./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d 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_erase_harness_negated.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 5aa4df3bf07993e90fd6085d301926d2fe237de2ffd3a09881087885f4330551 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:26:56,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:26:56,741 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:26:56,744 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:26:56,744 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:26:56,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:26:56,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:26:56,764 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:26:56,765 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:26:56,765 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:26:56,765 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:26:56,765 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:26:56,765 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:26:56,765 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:26:56,765 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:26:56,765 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:26:56,766 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:26:56,766 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:26:56,766 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:26:56,766 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:26:56,766 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:26:56,766 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:26:56,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:26:56,766 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:26:56,766 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:26:56,766 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:26:56,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:26:56,767 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:26:56,767 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:26:56,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:26:56,767 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:26:56,767 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:26:56,767 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:26:56,767 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:26:56,767 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:26:56,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:26:56,767 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:26:56,767 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:26:56,768 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:26:56,768 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:26:56,768 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 -> 5aa4df3bf07993e90fd6085d301926d2fe237de2ffd3a09881087885f4330551 [2025-02-08 01:26:56,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:26:56,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:26:56,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:26:56,961 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:26:56,962 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:26:56,962 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i [2025-02-08 01:26:58,053 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd72aee3f/a18d965cfe984a48bb2c5348e8c0bce2/FLAG5cc5f1f52 [2025-02-08 01:26:58,484 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:26:58,485 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i [2025-02-08 01:26:58,519 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd72aee3f/a18d965cfe984a48bb2c5348e8c0bce2/FLAG5cc5f1f52 [2025-02-08 01:26:58,630 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd72aee3f/a18d965cfe984a48bb2c5348e8c0bce2 [2025-02-08 01:26:58,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:26:58,635 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:26:58,636 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:26:58,636 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:26:58,643 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:26:58,643 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:26:58" (1/1) ... [2025-02-08 01:26:58,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@735e6022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:58, skipping insertion in model container [2025-02-08 01:26:58,647 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:26:58" (1/1) ... [2025-02-08 01:26:58,710 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:26:58,869 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_erase_harness_negated.i[4494,4507] [2025-02-08 01:26:58,875 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_erase_harness_negated.i[4554,4567] [2025-02-08 01:26:59,288 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,289 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,289 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,290 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,291 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,308 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,308 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,311 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,311 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,314 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,315 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,316 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,316 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,601 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,601 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,605 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,605 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,607 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,607 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,610 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,614 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,641 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,641 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:26:59,672 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:26:59,685 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_erase_harness_negated.i[4494,4507] [2025-02-08 01:26:59,685 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_erase_harness_negated.i[4554,4567] [2025-02-08 01:26:59,741 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,741 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,742 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,742 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,743 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,747 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,747 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,750 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,750 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,750 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,751 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,752 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,754 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,844 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,846 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,847 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,847 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,848 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,848 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,849 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,852 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7793-7804] [2025-02-08 01:26:59,879 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,879 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:59,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:27:00,007 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:27:00,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:00 WrapperNode [2025-02-08 01:27:00,007 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:27:00,008 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:27:00,008 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:27:00,008 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:27:00,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:00" (1/1) ... [2025-02-08 01:27:00,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:00" (1/1) ... [2025-02-08 