./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d03ab2f374c74d452a3d10e43faf5dd107aad5d480e09c302467ee543678a603 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 05:19:27,161 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:19:27,225 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:19:27,230 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:19:27,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:19:27,252 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:19:27,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:19:27,253 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:19:27,254 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:19:27,254 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:19:27,254 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:19:27,254 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:19:27,254 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:19:27,254 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:19:27,254 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:19:27,255 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:19:27,255 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:19:27,255 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:19:27,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:19:27,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:19:27,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:19:27,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:19:27,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:19:27,256 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:19:27,256 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:19:27,256 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:19:27,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:19:27,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:19:27,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:19:27,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:19:27,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:19:27,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:19:27,257 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:19:27,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:19:27,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:19:27,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:19:27,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:19:27,258 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:19:27,258 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:19:27,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:19:27,258 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 -> d03ab2f374c74d452a3d10e43faf5dd107aad5d480e09c302467ee543678a603 [2025-02-06 05:19:27,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:19:27,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:19:27,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:19:27,548 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:19:27,548 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:19:27,550 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i [2025-02-06 05:19:28,845 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/655267bc7/3ad64be01b0b449c8bc32aea97ff0dff/FLAG89016ea71 [2025-02-06 05:19:29,470 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:19:29,472 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_clean_up_harness.i [2025-02-06 05:19:29,515 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/655267bc7/3ad64be01b0b449c8bc32aea97ff0dff/FLAG89016ea71 [2025-02-06 05:19:29,532 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/655267bc7/3ad64be01b0b449c8bc32aea97ff0dff [2025-02-06 05:19:29,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:19:29,536 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:19:29,538 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:19:29,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:19:29,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:19:29,543 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:19:29" (1/1) ... [2025-02-06 05:19:29,544 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3890155b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:29, skipping insertion in model container [2025-02-06 05:19:29,544 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:19:29" (1/1) ... [2025-02-06 05:19:29,636 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:19:29,867 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_priority_queue_clean_up_harness.i[4501,4514] [2025-02-06 05:19:29,875 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_priority_queue_clean_up_harness.i[4561,4574] [2025-02-06 05:19:30,484 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:30,484 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:30,485 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:30,485 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:30,486 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:30,497 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:30,498 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:30,499 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:30,500 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:30,924 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:30,925 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:30,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:19:31,019 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:19:31,033 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_priority_queue_clean_up_harness.i[4501,4514] [2025-02-06 05:19:31,034 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_priority_queue_clean_up_harness.i[4561,4574] [2025-02-06 05:19:31,103 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:31,104 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:31,104 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:31,104 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:31,104 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:31,113 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:31,114 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:31,115 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:31,115 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:31,186 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:31,186 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:31,196 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2025-02-06 05:19:31,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:19:31,439 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:19:31,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:31 WrapperNode [2025-02-06 05:19:31,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:19:31,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:19:31,442 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:19:31,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:19:31,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:31" (1/1) ... [2025-02-06 05:19:31,514 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:31" (1/1) ... [2025-02-06 05:19:31,602 INFO L138 Inliner]: procedures = 678, calls = 1509, calls flagged for inlining = 54, calls inlined = 9, statements flattened = 621 [2025-02-06 05:19:31,602 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:19:31,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:19:31,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:19:31,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:19:31,613 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:31" (1/1) ... [2025-02-06 05:19:31,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:31" (1/1) ... [2025-02-06 05:19:31,619 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:31" (1/1) ... [2025-02-06 05:19:31,679 INFO L175 MemorySlicer]: Split 296 memory accesses to 5 slices as follows [2, 238, 3, 47, 6]. 80 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 6, 1, 0, 5]. The 251 writes are split as follows [0, 232, 1, 18, 0]. [2025-02-06 05:19:31,679 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:31" (1/1) ... [2025-02-06 05:19:31,679 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:31" (1/1) ... [2025-02-06 05:19:31,704 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:31" (1/1) ... [2025-02-06 05:19:31,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:31" (1/1) ... [2025-02-06 05:19:31,713 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:31" (1/1) ... [2025-02-06 05:19:31,715 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:31" (1/1) ... [2025-02-06 05:19:31,728 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:19:31,729 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:19:31,729 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:19:31,729 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:19:31,730 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:31" (1/1) ... [2025-02-06 05:19:31,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:19:31,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:19:31,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 05:19:31,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 05:19:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-02-06 05:19:31,786 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-02-06 05:19:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 