./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness_negated.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_top_harness_negated.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cddb8be3317e9d6bf2e67633b62d21b872e62a4205c204f682a628045c0c7f11 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 05:22:43,068 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:22:43,139 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:22:43,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:22:43,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:22:43,172 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:22:43,174 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:22:43,174 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:22:43,174 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:22:43,175 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:22:43,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:22:43,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:22:43,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:22:43,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:22:43,177 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:22:43,177 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:22:43,177 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:22:43,177 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:22:43,177 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:22:43,177 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:22:43,178 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:22:43,178 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:22:43,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:22:43,178 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:22:43,178 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:22:43,178 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:22:43,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:22:43,179 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:22:43,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:22:43,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:22:43,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:22:43,180 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:22:43,180 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:22:43,180 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:22:43,180 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:22:43,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:22:43,180 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:22:43,180 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:22:43,181 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:22:43,181 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:22:43,181 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 -> cddb8be3317e9d6bf2e67633b62d21b872e62a4205c204f682a628045c0c7f11 [2025-02-06 05:22:43,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:22:43,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:22:43,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:22:43,460 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:22:43,461 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:22:43,463 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness_negated.i [2025-02-06 05:22:44,736 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4b9a09e13/65ccb0a1c13349b08ae4677531f9f448/FLAG8408e483a [2025-02-06 05:22:45,348 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:22:45,349 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness_negated.i [2025-02-06 05:22:45,384 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4b9a09e13/65ccb0a1c13349b08ae4677531f9f448/FLAG8408e483a [2025-02-06 05:22:45,402 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4b9a09e13/65ccb0a1c13349b08ae4677531f9f448 [2025-02-06 05:22:45,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:22:45,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:22:45,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:22:45,407 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:22:45,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:22:45,413 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:22:45" (1/1) ... [2025-02-06 05:22:45,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@791212dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:45, skipping insertion in model container [2025-02-06 05:22:45,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:22:45" (1/1) ... [2025-02-06 05:22:45,502 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:22:45,794 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_top_harness_negated.i[4496,4509] [2025-02-06 05:22:45,803 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_top_harness_negated.i[4556,4569] [2025-02-06 05:22:46,504 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:46,505 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:46,505 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:46,507 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:46,507 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:46,522 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:46,522 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:46,525 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:46,525 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:46,900 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:46,900 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:46,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:22:46,981 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:22:46,994 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_top_harness_negated.i[4496,4509] [2025-02-06 05:22:46,995 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_top_harness_negated.i[4556,4569] [2025-02-06 05:22:47,060 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:47,060 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:47,061 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:47,061 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:47,061 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:47,067 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:47,068 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:47,069 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:47,069 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:47,183 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:47,186 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:47,196 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7671-7682] [2025-02-06 05:22:47,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:22:47,458 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:22:47,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:47 WrapperNode [2025-02-06 05:22:47,462 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:22:47,463 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:22:47,463 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:22:47,463 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:22:47,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:47" (1/1) ... [2025-02-06 05:22:47,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:47" (1/1) ... [2025-02-06 05:22:47,585 INFO L138 Inliner]: procedures = 678, calls = 1548, calls flagged for inlining = 54, calls inlined = 10, statements flattened = 726 [2025-02-06 05:22:47,586 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:22:47,587 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:22:47,587 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:22:47,587 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:22:47,596 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:47" (1/1) ... [2025-02-06 05:22:47,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:47" (1/1) ... [2025-02-06 05:22:47,608 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:47" (1/1) ... [2025-02-06 05:22:47,690 INFO L175 MemorySlicer]: Split 340 memory accesses to 7 slices as follows [238, 2, 2, 82, 6, 7, 3]. 70 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [6, 2, 1, 10, 0, 5, 1]. The 253 writes are split as follows [232, 0, 1, 17, 2, 0, 1]. [2025-02-06 05:22:47,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:47" (1/1) ... [2025-02-06 05:22:47,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:47" (1/1) ... [2025-02-06 05:22:47,726 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:47" (1/1) ... [2025-02-06 05:22:47,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:47" (1/1) ... [2025-02-06 05:22:47,735 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:47" (1/1) ... [2025-02-06 05:22:47,738 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:47" (1/1) ... [2025-02-06 05:22:47,749 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:22:47,750 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:22:47,750 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:22:47,750 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:22:47,751 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:47" (1/1) ... [2025-02-06 05:22:47,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:22:47,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:22:47,785 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 05:22:47,789 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 05:22:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-02-06 05:22:47,812 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-02-06 05:22:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 05:22:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-06 05:22:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-06 05:22:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-06 05:22:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-06 05:22:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 05:22:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 05:22:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:22:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:22:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:22:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:22:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 05:22:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 05:22:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-06 05:22:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:22:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:22:47,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:22:47,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:22:47,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 05:22:47,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 05:22:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 05:22:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 05:22:47,817 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 05:22:47,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:22:47,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:22:47,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:22:47,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:22:47,817 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-02-06 05:22:47,817 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-02-06 05:22:47,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:22:47,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:22:47,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:22:47,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:22:47,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 05:22:47,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 05:22:47,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-06 05:22:47,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:22:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:22:47,819 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:22:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:22:47,820 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-06 05:22:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-06 05:22:47,820 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-06 05:22:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-06 05:22:47,820 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 05:22:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 05:22:47,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 05:22:47,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 05:22:47,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 05:22:47,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 05:22:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 05:22:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 05:22:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-06 05:22:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-02-06 05:22:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-02-06 05:22:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-06 05:22:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-06 05:22:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:22:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:22:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 05:22:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 05:22:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 05:22:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 05:22:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 05:22:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 05:22:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 05:22:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-06 05:22:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:22:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:22:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:22:47,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-06 05:22:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 05:22:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2025-02-06 05:22:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-06 05:22:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 05:22:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 05:22:48,142 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:22:48,145 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:22:48,190 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-06 05:22:48,254 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-06 05:22:48,275 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-06 05:22:48,411 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7462: havoc aws_priority_queue_backpointers_valid_#t~ret686#1;havoc aws_priority_queue_backpointers_valid_#t~short687#1; [2025-02-06 05:22:48,485 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 05:22:48,489 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 05:22:54,033 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7497-2: havoc aws_priority_queue_top_#t~ret693#1; [2025-02-06 05:22:54,034 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3509: havoc aws_array_list_get_at_ptr_#t~ret274#1; [2025-02-06 05:22:54,034 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7498: havoc aws_priority_queue_top_#t~ret694#1; [2025-02-06 05:22:54,123 INFO L? ?]: Removed 160 outVars from TransFormulas that were not future-live. [2025-02-06 05:22:54,123 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:22:54,137 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:22:54,138 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:22:54,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:22:54 BoogieIcfgContainer [2025-02-06 05:22:54,138 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:22:54,143 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:22:54,143 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:22:54,147 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:22:54,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:22:45" (1/3) ... [2025-02-06 05:22:54,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16af2543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:22:54, skipping insertion in model container [2025-02-06 05:22:54,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:47" (2/3) ... [2025-02-06 05:22:54,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16af2543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:22:54, skipping insertion in model container [2025-02-06 05:22:54,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:22:54" (3/3) ... [2025-02-06 05:22:54,151 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_top_harness_negated.i [2025-02-06 05:22:54,166 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:22:54,169 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_top_harness_negated.i that has 19 procedures, 207 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-02-06 05:22:54,251 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:22:54,261 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@42308476, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:22:54,262 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 05:22:54,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 207 states, 130 states have (on average 1.2230769230769232) internal successors, (159), 131 states have internal predecessors, (159), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2025-02-06 05:22:54,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-02-06 05:22:54,285 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:22:54,286 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 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] [2025-02-06 05:22:54,286 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:22:54,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:22:54,294 INFO L85 PathProgramCache]: Analyzing trace with hash -2064878293, now seen corresponding path program 1 times [2025-02-06 05:22:54,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:22:54,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5125006] [2025-02-06 05:22:54,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:22:54,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:23:00,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-02-06 05:23:00,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-02-06 05:23:00,501 