01:27:00,128 INFO L138 Inliner]: procedures = 678, calls = 1677, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 734 [2025-02-08 01:27:00,128 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:27:00,129 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:27:00,132 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:27:00,132 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:27:00,143 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:00" (1/1) ... [2025-02-08 01:27:00,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:00" (1/1) ... [2025-02-08 01:27:00,150 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:00" (1/1) ... [2025-02-08 01:27:00,211 INFO L175 MemorySlicer]: Split 331 memory accesses to 6 slices as follows [238, 2, 6, 73, 9, 3]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 0, 10, 5, 1]. The 243 writes are split as follows [232, 0, 2, 6, 2, 1]. [2025-02-08 01:27:00,211 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:00" (1/1) ... [2025-02-08 01:27:00,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:00" (1/1) ... [2025-02-08 01:27:00,242 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:00" (1/1) ... [2025-02-08 01:27:00,246 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:00" (1/1) ... [2025-02-08 01:27:00,250 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:00" (1/1) ... [2025-02-08 01:27:00,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:00" (1/1) ... [2025-02-08 01:27:00,265 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:27:00,269 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:27:00,269 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:27:00,269 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:27:00,270 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:00" (1/1) ... [2025-02-08 01:27:00,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:27:00,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:27:00,298 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) [2025-02-08 01:27:00,299 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 [2025-02-08 01:27:00,315 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2025-02-08 01:27:00,316 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2025-02-08 01:27:00,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:27:00,316 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-08 01:27:00,316 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-08 01:27:00,316 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-08 01:27:00,316 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-08 01:27:00,316 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:27:00,317 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:27:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:27:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:27:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:27:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:27:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:27:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:27:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:27:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:27:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:27:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:27:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:27:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:27:00,318 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:27:00,318 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:27:00,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:27:00,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:27:00,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:27:00,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:27:00,318 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint8_t [2025-02-08 01:27:00,318 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint8_t [2025-02-08 01:27:00,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:27:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:27:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:27:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:27:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:27:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:27:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:27:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:27:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:27:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:27:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-08 01:27:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-08 01:27:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-08 01:27:00,320 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-08 01:27:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:27:00,320 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:27:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:27:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:27:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:27:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:27:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:27:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:27:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-08 01:27:00,321 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-08 01:27:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:27:00,321 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:27:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2025-02-08 01:27:00,321 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2025-02-08 01:27:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:27:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:27:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:27:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:27:00,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:27:00,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:27:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:27:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:27:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:27:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:27:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:27:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:27:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:27:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:27:00,323 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:27:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:27:00,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:27:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:27:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:27:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:27:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:27:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:27:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:27:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2025-02-08 01:27:00,324 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2025-02-08 01:27:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-02-08 01:27:00,324 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-02-08 01:27:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-02-08 01:27:00,324 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-02-08 01:27:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:27:00,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:27:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:27:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:27:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:27:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:27:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:27:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:27:00,583 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:27:00,585 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:27:00,624 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-08 01:27:00,627 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc #t~nondet10; [2025-02-08 01:27:00,639 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-08 01:27:00,651 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-08 01:27:00,655 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7414: havoc #t~ret688.base, #t~ret688.offset; [2025-02-08 01:27:00,712 INFO L1324 $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; [2025-02-08 