05:19:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-06 05:19:31,786 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-06 05:19:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-06 05:19:31,786 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-06 05:19:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 05:19:31,787 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 05:19:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:19:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:19:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:19:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:19:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 05:19:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:19:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:19:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:19:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:19:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 05:19:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 05:19:31,788 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 05:19:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:19:31,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:19:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:19:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:19:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:19:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:19:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:19:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:19:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 05:19:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:19:31,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:19:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_clean_up [2025-02-06 05:19:31,789 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_clean_up [2025-02-06 05:19:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:19:31,789 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:19:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-06 05:19:31,789 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-06 05:19:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 05:19:31,789 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 05:19:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 05:19:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 05:19:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-02-06 05:19:31,790 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-02-06 05:19:31,790 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:19:31,790 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-06 05:19:31,790 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 05:19:31,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:19:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:19:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:19:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 05:19:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-02-06 05:19:31,791 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-02-06 05:19:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-02-06 05:19:31,791 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-02-06 05:19:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-06 05:19:31,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-06 05:19:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:19:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:19:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:19:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:19:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 05:19:32,092 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:19:32,094 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:19:32,144 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-06 05:19:32,146 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-06 05:19:32,174 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-06 05:19:32,213 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7341: havoc #t~ret656.base, #t~ret656.offset; [2025-02-06 05:19:32,283 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7494: havoc aws_priority_queue_backpointers_valid_#t~ret686#1;havoc aws_priority_queue_backpointers_valid_#t~short687#1; [2025-02-06 05:19:32,378 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-02-06 05:19:32,382 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 05:19:38,115 INFO L? ?]: Removed 131 outVars from TransFormulas that were not future-live. [2025-02-06 05:19:38,116 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:19:38,133 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:19:38,133 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:19:38,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:19:38 BoogieIcfgContainer [2025-02-06 05:19:38,134 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:19:38,136 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:19:38,137 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:19:38,142 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:19:38,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:19:29" (1/3) ... [2025-02-06 05:19:38,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77dfdf0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:19:38, skipping insertion in model container [2025-02-06 05:19:38,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:31" (2/3) ... [2025-02-06 05:19:38,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77dfdf0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:19:38, skipping insertion in model container [2025-02-06 05:19:38,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:19:38" (3/3) ... [2025-02-06 05:19:38,146 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_clean_up_harness.i [2025-02-06 05:19:38,166 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:19:38,169 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_clean_up_harness.i that has 19 procedures, 178 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-02-06 05:19:38,246 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:19:38,259 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;@37f5e5b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:19:38,259 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 05:19:38,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 117 states have (on average 1.2478632478632479) internal successors, (146), 119 states have internal predecessors, (146), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2025-02-06 05:19:38,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-02-06 05:19:38,283 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:19:38,284 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 3, 3, 3, 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] [2025-02-06 05:19:38,285 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:19:38,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:19:38,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1926772655, now seen corresponding path program 1 times [2025-02-06 05:19:38,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:19:38,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695104052] [2025-02-06 05:19:38,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:19:38,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:19:43,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-02-06 05:19:44,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-02-06 05:19:44,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:19:44,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:19:44,603 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2025-02-06 05:19:44,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:19:44,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695104052] [2025-02-06 05:19:44,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695104052] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:19:44,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229519681] [2025-02-06 05:19:44,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:19:44,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:19:44,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:19:44,610 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:19:44,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 05:19:49,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-02-06 05:19:49,828 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-02-06 05:19:49,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:19:49,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:19:49,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 4392 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 05:19:49,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:19:49,874 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2025-02-06 05:19:49,874 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:19:49,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229519681] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:19:49,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:19:49,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 05:19:49,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173740830] [2025-02-06 