 2 equivalence classes. [2025-02-06 04:53:36,846 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 201 statements. [2025-02-06 04:53:36,846 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 04:53:36,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:37,526 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2025-02-06 04:53:37,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:53:37,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403754771] [2025-02-06 04:53:37,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403754771] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:53:37,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:53:37,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 04:53:37,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372149490] [2025-02-06 04:53:37,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:53:37,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:53:37,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:53:37,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:53:37,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 04:53:37,527 INFO L87 Difference]: Start difference. First operand 287 states and 403 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-06 04:53:37,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:53:37,700 INFO L93 Difference]: Finished difference Result 500 states and 692 transitions. [2025-02-06 04:53:37,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 04:53:37,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 201 [2025-02-06 04:53:37,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:53:37,704 INFO L225 Difference]: With dead ends: 500 [2025-02-06 04:53:37,706 INFO L226 Difference]: Without dead ends: 292 [2025-02-06 04:53:37,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 04:53:37,708 INFO L435 NwaCegarLoop]: 387 mSDtfsCounter, 0 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 04:53:37,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1542 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 04:53:37,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2025-02-06 04:53:37,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2025-02-06 04:53:37,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 170 states have (on average 1.2) internal successors, (204), 173 states have internal predecessors, (204), 96 states have call successors, (96), 23 states have call predecessors, (96), 25 states have return successors, (109), 96 states have call predecessors, (109), 95 states have call successors, (109) [2025-02-06 04:53:37,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 409 transitions. [2025-02-06 04:53:37,728 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 409 transitions. Word has length 201 [2025-02-06 04:53:37,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:53:37,729 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 409 transitions. [2025-02-06 04:53:37,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-06 04:53:37,729 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 409 transitions. [2025-02-06 04:53:37,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2025-02-06 04:53:37,731 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:53:37,731 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:53:37,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 04:53:37,732 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:53:37,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:53:37,735 INFO L85 PathProgramCache]: Analyzing trace with hash 683144035, now seen corresponding path program 1 times [2025-02-06 04:53:37,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:53:37,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510130063] [2025-02-06 04:53:37,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:53:37,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:53:41,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 207 statements into 1 equivalence classes. [2025-02-06 04:53:41,341 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 207 of 207 statements. [2025-02-06 04:53:41,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:53:41,342 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:42,826 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2025-02-06 04:53:42,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:53:42,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510130063] [2025-02-06 04:53:42,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510130063] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:53:42,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687266035] [2025-02-06 04:53:42,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:53:42,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:53:42,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:53:42,830 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 04:53:42,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 04:53:47,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 207 statements into 1 equivalence classes. [2025-02-06 04:53:47,463 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 207 of 207 statements. [2025-02-06 04:53:47,463 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:53:47,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:47,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 4854 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 04:53:47,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:53:49,319 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2025-02-06 04:53:49,320 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:53:49,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687266035] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:53:49,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:53:49,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2025-02-06 04:53:49,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060917555] [2025-02-06 04:53:49,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:53:49,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 04:53:49,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:53:49,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 04:53:49,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-02-06 04:53:49,323 INFO L87 Difference]: Start difference. First operand 292 states and 409 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2025-02-06 04:53:55,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:53:55,254 INFO L93 Difference]: Finished difference Result 522 states and 728 transitions. [2025-02-06 04:53:55,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 04:53:55,255 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) Word has length 207 [2025-02-06 04:53:55,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:53:55,257 INFO L225 Difference]: With dead ends: 522 [2025-02-06 04:53:55,257 INFO L226 Difference]: Without dead ends: 292 [2025-02-06 04:53:55,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2025-02-06 04:53:55,261 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 508 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2025-02-06 04:53:55,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 1856 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2025-02-06 04:53:55,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2025-02-06 04:53:55,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2025-02-06 04:53:55,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 170 states have (on average 1.2) internal successors, (204), 173 states have internal predecessors, (204), 96 states have call successors, (96), 23 states have call predecessors, (96), 25 states have return successors, (103), 96 states have call predecessors, (103), 95 states have call successors, (103) [2025-02-06 04:53:55,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 403 transitions. [2025-02-06 04:53:55,279 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 