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:23:00,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:23:01,064 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-02-06 05:23:01,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:23:01,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5125006] [2025-02-06 05:23:01,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5125006] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:23:01,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176485008] [2025-02-06 05:23:01,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:23:01,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:23:01,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:23:01,072 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 05:23:01,074 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 05:23:06,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-02-06 05:23:07,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-02-06 05:23:07,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:23:07,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:23:07,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 4581 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 05:23:07,049 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:23:07,069 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-02-06 05:23:07,069 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:23:07,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176485008] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:23:07,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:23:07,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 05:23:07,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590340486] [2025-02-06 05:23:07,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:23:07,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 05:23:07,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:23:07,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 05:23:07,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:23:07,109 INFO L87 Difference]: Start difference. First operand has 207 states, 130 states have (on average 1.2230769230769232) internal successors, (159), 131 states have internal predecessors, (159), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2025-02-06 05:23:07,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:23:07,160 INFO L93 Difference]: Finished difference Result 391 states and 545 transitions. [2025-02-06 05:23:07,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 05:23:07,162 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 149 [2025-02-06 05:23:07,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:23:07,171 INFO L225 Difference]: With dead ends: 391 [2025-02-06 05:23:07,171 INFO L226 Difference]: Without dead ends: 202 [2025-02-06 05:23:07,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 150 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 05:23:07,180 INFO L435 NwaCegarLoop]: 269 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, 269 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 05:23:07,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 05:23:07,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2025-02-06 05:23:07,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2025-02-06 05:23:07,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 126 states have (on average 1.1984126984126984) internal successors, (151), 127 states have internal predecessors, (151), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2025-02-06 05:23:07,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 264 transitions. [2025-02-06 05:23:07,257 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 264 transitions. Word has length 149 [2025-02-06 05:23:07,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:23:07,258 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 264 transitions. [2025-02-06 05:23:07,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2025-02-06 05:23:07,259 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 264 transitions. [2025-02-06 05:23:07,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-02-06 05:23:07,262 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:23:07,262 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 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] [2025-02-06 05:23:07,281 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 05:23:07,463 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 05:23:07,463 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:23:07,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:23:07,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1566371316, now seen corresponding path program 1 times [2025-02-06 05:23:07,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:23:07,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476634322] [2025-02-06 05:23:07,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:23:07,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:23:11,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-02-06 05:23:11,808 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-02-06 05:23:11,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:23:11,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:23:13,230 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2025-02-06 05:23:13,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:23:13,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476634322] [2025-02-06 05:23:13,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476634322] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:23:13,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:23:13,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 05:23:13,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063646272] [2025-02-06 05:23:13,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:23:13,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 05:23:13,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:23:13,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 05:23:13,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 05:23:13,235 INFO L87 Difference]: Start difference. First operand 202 states and 264 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2025-02-06 05:23:13,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:23:13,847 INFO L93 Difference]: Finished difference Result 355 states and 464 transitions. [2025-02-06 05:23:13,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 05:23:13,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 149 [2025-02-06 05:23:13,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:23:13,854 INFO L225 Difference]: With dead ends: 355 [2025-02-06 05:23:13,854 INFO L226 Difference]: Without dead ends: 202 [2025-02-06 05:23:13,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 05:23:13,859 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 20 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-06 05:23:13,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 941 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-06 05:23:13,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2025-02-06 05:23:13,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2025-02-06 05:23:13,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 126 states have (on average 1.1904761904761905) internal successors, (150), 127 states have internal predecessors, (150), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2025-02-06 05:23:13,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 263 transitions. [2025-02-06 05:23:13,878 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 263 transitions. Word has length 149 [2025-02-06 05:23:13,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:23:13,878 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 263 transitions. [2025-02-06 05:23:13,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2025-02-06 05:23:13,879 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 263 transitions. [2025-02-06 05:23:13,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-02-06 05:23:13,881 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:23:13,882 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 3, 3, 3, 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] [2025-02-06 05:23:13,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 05:23:13,882 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:23:13,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:23:13,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1933293102, now seen corresponding path program 1 times [2025-02-06 05:23:13,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:23:13,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686384387] [2025-02-06 05:23:13,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:23:13,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:23:17,832 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-02-06 05:23:18,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-02-06 05:23:18,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:23:18,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:23:19,650 