05:19:49,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:19:49,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 05:19:49,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:19:49,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 05:19:49,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:19:49,912 INFO L87 Difference]: Start difference. First operand has 178 states, 117 states have (on average 1.2478632478632479) internal successors, (146), 119 states have internal predecessors, (146), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-02-06 05:19:49,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:19:49,949 INFO L93 Difference]: Finished difference Result 330 states and 441 transitions. [2025-02-06 05:19:49,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 05:19:49,951 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 132 [2025-02-06 05:19:49,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:19:49,956 INFO L225 Difference]: With dead ends: 330 [2025-02-06 05:19:49,956 INFO L226 Difference]: Without dead ends: 173 [2025-02-06 05:19:49,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:19:49,961 INFO L435 NwaCegarLoop]: 224 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, 224 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 05:19:49,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 05:19:49,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-02-06 05:19:49,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2025-02-06 05:19:50,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 113 states have (on average 1.2212389380530972) internal successors, (138), 115 states have internal predecessors, (138), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2025-02-06 05:19:50,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 219 transitions. [2025-02-06 05:19:50,010 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 219 transitions. Word has length 132 [2025-02-06 05:19:50,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:19:50,012 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 219 transitions. [2025-02-06 05:19:50,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-02-06 05:19:50,012 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 219 transitions. [2025-02-06 05:19:50,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-02-06 05:19:50,015 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:19:50,016 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:19:50,031 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 05:19:50,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 05:19:50,217 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:19:50,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:19:50,218 INFO L85 PathProgramCache]: Analyzing trace with hash 841490838, now seen corresponding path program 1 times [2025-02-06 05:19:50,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:19:50,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443371810] [2025-02-06 05:19:50,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:19:50,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:19:54,444 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-02-06 05:19:54,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-02-06 05:19:54,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:19:54,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:19:56,098 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2025-02-06 05:19:56,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:19:56,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443371810] [2025-02-06 05:19:56,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443371810] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:19:56,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:19:56,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 05:19:56,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722229776] [2025-02-06 05:19:56,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:19:56,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 05:19:56,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:19:56,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 05:19:56,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 05:19:56,101 INFO L87 Difference]: Start difference. First operand 173 states and 219 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2025-02-06 05:19:56,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:19:56,539 INFO L93 Difference]: Finished difference Result 267 states and 335 transitions. [2025-02-06 05:19:56,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 05:19:56,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 150 [2025-02-06 05:19:56,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:19:56,543 INFO L225 Difference]: With dead ends: 267 [2025-02-06 05:19:56,543 INFO L226 Difference]: Without dead ends: 173 [2025-02-06 05:19:56,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 05:19:56,546 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 6 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 797 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 [2025-02-06 05:19:56,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 797 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 05:19:56,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-02-06 05:19:56,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2025-02-06 05:19:56,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 113 states have (on average 1.2123893805309736) internal successors, (137), 115 states have internal predecessors, (137), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2025-02-06 05:19:56,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 218 transitions. [2025-02-06 05:19:56,566 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 218 transitions. Word has length 150 [2025-02-06 05:19:56,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:19:56,566 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 218 transitions. [2025-02-06 05:19:56,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2025-02-06 05:19:56,567 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 218 transitions. [2025-02-06 05:19:56,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-02-06 05:19:56,572 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:19:56,572 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:19:56,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 05:19:56,573 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:19:56,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:19:56,573 INFO L85 PathProgramCache]: Analyzing trace with hash -218992320, now seen corresponding path program 1 times [2025-02-06 05:19:56,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:19:56,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987002597] [2025-02-06 05:19:56,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:19:56,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:20:00,801 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-02-06 05:20:00,926 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-02-06 05:20:00,927 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:20:00,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:20:02,465 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2025-02-06 05:20:02,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:20:02,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987002597] [2025-02-06 05:20:02,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987002597] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:20:02,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:20:02,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 05:20:02,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581696281] [2025-02-06 05:20:02,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:20:02,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 05:20:02,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:20:02,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 05:20:02,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-06 05:20:02,468 INFO L87 Difference]: Start difference. First operand 173 states and 218 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2025-02-06 05:20:03,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:20:03,760 INFO L93 Difference]: Finished difference Result 286 states and 364 transitions. [2025-02-06 05:20:03,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 05:20:03,762 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 158 [2025-02-06 05:20:03,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:20:03,771 INFO L225 Difference]: With dead ends: 286 [2025-02-06 05:20:03,774 INFO L226 Difference]: Without dead ends: 175 [2025-02-06 05:20:03,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 05:20:03,778 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 33 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-06 05:20:03,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1139 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-06 05:20:03,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-02-06 05:20:03,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-02-06 05:20:03,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 114 states have (on average 1.2105263157894737) internal successors, (138), 117 states have internal