01:27:00,714 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:27:00,719 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7361: havoc #t~ret682.base, #t~ret682.offset; [2025-02-08 01:27:05,818 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3355: havoc aws_array_list_pop_front_#t~ret182#1;aws_array_list_erase_#t~ret197#1 := aws_array_list_pop_front_#res#1;havoc aws_array_list_pop_front_#t~ret178#1, aws_array_list_pop_front_#t~ret179#1, aws_array_list_pop_front_#t~ret180#1, aws_array_list_pop_front_#t~ret181#1, aws_array_list_pop_front_#t~ret182#1, aws_array_list_pop_front_~list#1.base, aws_array_list_pop_front_~list#1.offset;havoc aws_array_list_pop_front_#in~list#1.base, aws_array_list_pop_front_#in~list#1.offset;assume { :end_inline_aws_array_list_pop_front } true;assume -2147483648 <= aws_array_list_erase_#t~ret197#1 && aws_array_list_erase_#t~ret197#1 <= 2147483647;havoc aws_array_list_erase_#t~ret197#1; [2025-02-08 01:27:05,819 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3387: havoc aws_array_list_erase_#t~ret196#1; [2025-02-08 01:27:06,057 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3445: havoc #t~ret230; [2025-02-08 01:27:06,057 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3432: havoc ~last_item_offset~1; [2025-02-08 01:27:06,140 INFO L? ?]: Removed 141 outVars from TransFormulas that were not future-live. [2025-02-08 01:27:06,140 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:27:06,151 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:27:06,154 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:27:06,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:27:06 BoogieIcfgContainer [2025-02-08 01:27:06,154 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:27:06,156 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:27:06,156 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:27:06,159 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:27:06,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:26:58" (1/3) ... [2025-02-08 01:27:06,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5454c2d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:27:06, skipping insertion in model container [2025-02-08 01:27:06,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:00" (2/3) ... [2025-02-08 01:27:06,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5454c2d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:27:06, skipping insertion in model container [2025-02-08 01:27:06,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:27:06" (3/3) ... [2025-02-08 01:27:06,161 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_erase_harness_negated.i [2025-02-08 01:27:06,171 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:27:06,173 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_erase_harness_negated.i that has 21 procedures, 250 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 01:27:06,210 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:27:06,217 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;@168a5c53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:27:06,217 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:27:06,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 250 states, 135 states have (on average 1.2) internal successors, (162), 141 states have internal predecessors, (162), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2025-02-08 01:27:06,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-02-08 01:27:06,226 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:27:06,226 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:27:06,226 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:27:06,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:27:06,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1347381289, now seen corresponding path program 1 times [2025-02-08 01:27:06,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:27:06,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739809298] [2025-02-08 01:27:06,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:06,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:27:10,830 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-02-08 01:27:11,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-02-08 01:27:11,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:11,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:11,436 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2025-02-08 01:27:11,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:27:11,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739809298] [2025-02-08 01:27:11,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739809298] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:27:11,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714855654] [2025-02-08 01:27:11,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:11,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:27:11,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:27:11,444 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) [2025-02-08 01:27:11,445 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 [2025-02-08 01:27:15,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-02-08 01:27:16,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-02-08 01:27:16,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:16,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:16,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 4132 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:27:16,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:27:16,138 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2025-02-08 01:27:16,139 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:27:16,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714855654] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:27:16,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:27:16,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:27:16,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755569670] [2025-02-08 01:27:16,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:27:16,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:27:16,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:27:16,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:27:16,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:27:16,160 INFO L87 Difference]: Start difference. First operand has 250 states, 135 states have (on average 1.2) internal successors, (162), 141 states have internal predecessors, (162), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-02-08 01:27:16,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:27:16,212 INFO L93 Difference]: Finished difference Result 492 states and 722 transitions. [2025-02-08 01:27:16,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:27:16,213 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 86 [2025-02-08 01:27:16,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:27:16,221 INFO L225 Difference]: With dead ends: 492 [2025-02-08 01:27:16,221 INFO L226 Difference]: Without dead ends: 232 [2025-02-08 01:27:16,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:27:16,229 INFO L435 NwaCegarLoop]: 336 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, 336 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 [2025-02-08 01:27:16,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:27:16,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2025-02-08 01:27:16,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2025-02-08 01:27:16,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 126 states have (on average 1.1825396825396826) internal successors, (149), 131 states have internal predecessors, (149), 85 states have call successors, (85), 20 states have call predecessors, (85), 20 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2025-02-08 01:27:16,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 314 transitions. [2025-02-08 01:27:16,275 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 314 transitions. Word has length 86 [2025-02-08 01:27:16,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:27:16,275 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 314 transitions. [2025-02-08 01:27:16,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-02-08 01:27:16,276 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 314 transitions. [2025-02-08 01:27:16,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-02-08 01:27:16,278 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:27:16,278 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:27:16,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 01:27:16,479 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 [2025-02-08 01:27:16,480 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:27:16,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:27:16,480 INFO L85 PathProgramCache]: Analyzing trace with hash 183845927, now seen corresponding path program 1 times [2025-02-08 01:27:16,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:27:16,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642820237] [2025-02-08 01:27:16,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:16,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:27:20,469 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-02-08 01:27:20,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-02-08 01:27:20,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:20,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:22,720 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-02-08 01:27:22,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:27:22,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642820237] [2025-02-08 01:27:22,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642820237] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:27:22,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:27:22,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:27:22,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473599089] [2025-02-08 01:27:22,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:27:22,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:27:22,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:27:22,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:27:22,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:27:22,722 INFO L87 Difference]: Start difference. First operand 232 states and 314 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2025-02-08 01:27:23,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:27:23,249 INFO L93 Difference]: Finished difference Result 242 states and 341 transitions. [2025-02-08 01:27:23,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:27:23,249 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2025-02-08 01:27:23,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:27:23,254 INFO L225 Difference]: With dead ends: 242 [2025-02-08 01:27:23,254 INFO L226 Difference]: Without dead ends: 240 [2025-02-08 01:27:23,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:27:23,255 INFO L435 NwaCegarLoop]: 311 mSDtfsCounter, 3 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-08 01:27:23,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1531 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-08 01:27:23,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2025-02-08 01:27:23,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 239. [2025-02-08 01:27:23,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 130 states have (on average 1.176923076923077) internal successors, (153), 136 states have internal predecessors, (153), 86 states have call successors, (86), 21 states have call predecessors, (86), 22 states have return successors, (99), 81 states have call predecessors, (99), 81 states have call successors, (99) [2025-02-08 01:27:23,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 338 transitions. [2025-02-08 01:27:23,284 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 338 transitions. Word has length 86 [2025-02-08 01:27:23,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:27:23,284 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 338 transitions. [2025-02-08 01:27:23,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2025-02-08 01:27:23,285 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 338 transitions. [2025-02-08 01:27:23,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-02-08 01:27:23,286 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:27:23,287 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:27:23,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:27:23,287 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:27:23,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:27:23,291 INFO L85 PathProgramCache]: Analyzing trace with hash 316841598, now seen corresponding path program 1 times [2025-02-08 01:27:23,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:27:23,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066095495] [2025-02-08 01:27:23,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:23,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:27:27,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-02-08 01:27:27,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-02-08 01:27:27,507 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:27,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:28,896 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-02-08 01:27:28,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:27:28,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066095495] [2025-02-08 01:27:28,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066095495] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:27:28,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:27:28,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 01:27:28,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502634899] [2025-02-08 01:27:28,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:27:28,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 01:27:28,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:27:28,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 01:27:28,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:27:28,901 INFO L87 Difference]: Start difference. First operand 239 states and 338 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 6 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2025-02-08 01:27:31,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:27:31,631 INFO L93 Difference]: Finished difference Result 452 states and 648 transitions. [2025-02-08 01:27:31,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 01:27:31,632 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 6 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 100 [2025-02-08 01:27:31,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:27:31,634 INFO L225 Difference]: With dead ends: 452 [2025-02-08 01:27:31,634 INFO L226 Difference]: Without dead ends: 251 [2025-02-08 01:27:31,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-02-08 01:27:31,636 INFO L435 NwaCegarLoop]: 295 mSDtfsCounter, 82 mSDsluCounter, 1608 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-02-08 01:27:31,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1903 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-02-08 01:27:31,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2025-02-08 01:27:31,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2025-02-08 01:27:31,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 136 states have (on average 1.1764705882352942) internal successors, (160), 142 states have internal predecessors, (160), 91 states have call successors, (91), 22 states have call predecessors, (91), 23 states have return successors, (99), 86 states have call predecessors, (99), 86 states have call successors, (99) [2025-02-08 01:27:31,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 350 transitions. [2025-02-08 01:27:31,660 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 350 transitions. Word has length 100 [2025-02-08 01:27:31,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:27:31,661 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 350 transitions. [2025-02-08 01:27:31,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 6 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2025-02-08 01:27:31,661 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 350 transitions. [2025-02-08 01:27:31,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-02-08 01:27:31,665 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:27:31,665 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 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] [2025-02-08 01:27:31,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 01:27:31,666 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:27:31,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:27:31,666 INFO L85 PathProgramCache]: Analyzing trace with hash 268483049, now seen corresponding path program 1 times [2025-02-08 01:27:31,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:27:31,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599353214] [2025-02-08 01:27:31,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:31,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:27:35,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-02-08 01:27:35,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-02-08 01:27:35,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:35,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:37,085 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2025-02-08 01:27:37,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:27:37,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599353214] [2025-02-08 01:27:37,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599353214] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:27:37,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:27:37,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:27:37,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696201675] [2025-02-08 01:27:37,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:27:37,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:27:37,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:27:37,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:27:37,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:27:37,089 INFO L87 Difference]: Start difference. First operand 251 states and 350 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-08 01:27:37,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:27:37,604 INFO L93 Difference]: Finished difference Result 257 states and 355 transitions. [2025-02-08 01:27:37,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:27:37,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 101 [2025-02-08 01:27:37,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:27:37,609 INFO L225 Difference]: With dead ends: 257 [2025-02-08 01:27:37,609 INFO L226 Difference]: Without dead ends: 249 [2025-02-08 01:27:37,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:27:37,610 INFO L435 NwaCegarLoop]: 315 mSDtfsCounter, 3 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-08 01:27:37,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1543 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-08 01:27:37,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2025-02-08 01:27:37,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2025-02-08 01:27:37,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 136 states have (on average 1.1691176470588236) internal successors, (159), 141 states have internal predecessors, (159), 89 states have call successors, (89), 22 states have call predecessors, (89), 23 states have return successors, (98), 85 states have call predecessors, (98), 85 states have call successors, (98) [2025-02-08 01:27:37,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 346 transitions. [2025-02-08 01:27:37,630 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 346 transitions. Word has length 101 [2025-02-08 01:27:37,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:27:37,630 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 346 transitions. [2025-02-08 01:27:37,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-08 01:27:37,630 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 346 transitions. [2025-02-08 01:27:37,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-02-08 01:27:37,632 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:27:37,632 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 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] [2025-02-08 01:27:37,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 01:27:37,632 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:27:37,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:27:37,633 INFO L85 PathProgramCache]: Analyzing trace with hash -2102413177, now seen corresponding path program 1 times [2025-02-08 01:27:37,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:27:37,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189443290] [2025-02-08 01:27:37,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:37,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:27:41,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-02-08 01:27:41,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-02-08 01:27:41,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:41,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:43,215 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2025-02-08 01:27:43,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:27:43,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189443290] [2025-02-08 01:27:43,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189443290] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:27:43,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:27:43,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-08 01:27:43,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47353498] [2025-02-08 01:27:43,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:27:43,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 01:27:43,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:27:43,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 01:27:43,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-08 01:27:43,220 INFO L87 Difference]: Start difference. First operand 249 states and 346 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 8 states have internal predecessors, (60), 7 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) [2025-02-08 01:27:46,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:27:46,905 INFO L93 Difference]: Finished difference Result 389 states and 534 transitions. [2025-02-08 01:27:46,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 01:27:46,906 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 8 states have internal predecessors, (60), 7 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) Word has length 150 [2025-02-08 01:27:46,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:27:46,909 INFO L225 Difference]: With dead ends: 389 [2025-02-08 01:27:46,912 INFO L226 Difference]: Without dead ends: 261 [2025-02-08 01:27:46,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2025-02-08 01:27:46,914 INFO L435 NwaCegarLoop]: 282 mSDtfsCounter, 96 mSDsluCounter, 2072 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2025-02-08 01:27:46,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 2354 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2025-02-08 01:27:46,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2025-02-08 01:27:46,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2025-02-08 01:27:46,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 142 states have (on average 1.1690140845070423) internal successors, (166), 147 states have internal predecessors, (166), 94 states have call successors, (94), 23 states have call predecessors, (94), 24 states have return successors, (100), 90 states have call predecessors, (100), 90 states have call successors, (100) [2025-02-08 01:27:46,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 360 transitions. [2025-02-08 01:27:46,925 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 360 transitions. Word has length 150 [2025-02-08 01:27:46,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:27:46,926 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 360 transitions. [2025-02-08 01:27:46,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 8 states have internal predecessors, (60), 7 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) [2025-02-08 01:27:46,926 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 360 transitions. [2025-02-08 01:27:46,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-02-08 01:27:46,927 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:27:46,928 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 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] [2025-02-08 01:27:46,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 01:27:46,928 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:27:46,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:27:46,928 INFO L85 PathProgramCache]: Analyzing trace with hash -626963468, now seen corresponding path program 1 times [2025-02-08 01:27:46,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:27:46,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162871670] [2025-02-08 01:27:46,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:46,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:27:50,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-08 01:27:50,839 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-08 01:27:50,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:50,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:52,602 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2025-02-08 01:27:52,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:27:52,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162871670] [2025-02-08 01:27:52,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162871670] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:27:52,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:27:52,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 01:27:52,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249653412] [2025-02-08 01:27:52,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:27:52,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 01:27:52,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:27:52,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 01:27:52,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-08 01:27:52,604 INFO L87 Difference]: Start difference. First operand 261 states and 360 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 7 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) [2025-02-08 01:27:55,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:27:55,781 INFO L93 Difference]: Finished difference Result 370 states and 514 transitions. [2025-02-08 01:27:55,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 01:27:55,782 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 7 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) Word has length 147 [2025-02-08 01:27:55,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:27:55,784 INFO L225 Difference]: With dead ends: 370 [2025-02-08 01:27:55,784 INFO L226 Difference]: Without dead ends: 273 [2025-02-08 01:27:55,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-02-08 01:27:55,785 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 92 mSDsluCounter, 1839 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-02-08 01:27:55,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 2128 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-02-08 01:27:55,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2025-02-08 01:27:55,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2025-02-08 01:27:55,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 148 states have (on average 1.1689189189189189) internal successors, (173), 153 states have internal predecessors, (173), 99 states have call successors, (99), 24 states have call predecessors, (99), 25 states have return successors, (102), 95 states have call predecessors, (102), 95 states have call successors, (102) [2025-02-08 01:27:55,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 374 transitions. [2025-02-08 01:27:55,798 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 374 transitions. Word has length 147 [2025-02-08 01:27:55,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:27:55,798 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 374 transitions. [2025-02-08 01:27:55,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 7 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) [2025-02-08 01:27:55,799 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 374 transitions. [2025-02-08 01:27:55,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-02-08 01:27:55,800 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:27:55,800 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 3, 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] [2025-02-08 01:27:55,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 01:27:55,800 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:27:55,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:27:55,801 INFO L85 PathProgramCache]: Analyzing trace with hash 134247928, now seen corresponding path program 1 times [2025-02-08 01:27:55,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:27:55,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983227474] [2025-02-08 01:27:55,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:55,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:27:59,598 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-08 01:27:59,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-08 01:27:59,687 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:59,687 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:01,125 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 23 proven. 26 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2025-02-08 01:28:01,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:28:01,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983227474] [2025-02-08 01:28:01,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983227474] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:28:01,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758172507] [2025-02-08 01:28:01,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:28:01,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:28:01,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:28:01,128 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) [2025-02-08 01:28:01,129 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 [2025-02-08 01:28:05,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-08 01:28:06,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-08 01:28:06,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:28:06,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:06,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 4358 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 01:28:06,063 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:28:06,572 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2025-02-08 01:28:06,573 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:28:06,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758172507] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:28:06,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:28:06,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2025-02-08 01:28:06,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461226457] [2025-02-08 01:28:06,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:28:06,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:28:06,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:28:06,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:28:06,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-08 01:28:06,574 INFO L87 Difference]: Start difference. First operand 273 states and 374 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2025-02-08 01:28:06,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:28:06,992 INFO L93 Difference]: Finished difference Result 279 states and 379 transitions. [2025-02-08 01:28:06,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:28:06,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 147 [2025-02-08 01:28:06,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:28:06,997 INFO L225 Difference]: With dead ends: 279 [2025-02-08 01:28:06,997 INFO L226 Difference]: Without dead ends: 271 [2025-02-08 01:28:06,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-02-08 01:28:06,998 INFO L435 NwaCegarLoop]: 311 mSDtfsCounter, 3 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 01:28:06,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1525 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 01:28:06,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2025-02-08 01:28:07,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2025-02-08 01:28:07,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 148 states have (on average 1.162162162162162) internal successors, (172), 152 states have internal predecessors, (172), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (101), 94 states have call predecessors, (101), 94 states have call successors, (101) [2025-02-08 01:28:07,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 370 transitions. [2025-02-08 01:28:07,020 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 370 transitions. Word