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2025-02-06 05:23:19,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:23:19,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686384387] [2025-02-06 05:23:19,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686384387] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:23:19,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407323596] [2025-02-06 05:23:19,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:23:19,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:23:19,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:23:19,654 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 05:23:19,655 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 05:23:23,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-02-06 05:23:24,252 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-02-06 05:23:24,252 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:23:24,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:23:24,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 4631 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 05:23:24,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:23:25,935 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2025-02-06 05:23:25,936 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:23:25,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407323596] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:23:25,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:23:25,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-02-06 05:23:25,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589826002] [2025-02-06 05:23:25,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:23:25,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 05:23:25,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:23:25,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 05:23:25,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 05:23:25,938 INFO L87 Difference]: Start difference. First operand 202 states and 263 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2025-02-06 05:23:30,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:23:30,342 INFO L93 Difference]: Finished difference Result 374 states and 496 transitions. [2025-02-06 05:23:30,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 05:23:30,343 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 157 [2025-02-06 05:23:30,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:23:30,346 INFO L225 Difference]: With dead ends: 374 [2025-02-06 05:23:30,346 INFO L226 Difference]: Without dead ends: 204 [2025-02-06 05:23:30,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2025-02-06 05:23:30,348 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 299 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2025-02-06 05:23:30,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 1194 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2025-02-06 05:23:30,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2025-02-06 05:23:30,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2025-02-06 05:23:30,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 127 states have (on average 1.188976377952756) internal successors, (151), 129 states have internal predecessors, (151), 57 states have call successors, (57), 18 states have call predecessors, (57), 19 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2025-02-06 05:23:30,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 270 transitions. [2025-02-06 05:23:30,366 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 270 transitions. Word has length 157 [2025-02-06 05:23:30,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:23:30,367 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 270 transitions. [2025-02-06 05:23:30,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2025-02-06 05:23:30,367 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 270 transitions. [2025-02-06 05:23:30,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2025-02-06 05:23:30,369 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:23:30,369 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:23:30,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 05:23:30,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:23:30,570 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:23:30,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:23:30,571 INFO L85 PathProgramCache]: Analyzing trace with hash 354549867, now seen corresponding path program 1 times [2025-02-06 05:23:30,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:23:30,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946274995] [2025-02-06 05:23:30,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:23:30,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:23:34,446 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 172 statements into 1 equivalence classes. [2025-02-06 05:23:34,635 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 172 of 172 statements. [2025-02-06 05:23:34,638 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:23:34,638 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:23:36,086 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2025-02-06 05:23:36,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:23:36,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946274995] [2025-02-06 05:23:36,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946274995] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:23:36,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:23:36,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 05:23:36,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951895642] [2025-02-06 05:23:36,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:23:36,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 05:23:36,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:23:36,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 05:23:36,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 05:23:36,089 INFO L87 Difference]: Start difference. First operand 204 states and 270 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2025-02-06 05:23:37,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:23:37,642 INFO L93 Difference]: Finished difference Result 360 states and 477 transitions. [2025-02-06 05:23:37,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 05:23:37,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 172 [2025-02-06 05:23:37,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:23:37,645 INFO L225 Difference]: With dead ends: 360 [2025-02-06 05:23:37,645 INFO L226 Difference]: Without dead ends: 204 [2025-02-06 05:23:37,646 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 05:23:37,647 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 37 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-02-06 05:23:37,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 1136 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-02-06 05:23:37,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2025-02-06 05:23:37,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2025-02-06 05:23:37,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 127 states have (on average 1.1811023622047243) internal successors, (150), 129 states have internal predecessors, (150), 57 states have call successors, (57), 18 states have call predecessors, (57), 19 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2025-02-06 05:23:37,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 269 transitions. [2025-02-06 05:23:37,665 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 269 transitions. Word has length 172 [2025-02-06 05:23:37,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:23:37,665 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 269 transitions. [2025-02-06 05:23:37,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2025-02-06 05:23:37,665 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 269 transitions. [2025-02-06 05:23:37,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-02-06 05:23:37,667 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:23:37,668 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1] [2025-02-06 05:23:37,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 05:23:37,668 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:23:37,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:23:37,669 INFO L85 PathProgramCache]: Analyzing trace with hash -21873166, now seen corresponding path program 1 times [2025-02-06 05:23:37,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:23:37,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150589797] [2025-02-06 05:23:37,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:23:37,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:23:41,339 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-02-06 05:23:41,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-02-06 05:23:41,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:23:41,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:23:43,180 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2025-02-06 05:23:43,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:23:43,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150589797] [2025-02-06 05:23:43,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150589797] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:23:43,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092619596] [2025-02-06 05:23:43,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:23:43,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:23:43,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:23:43,183 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:23:43,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 05:23:47,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-02-06 05:23:47,946 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-02-06 05:23:47,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:23:47,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:23:47,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 4825 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 05:23:47,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:23:50,034 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-02-06 05:23:50,034 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:23:50,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092619596] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:23:50,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:23:50,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2025-02-06 05:23:50,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59387870] [2025-02-06 05:23:50,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:23:50,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 05:23:50,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:23:50,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 05:23:50,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-02-06 05:23:50,036 INFO L87 Difference]: Start difference. First operand 204 states and 269 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2025-02-06 05:23:55,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:23:55,279 INFO L93 Difference]: Finished difference Result 373 states and 494 transitions. [2025-02-06 05:23:55,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 05:23:55,280 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 188 [2025-02-06 05:23:55,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:23:55,283 INFO L225 Difference]: With dead ends: 373 [2025-02-06 05:23:55,283 INFO L226 Difference]: Without dead ends: 204 [2025-02-06 05:23:55,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2025-02-06 05:23:55,284 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 316 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-02-06 05:23:55,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1323 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2025-02-06 05:23:55,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2025-02-06 05:23:55,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2025-02-06 05:23:55,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 127 states have (on average 1.1811023622047243) internal successors, (150), 129 states have internal predecessors, (150), 57 states have call successors, (57), 18 states have call predecessors, (57), 19 states have return successors, (61), 56 states have call predecessors, (61), 56 states have call successors, (61) [2025-02-06 05:23:55,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 268 transitions. [2025-02-06 05:23:55,301 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 268 transitions. Word has length 188 [2025-02-06 05:23:55,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:23:55,301 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 268 transitions. [2025-02-06 05:23:55,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2025-02-06 05:23:55,302 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 268 transitions. [2025-02-06 05:23:55,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-02-06 05:23:55,304 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:23:55,304 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 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, 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] [2025-02-06 05:23:55,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 05:23:55,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:23:55,505 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:23:55,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:23:55,508 INFO L85 PathProgramCache]: Analyzing trace with hash 632842813, now seen corresponding path program 2 times [2025-02-06 05:23:55,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:23:55,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111202722] [2025-02-06 05:23:55,508 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 05:23:55,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:23:58,911 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 203 statements into 2 equivalence classes. [2025-02-06 05:23:59,021 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 28 of 203 statements. [2025-02-06 05:23:59,021 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 05:23:59,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:24:01,269 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2025-02-06 05:24:01,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:24:01,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111202722] [2025-02-06 05:24:01,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111202722] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:24:01,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:24:01,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 05:24:01,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943031572] [2025-02-06 05:24:01,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:24:01,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 05:24:01,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:24:01,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 05:24:01,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 05:24:01,271 INFO L87 Difference]: Start difference. First operand 204 states and 268 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2025-02-06 05:24:01,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:24:01,638 INFO L93 Difference]: Finished difference Result 212 states and 276 transitions. [2025-02-06 05:24:01,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 05:24:01,639 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 203 [2025-02-06 05:24:01,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:24:01,641 INFO L225 Difference]: With dead ends: 212 [2025-02-06 05:24:01,641 INFO L226 Difference]: Without dead ends: 210 [2025-02-06 05:24:01,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 05:24:01,642 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 3 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 05:24:01,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1283 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 05:24:01,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2025-02-06 05:24:01,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209. [2025-02-06 05:24:01,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 130 states have (on average 1.176923076923077) internal successors, (153), 132 states have internal predecessors, (153), 58 states have call successors, (58), 19 states have call predecessors, (58), 20 states have return successors, (62), 57 states have call predecessors, (62), 57 states have call successors, (62) [2025-02-06 05:24:01,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 273 transitions. [2025-02-06 05:24:01,663 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 273 transitions. Word has length 203 [2025-02-06 05:24:01,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:24:01,665 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 273 transitions. [2025-02-06 05:24:01,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2025-02-06 05:24:01,666 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 273 transitions. [2025-02-06 05:24:01,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2025-02-06 05:24:01,669 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:24:01,669 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-02-06 05:24:01,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 05:24:01,669 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:24:01,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:24:01,670 INFO L85 PathProgramCache]: Analyzing trace with hash -941475428, now seen corresponding path program 3 times [2025-02-06 05:24:01,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:24:01,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069404289] [2025-02-06 05:24:01,670 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 05:24:01,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:24:05,151 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 218 statements into 7 equivalence classes.