predecessors, (138), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (42), 40 states have call predecessors, (42), 40 states have call successors, (42) [2025-02-06 05:20:03,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 221 transitions. [2025-02-06 05:20:03,803 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 221 transitions. Word has length 158 [2025-02-06 05:20:03,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:20:03,803 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 221 transitions. [2025-02-06 05:20:03,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2025-02-06 05:20:03,804 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 221 transitions. [2025-02-06 05:20:03,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-02-06 05:20:03,807 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:20:03,807 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:20:03,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 05:20:03,808 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:20:03,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:20:03,808 INFO L85 PathProgramCache]: Analyzing trace with hash 2021891928, now seen corresponding path program 1 times [2025-02-06 05:20:03,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:20:03,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050459017] [2025-02-06 05:20:03,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:20:03,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:20:07,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-02-06 05:20:07,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-02-06 05:20:07,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:20:07,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:20:09,496 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2025-02-06 05:20:09,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:20:09,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050459017] [2025-02-06 05:20:09,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050459017] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:20:09,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:20:09,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 05:20:09,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460364624] [2025-02-06 05:20:09,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:20:09,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 05:20:09,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:20:09,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 05:20:09,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 05:20:09,499 INFO L87 Difference]: Start difference. First operand 175 states and 221 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2025-02-06 05:20:10,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:20:10,709 INFO L93 Difference]: Finished difference Result 272 states and 340 transitions. [2025-02-06 05:20:10,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 05:20:10,710 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 173 [2025-02-06 05:20:10,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:20:10,714 INFO L225 Difference]: With dead ends: 272 [2025-02-06 05:20:10,714 INFO L226 Difference]: Without dead ends: 175 [2025-02-06 05:20:10,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 05:20:10,715 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 23 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-06 05:20:10,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 951 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-06 05:20:10,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-02-06 05:20:10,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-02-06 05:20:10,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 114 states have (on average 1.2017543859649122) internal successors, (137), 117 states have internal predecessors, (137), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (42), 40 states have call predecessors, (42), 40 states have call successors, (42) [2025-02-06 05:20:10,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 220 transitions. [2025-02-06 05:20:10,736 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 220 transitions. Word has length 173 [2025-02-06 05:20:10,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:20:10,737 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 220 transitions. [2025-02-06 05:20:10,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2025-02-06 05:20:10,737 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 220 transitions. [2025-02-06 05:20:10,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2025-02-06 05:20:10,740 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:20:10,740 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:20:10,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 05:20:10,741 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:20:10,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:20:10,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1498283456, now seen corresponding path program 1 times [2025-02-06 05:20:10,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:20:10,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180321163] [2025-02-06 05:20:10,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:20:10,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:20:14,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 189 statements into 1 equivalence classes. [2025-02-06 05:20:14,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 189 of 189 statements. [2025-02-06 05:20:14,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:20:14,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:20:16,472 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-02-06 05:20:16,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:20:16,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180321163] [2025-02-06 05:20:16,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180321163] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:20:16,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:20:16,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 05:20:16,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909908493] [2025-02-06 05:20:16,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:20:16,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 05:20:16,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:20:16,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 05:20:16,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-06 05:20:16,475 INFO L87 Difference]: Start difference. First operand 175 states and 220 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2025-02-06 05:20:18,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:20:18,245 INFO L93 Difference]: Finished difference Result 285 states and 358 transitions. [2025-02-06 05:20:18,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 05:20:18,246 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 189 [2025-02-06 05:20:18,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:20:18,248 INFO L225 Difference]: With dead ends: 285 [2025-02-06 05:20:18,248 INFO L226 Difference]: Without dead ends: 175 [2025-02-06 05:20:18,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-06 05:20:18,249 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 55 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-06 05:20:18,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 1275 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-06 05:20:18,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-02-06 05:20:18,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-02-06 05:20:18,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 114 states have (on average 1.2017543859649122) internal successors, (137), 117 states have internal predecessors, (137), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2025-02-06 05:20:18,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 219 transitions. [2025-02-06 05:20:18,272 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 219 transitions. Word has length 189 [2025-02-06 05:20:18,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:20:18,273 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 219 transitions. [2025-02-06 05:20:18,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2025-02-06 05:20:18,273 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 219 transitions. [2025-02-06 05:20:18,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2025-02-06 05:20:18,276 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:20:18,277 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:20:18,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 05:20:18,277 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:20:18,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:20:18,277 INFO L85 PathProgramCache]: Analyzing trace with hash -2034790876, now seen corresponding path program 1 times [2025-02-06 05:20:18,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:20:18,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523926413] [2025-02-06 05:20:18,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:20:18,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:20:22,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 204 statements into 1 equivalence classes. [2025-02-06 