has length 147 [2025-02-08 01:28:07,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:28:07,020 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 370 transitions. [2025-02-08 01:28:07,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2025-02-08 01:28:07,021 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 370 transitions. [2025-02-08 01:28:07,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-02-08 01:28:07,022 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:28:07,022 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 3, 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] [2025-02-08 01:28:07,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 01:28:07,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:28:07,223 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:28:07,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:28:07,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1561640783, now seen corresponding path program 1 times [2025-02-08 01:28:07,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:28:07,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413319555] [2025-02-08 01:28:07,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:28:07,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:28:10,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-02-08 01:28:11,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-02-08 01:28:11,112 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:28:11,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:12,466 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 30 proven. 12 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2025-02-08 01:28:12,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:28:12,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413319555] [2025-02-08 01:28:12,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413319555] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:28:12,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020974557] [2025-02-08 01:28:12,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:28:12,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:28:12,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:28:12,473 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) [2025-02-08 01:28:12,475 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 [2025-02-08 01:28:17,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-02-08 01:28:30,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-02-08 01:28:30,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:28:30,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:30,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 4391 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 01:28:30,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:28:30,446 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2025-02-08 01:28:30,447 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:28:30,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020974557] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:28:30,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:28:30,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2025-02-08 01:28:30,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608741816] [2025-02-08 01:28:30,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:28:30,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:28:30,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:28:30,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:28:30,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:28:30,448 INFO L87 Difference]: Start difference. First operand 271 states and 370 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2025-02-08 01:28:30,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:28:30,874 INFO L93 Difference]: Finished difference Result 297 states and 397 transitions. [2025-02-08 01:28:30,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:28:30,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 150 [2025-02-08 01:28:30,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:28:30,875 INFO L225 Difference]: With dead ends: 297 [2025-02-08 01:28:30,876 INFO L226 Difference]: Without dead ends: 0 [2025-02-08 01:28:30,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:28:30,877 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-08 01:28:30,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 401 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-08 01:28:30,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-08 01:28:30,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-08 01:28:30,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:28:30,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-08 01:28:30,878 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2025-02-08 01:28:30,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:28:30,878 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 01:28:30,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2025-02-08 01:28:30,878 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-08 01:28:30,879 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-08 01:28:30,880 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-08 01:28:31,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 01:28:31,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:28:31,089 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:28:31,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-08 01:28:32,534 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 01:28:32,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 01:28:32 BoogieIcfgContainer [2025-02-08 01:28:32,546 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 01:28:32,547 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 01:28:32,547 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 01:28:32,547 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 01:28:32,547 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:27:06" (3/4) ... [2025-02-08 01:28:32,549 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 01:28:32,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2025-02-08 01:28:32,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:28:32,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure my_memset [2025-02-08 01:28:32,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure memset_impl [2025-02-08 01:28:32,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure nondet_uint8_t [2025-02-08 01:28:32,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure aws_array_list_is_bounded [2025-02-08 01:28:32,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure aws_array_list_is_valid [2025-02-08 01:28:32,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2025-02-08 01:28:32,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-02-08 01:28:32,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure aws_raise_error [2025-02-08 01:28:32,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2025-02-08 01:28:32,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_mult [2025-02-08 01:28:32,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assert_byte_from_buffer_matches [2025-02-08 01:28:32,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure nondet_size_t [2025-02-08 01:28:32,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure my_memmove [2025-02-08 01:28:32,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure memmove_impl [2025-02-08 01:28:32,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure aws_mul_size_checked [2025-02-08 01:28:32,561 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure aws_array_list_length [2025-02-08 01:28:32,561 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure aws_array_list_pop_back [2025-02-08 01:28:32,561 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-02-08 01:28:32,575 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 146 nodes and edges [2025-02-08 01:28:32,576 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 65 nodes and edges [2025-02-08 01:28:32,576 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2025-02-08 01:28:32,577 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-02-08 01:28:32,578 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-08 01:28:32,579 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 01:28:32,580 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 01:28:32,580 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges