./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 02a1ef197fe295e0adddb84ae3aa2db56396688008aeca91e1ab4b161b42690c --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 05:19:49,307 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:19:49,380 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:19:49,388 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:19:49,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:19:49,408 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:19:49,409 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:19:49,409 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:19:49,410 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:19:49,410 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:19:49,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:19:49,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:19:49,410 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:19:49,410 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:19:49,411 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:19:49,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:19:49,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:19:49,411 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:19:49,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:19:49,411 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:19:49,411 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:19:49,411 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:19:49,414 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:19:49,414 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:19:49,414 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:19:49,414 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:19:49,415 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:19:49,415 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:19:49,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:19:49,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:19:49,415 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:19:49,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:19:49,415 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:19:49,415 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:19:49,415 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:19:49,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:19:49,415 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:19:49,415 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:19:49,416 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:19:49,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:19:49,416 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 -> 02a1ef197fe295e0adddb84ae3aa2db56396688008aeca91e1ab4b161b42690c [2025-02-06 05:19:49,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:19:49,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:19:49,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:19:49,758 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:19:49,759 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:19:49,760 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2025-02-06 05:19:51,076 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/639c1a708/23642d9958ba4d17b7a57613d19faafe/FLAGe04ccac6e [2025-02-06 05:19:51,569 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:19:51,570 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2025-02-06 05:19:51,603 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/639c1a708/23642d9958ba4d17b7a57613d19faafe/FLAGe04ccac6e [2025-02-06 05:19:51,648 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/639c1a708/23642d9958ba4d17b7a57613d19faafe [2025-02-06 05:19:51,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:19:51,654 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:19:51,656 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:19:51,657 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:19:51,660 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:19:51,661 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:19:51" (1/1) ... [2025-02-06 05:19:51,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@158ae3c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:51, skipping insertion in model container [2025-02-06 05:19:51,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:19:51" (1/1) ... [2025-02-06 05:19:51,751 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:19:52,045 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_init_dynamic_harness.i[4505,4518] [2025-02-06 05:19:52,055 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_init_dynamic_harness.i[4565,4578] [2025-02-06 05:19:53,185 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:53,186 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:53,186 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:53,187 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:53,188 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:53,198 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:53,199 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:53,200 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:53,201 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:53,980 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:53,980 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:54,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:19:54,102 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:19:54,117 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_init_dynamic_harness.i[4505,4518] [2025-02-06 05:19:54,118 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_init_dynamic_harness.i[4565,4578] [2025-02-06 05:19:54,181 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:54,182 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:54,182 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:54,183 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:54,183 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:54,189 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:54,190 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:54,191 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:54,191 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:54,290 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:54,294 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:19:54,301 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2025-02-06 05:19:54,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:19:54,540 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:19:54,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:54 WrapperNode [2025-02-06 05:19:54,541 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:19:54,542 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:19:54,543 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:19:54,543 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:19:54,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:54" (1/1) ... [2025-02-06 05:19:54,632 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:54" (1/1) ... [2025-02-06 05:19:54,701 INFO L138 Inliner]: procedures = 678, calls = 1530, calls flagged for inlining = 52, calls inlined = 9, statements flattened = 763 [2025-02-06 05:19:54,702 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:19:54,703 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:19:54,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:19:54,703 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:19:54,716 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:54" (1/1) ... [2025-02-06 05:19:54,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:54" (1/1) ... [2025-02-06 05:19:54,724 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:54" (1/1) ... [2025-02-06 05:19:54,813 INFO L175 MemorySlicer]: Split 301 memory accesses to 5 slices as follows [2, 238, 48, 8, 5]. 79 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 6, 0, 2, 5]. The 252 writes are split as follows [0, 232, 19, 1, 0]. [2025-02-06 05:19:54,813 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:54" (1/1) ... [2025-02-06 05:19:54,813 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:54" (1/1) ... [2025-02-06 05:19:54,863 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:54" (1/1) ... [2025-02-06 05:19:54,865 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:54" (1/1) ... [2025-02-06 05:19:54,872 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:54" (1/1) ... [2025-02-06 05:19:54,877 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:54" (1/1) ... [2025-02-06 05:19:54,890 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:19:54,891 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:19:54,891 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:19:54,892 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:19:54,892 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:54" (1/1) ... [2025-02-06 05:19:54,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:19:54,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:19:54,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 05:19:54,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 05:19:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-02-06 05:19:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-02-06 05:19:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 05:19:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-06 05:19:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-06 05:19:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 05:19:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 05:19:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2025-02-06 