403 transitions. Word has length 207 [2025-02-06 04:53:55,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:53:55,280 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 403 transitions. [2025-02-06 04:53:55,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2025-02-06 04:53:55,280 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 403 transitions. [2025-02-06 04:53:55,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2025-02-06 04:53:55,281 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:53:55,282 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:53:55,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 04:53:55,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:53:55,483 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:53:55,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:53:55,483 INFO L85 PathProgramCache]: Analyzing trace with hash 2017591175, now seen corresponding path program 2 times [2025-02-06 04:53:55,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:53:55,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904819254] [2025-02-06 04:53:55,485 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 04:53:55,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:53:59,012 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 222 statements into 2 equivalence classes. [2025-02-06 04:53:59,450 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 222 of 222 statements. [2025-02-06 04:53:59,451 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 04:53:59,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:54:01,030 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2025-02-06 04:54:01,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:54:01,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904819254] [2025-02-06 04:54:01,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904819254] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:54:01,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:54:01,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 04:54:01,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914291516] [2025-02-06 04:54:01,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:54:01,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:54:01,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:54:01,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:54:01,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:54:01,033 INFO L87 Difference]: Start difference. First operand 292 states and 403 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2025-02-06 04:54:01,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:54:01,384 INFO L93 Difference]: Finished difference Result 575 states and 799 transitions. [2025-02-06 04:54:01,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 04:54:01,386 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) Word has length 222 [2025-02-06 04:54:01,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:54:01,389 INFO L225 Difference]: With dead ends: 575 [2025-02-06 04:54:01,389 INFO L226 Difference]: Without dead ends: 334 [2025-02-06 04:54:01,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 04:54:01,391 INFO L435 NwaCegarLoop]: 409 mSDtfsCounter, 23 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 04:54:01,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 2430 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 04:54:01,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2025-02-06 04:54:01,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 308. [2025-02-06 04:54:01,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 180 states have (on average 1.1944444444444444) internal successors, (215), 183 states have internal predecessors, (215), 101 states have call successors, (101), 23 states have call predecessors, (101), 26 states have return successors, (110), 102 states have call predecessors, (110), 100 states have call successors, (110) [2025-02-06 04:54:01,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 426 transitions. [2025-02-06 04:54:01,408 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 426 transitions. Word has length 222 [2025-02-06 04:54:01,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:54:01,409 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 426 transitions. [2025-02-06 04:54:01,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2025-02-06 04:54:01,409 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 426 transitions. [2025-02-06 04:54:01,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2025-02-06 04:54:01,413 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:54:01,413 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:54:01,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 04:54:01,414 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:54:01,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:54:01,414 INFO L85 PathProgramCache]: Analyzing trace with hash -441533274, now seen corresponding path program 1 times [2025-02-06 04:54:01,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:54:01,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750309016] [2025-02-06 04:54:01,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:54:01,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:54:04,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 222 statements into 1 equivalence classes. [2025-02-06 04:54:04,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 222 of 222 statements. [2025-02-06 04:54:04,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:54:04,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:54:06,319 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2025-02-06 04:54:06,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:54:06,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750309016] [2025-02-06 04:54:06,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750309016] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:54:06,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765254251] [2025-02-06 04:54:06,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:54:06,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:54:06,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:54:06,322 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 04:54:06,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 04:54:10,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 222 statements into 1 equivalence classes. [2025-02-06 04:54:11,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 222 of 222 statements. [2025-02-06 04:54:11,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:54:11,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:54:11,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 4978 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 04:54:11,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:54:13,626 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2025-02-06 04:54:13,626 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:54:13,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765254251] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:54:13,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:54:13,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 17 [2025-02-06 04:54:13,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138376589] [2025-02-06 04:54:13,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:54:13,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 04:54:13,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:54:13,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 04:54:13,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2025-02-06 04:54:13,630 INFO L87 Difference]: Start difference. First operand 308 states and 426 transitions. Second operand has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 6 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 5 states have call predecessors, (29), 6 states have call successors, (29)