05:20:22,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 204 of 204 statements. [2025-02-06 05:20:22,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:20:22,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:20:24,266 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2025-02-06 05:20:24,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:20:24,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523926413] [2025-02-06 05:20:24,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523926413] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:20:24,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:20:24,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 05:20:24,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344002972] [2025-02-06 05:20:24,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:20:24,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 05:20:24,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:20:24,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 05:20:24,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 05:20:24,268 INFO L87 Difference]: Start difference. First operand 175 states and 219 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2025-02-06 05:20:24,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:20:24,774 INFO L93 Difference]: Finished difference Result 272 states and 338 transitions. [2025-02-06 05:20:24,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 05:20:24,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 204 [2025-02-06 05:20:24,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:20:24,777 INFO L225 Difference]: With dead ends: 272 [2025-02-06 05:20:24,777 INFO L226 Difference]: Without dead ends: 175 [2025-02-06 05:20:24,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 05:20:24,779 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 6 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 05:20:24,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1043 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 05:20:24,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-02-06 05:20:24,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-02-06 05:20:24,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 114 states have (on average 1.1929824561403508) internal successors, (136), 117 states have internal predecessors, (136), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2025-02-06 05:20:24,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 218 transitions. [2025-02-06 05:20:24,789 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 218 transitions. Word has length 204 [2025-02-06 05:20:24,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:20:24,790 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 218 transitions. [2025-02-06 05:20:24,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2025-02-06 05:20:24,790 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 218 transitions. [2025-02-06 05:20:24,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2025-02-06 05:20:24,793 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:20:24,793 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:20:24,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 05:20:24,793 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:20:24,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:20:24,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1035517569, now seen corresponding path program 1 times [2025-02-06 05:20:24,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:20:24,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262900998] [2025-02-06 05:20:24,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:20:24,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:20:28,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 205 statements into 1 equivalence classes. [2025-02-06 05:20:29,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 205 of 205 statements. [2025-02-06 05:20:29,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:20:29,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:20:31,760 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2025-02-06 05:20:31,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:20:31,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262900998] [2025-02-06 05:20:31,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262900998] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:20:31,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:20:31,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 05:20:31,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025333832] [2025-02-06 05:20:31,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:20:31,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 05:20:31,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:20:31,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 05:20:31,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 05:20:31,762 INFO L87 Difference]: Start difference. First operand 175 states and 218 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2025-02-06 05:20:32,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:20:32,130 INFO L93 Difference]: Finished difference Result 185 states and 232 transitions. [2025-02-06 05:20:32,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 05:20:32,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 205 [2025-02-06 05:20:32,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:20:32,133 INFO L225 Difference]: With dead ends: 185 [2025-02-06 05:20:32,133 INFO L226 Difference]: Without dead ends: 183 [2025-02-06 05:20:32,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 05:20:32,134 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 3 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 05:20:32,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1060 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 05:20:32,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2025-02-06 05:20:32,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 182. [2025-02-06 05:20:32,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 118 states have (on average 1.1864406779661016) internal successors, (140), 122 states have internal predecessors, (140), 42 states have call successors, (42), 19 states have call predecessors, (42), 21 states have return successors, (47), 41 states have call predecessors, (47), 41 states have call successors, (47) [2025-02-06 05:20:32,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 229 transitions. [2025-02-06 05:20:32,146 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 229 transitions. Word has length 205 [2025-02-06 05:20:32,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:20:32,146 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 229 transitions. [2025-02-06 05:20:32,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2025-02-06 05:20:32,147 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 229 transitions. [2025-02-06 05:20:32,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2025-02-06 05:20:32,149 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:20:32,149 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:20:32,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 05:20:32,149 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:20:32,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:20:32,150 INFO L85 PathProgramCache]: Analyzing trace with hash 274263057, now seen corresponding path program 1 times [2025-02-06 05:20:32,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:20:32,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846076805] [2025-02-06 05:20:32,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:20:32,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:20:36,115 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 206 statements into 1 equivalence classes. [2025-02-06 05:20:37,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 206 of 206 statements. [2025-02-06 05:20:37,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:20:37,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:20:39,479 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 05:20:39,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:20:39,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846076805] [2025-02-06 05:20:39,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846076805] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:20:39,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123943468] [2025-02-06 05:20:39,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:20:39,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:20:39,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:20:39,493 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:20:39,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 05:20:44,681 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 206 statements into 1 equivalence classes. [2025-02-06 05:20:45,281 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 206 of 206 statements. [2025-02-06 05:20:45,282 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:20:45,282 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:20:45,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 4853 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-06 05:20:45,315 INFO L279 TraceCheckSpWp]: Computing forward predicates...