05:19:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2025-02-06 05:19:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:19:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:19:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:19:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:19:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 05:19:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:19:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:19:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:19:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:19:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 05:19:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 05:19:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 05:19:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:19:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:19:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:19:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:19:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:19:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:19:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:19:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:19:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 05:19:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:19:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:19:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:19:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:19:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-06 05:19:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-06 05:19:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 05:19:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 05:19:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 05:19:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 05:19:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 05:19:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 05:19:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 05:19:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-02-06 05:19:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-02-06 05:19:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-02-06 05:19:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:19:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-06 05:19:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 05:19:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 05:19:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-02-06 05:19:54,970 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-02-06 05:19:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-02-06 05:19:54,970 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-02-06 05:19:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:19:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:19:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:19:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:19:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 05:19:55,321 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:19:55,324 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:19:55,372 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-06 05:19:55,376 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-06 05:19:55,417 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-06 05:19:55,482 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2796: havoc #t~ret81;havoc #t~ite83.base, #t~ite83.offset;havoc #t~ret82.base, #t~ret82.offset; [2025-02-06 05:19:55,492 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7341: havoc #t~ret656.base, #t~ret656.offset; [2025-02-06 05:19:55,605 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7494: havoc aws_priority_queue_backpointers_valid_#t~ret686#1;havoc aws_priority_queue_backpointers_valid_#t~short687#1; [2025-02-06 05:19:55,643 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-02-06 05:19:55,647 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 05:19:55,660 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2821: havoc #t~ret89.base, #t~ret89.offset; [2025-02-06 05:20:02,784 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3202: call ULTIMATE.dealloc(aws_array_list_init_dynamic_~#allocation_size~0#1.base, aws_array_list_init_dynamic_~#allocation_size~0#1.offset);havoc aws_array_list_init_dynamic_~#allocation_size~0#1.base, aws_array_list_init_dynamic_~#allocation_size~0#1.offset; [2025-02-06 05:20:02,880 INFO L? ?]: Removed 150 outVars from TransFormulas that were not future-live. [2025-02-06 05:20:02,880 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:20:02,900 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:20:02,900 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:20:02,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:20:02 BoogieIcfgContainer [2025-02-06 05:20:02,901 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:20:02,904 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:20:02,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:20:02,910 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:20:02,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:19:51" (1/3) ... [2025-02-06 05:20:02,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bdc651e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:20:02, skipping insertion in model container [2025-02-06 05:20:02,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:19:54" (2/3) ... [2025-02-06 05:20:02,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bdc651e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:20:02, skipping insertion in model container [2025-02-06 05:20:02,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:20:02" (3/3) ... [2025-02-06 05:20:02,916 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness.i [2025-02-06 05:20:02,932 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:20:02,934 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_init_dynamic_harness.i that has 17 procedures, 217 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-02-06 05:20:03,004 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:20:03,016 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;@6b4c77e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:20:03,018 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 05:20:03,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 217 states, 137 states have (on average 1.2481751824817517) internal successors, (171), 139 states have internal predecessors, (171), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2025-02-06 05:20:03,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-02-06 05:20:03,037 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:20:03,038 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 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] [2025-02-06 05:20:03,039 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:20:03,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:20:03,045 INFO L85 PathProgramCache]: Analyzing trace with hash -772505565, now seen corresponding path program 1 times [2025-02-06 05:20:03,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:20:03,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575304463] [2025-02-06 05:20:03,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:20:03,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:20:09,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-06 05:20:09,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-06 05:20:09,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:20:09,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:20:10,106 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2025-02-06 05:20:10,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:20:10,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575304463] [2025-02-06 05:20:10,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575304463] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:20:10,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807579919] [2025-02-06 05:20:10,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:20:10,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:20:10,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:20:10,114 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 05:20:10,116 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 05:20:14,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-06 05:20:15,619 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-06 05:20:15,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:20:15,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:20:15,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 4418 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 05:20:15,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:20:15,686 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2025-02-06 05:20:15,690 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:20:15,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807579919] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:20:15,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:20:15,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 05:20:15,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407779432] [2025-02-06 05:20:15,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:20:15,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 05:20:15,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:20:15,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 05:20:15,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:20:15,727 INFO L87 Difference]: Start difference. First operand has 217 states, 137 states have (on average 1.2481751824817517) internal successors, (171), 139 states have internal predecessors, (171), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-02-06 05:20:15,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:20:15,781 INFO L93 Difference]: Finished difference Result 408 states and 586 transitions. [2025-02-06 05:20:15,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 05:20:15,783 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 144 [2025-02-06 05:20:15,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:20:15,793 INFO L225 Difference]: With dead ends: 408 [2025-02-06 05:20:15,793 INFO L226 Difference]: Without dead ends: 210 [2025-02-06 05:20:15,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 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 05:20:15,800 INFO L435 NwaCegarLoop]: 289 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, 289 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 05:20:15,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 05:20:15,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2025-02-06 05:20:15,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2025-02-06 05:20:15,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 131 states have (on average 1.213740458015267) internal successors, (159), 133 states have internal predecessors, (159), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2025-02-06 05:20:15,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 281 transitions. [2025-02-06 05:20:15,872 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 281 transitions. Word has length 144 [2025-02-06 05:20:15,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:20:15,873 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 281 transitions. [2025-02-06 05:20:15,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-02-06 05:20:15,874 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 281 transitions. [2025-02-06 05:20:15,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-02-06 05:20:15,876 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:20:15,877 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 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] [2025-02-06 05:20:15,897 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 05:20:16,081 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 05:20:16,081 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:20:16,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:20:16,082 INFO L85 PathProgramCache]: Analyzing trace with hash -497888093, now seen corresponding path program 1 times [2025-02-06 05:20:16,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:20:16,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134240823] [2025-02-06 05:20:16,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:20:16,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:20:20,753 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-02-06 05:20:21,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-02-06 05:20:21,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:20:21,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:20:23,400 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2025-02-06 05:20:23,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:20:23,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134240823] [2025-02-06 05:20:23,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134240823] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:20:23,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139114641] [2025-02-06 05:20:23,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:20:23,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:20:23,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:20:23,404 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:20:23,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 05:20:27,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-02-06 05:20:28,500 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-02-06 05:20:28,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:20:28,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:20:28,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 4568 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 05:20:28,538 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:20:29,112 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2025-02-06 05:20:29,112 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:20:29,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139114641] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:20:29,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:20:29,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2025-02-06 05:20:29,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789291387] [2025-02-06 05:20:29,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:20:29,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 05:20:29,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:20:29,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 05:20:29,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 05:20:29,115 INFO L87 Difference]: Start difference. First operand 210 states and 281 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-02-06 05:20:29,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:20:29,723 INFO L93 Difference]: Finished difference Result 387 states and 512 transitions. [2025-02-06 05:20:29,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 05:20:29,724 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 180 [2025-02-06 05:20:29,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:20:29,727 INFO L225 Difference]: With dead ends: 387 [2025-02-06 05:20:29,728 INFO L226 Difference]: Without dead ends: 210 [2025-02-06 05:20:29,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-02-06 05:20:29,731 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 6 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 05:20:29,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1356 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 05:20:29,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2025-02-06 05:20:29,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2025-02-06 05:20:29,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 131 states have (on average 1.2061068702290076) internal successors, (158), 133 states have internal predecessors, (158), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2025-02-06 05:20:29,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 280 transitions. [2025-02-06 05:20:29,750 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 280 transitions. Word has length 180 [2025-02-06 05:20:29,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:20:29,751 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 280 transitions. [2025-02-06 05:20:29,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-02-06 05:20:29,751 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 280 transitions. [2025-02-06 05:20:29,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2025-02-06 05:20:29,753 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:20:29,754 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 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] [2025-02-06 05:20:29,772 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 05:20:29,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:20:29,955 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:20:29,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:20:29,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1612937717, now seen corresponding path program 1 times [2025-02-06 05:20:29,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:20:29,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104207966] [2025-02-06 05:20:29,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:20:29,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:20:33,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-02-06 05:20:35,036 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-02-06 05:20:35,036 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:20:35,036 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:20:37,702 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2025-02-06 05:20:37,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:20:37,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104207966] [2025-02-06 05:20:37,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104207966] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:20:37,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294880616] [2025-02-06 05:20:37,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:20:37,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:20:37,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:20:37,709 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 05:20:37,712 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 05:20:42,601 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-02-06 05:20:43,177 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-02-06 05:20:43,178 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:20:43,178 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:20:43,204 INFO L256 TraceCheckSpWp]: Trace formula consists of 4582 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 05:20:43,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:20:43,433 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2025-02-06 05:20:43,433 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:20:43,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294880616] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:20:43,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:20:43,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2025-02-06 05:20:43,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529983266] [2025-02-06 05:20:43,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:20:43,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 05:20:43,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:20:43,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 05:20:43,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-06 05:20:43,435 INFO L87 Difference]: Start difference. First operand 210 states and 280 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2025-02-06 05:20:43,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:20:43,506 INFO L93 Difference]: Finished difference Result 382 states and 508 transitions. [2025-02-06 05:20:43,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 05:20:43,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 182 [2025-02-06 05:20:43,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:20:43,511 INFO L225 Difference]: With dead ends: 382 [2025-02-06 05:20:43,511 INFO L226 Difference]: Without dead ends: 211 [2025-02-06 05:20:43,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-06 05:20:43,512 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 0 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 05:20:43,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 555 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 05:20:43,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2025-02-06 05:20:43,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2025-02-06 05:20:43,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 132 states have (on average 1.2045454545454546) internal successors, (159), 134 states have internal predecessors, (159), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2025-02-06 05:20:43,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 281 transitions. [2025-02-06 05:20:43,535 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 281 transitions. Word has length 182 [2025-02-06 05:20:43,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:20:43,535 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 281 transitions. [2025-02-06 05:20:43,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2025-02-06 05:20:43,536 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 281 transitions. [2025-02-06 05:20:43,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-02-06 05:20:43,538 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:20:43,538 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 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] [2025-02-06 05:20:43,563 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 05:20:43,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:20:43,739 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:20:43,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:20:43,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1131725917, now seen corresponding path program 1 times [2025-02-06 05:20:43,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:20:43,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019942863] [2025-02-06 05:20:43,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:20:43,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:20:48,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-02-06 05:20:49,238 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-02-06 05:20:49,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:20:49,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:20:51,787 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2025-02-06 05:20:51,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:20:51,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019942863] [2025-02-06 05:20:51,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019942863] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:20:51,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598668006] [2025-02-06 05:20:51,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:20:51,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:20:51,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:20:51,790 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:20:51,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 05:20:56,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-02-06 05:20:56,783 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-02-06 05:20:56,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:20:56,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:20:56,805 INFO L256 TraceCheckSpWp]: Trace formula consists of 4620 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-02-06 05:20:56,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:20:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2025-02-06 05:20:58,735 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 05:21:02,825 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2025-02-06 05:21:02,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598668006] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 05:21:02,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 05:21:02,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 8] total 20 [2025-02-06 05:21:02,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663103277] [2025-02-06 05:21:02,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 05:21:02,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-02-06 05:21:02,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:21:02,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-02-06 05:21:02,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2025-02-06 05:21:02,829 INFO L87 Difference]: Start difference. First operand 211 states and 281 transitions. Second operand has 20 states, 18 states have (on average 5.333333333333333) internal successors, (96), 20 states have internal predecessors, (96), 7 states have call successors, (40), 2 states have call predecessors, (40), 8 states have return successors, (44), 8 states have call predecessors, (44), 7 states have call successors, (44) [2025-02-06 05:21:04,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:21:04,943 INFO L93 Difference]: Finished difference Result 390 states and 514 transitions. [2025-02-06 05:21:04,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 05:21:04,945 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 5.333333333333333) internal successors, (96), 20 states have internal predecessors, (96), 7 states have call successors, (40), 2 states have call predecessors, (40), 8 states have return successors, (44), 8 states have call predecessors, (44), 7 states have call successors, (44) Word has length 184 [2025-02-06 05:21:04,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:21:04,953 INFO L225 Difference]: With dead ends: 390 [2025-02-06 05:21:04,954 INFO L226 Difference]: Without dead ends: 212 [2025-02-06 05:21:04,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 355 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=118, Invalid=532, Unknown=0, NotChecked=0, Total=650 [2025-02-06 05:21:04,956 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 12 mSDsluCounter, 3234 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3506 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-02-06 05:21:04,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 3506 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-02-06 05:21:04,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2025-02-06 05:21:04,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2025-02-06 05:21:04,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 133 states have (on average 1.2030075187969924) internal successors, (160), 135 states have internal predecessors, (160), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2025-02-06 05:21:04,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 282 transitions. [2025-02-06 05:21:04,992 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 282 transitions. Word has length 184 [2025-02-06 05:21:04,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:21:04,993 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 282 transitions. [2025-02-06 05:21:04,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 5.333333333333333) internal successors, (96), 20 states have internal predecessors, (96), 7 states have call successors, (40), 2 states have call predecessors, (40), 8 states have return successors, (44), 8 states have call predecessors, (44), 7 states have call successors, (44) [2025-02-06 05:21:04,994 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 282 transitions. [2025-02-06 05:21:04,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2025-02-06 05:21:04,999 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:21:04,999 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 4, 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] [2025-02-06 05:21:05,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 05:21:05,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:21:05,201 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:21:05,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:21:05,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1596685259, now seen corresponding path program 2 times [2025-02-06 05:21:05,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:21:05,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163923150] [2025-02-06 05:21:05,202 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 05:21:05,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms