./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_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 3d929c4e9006747fc293836abf67036a0361374cf7a5424bbaba854150966272 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:54:40,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:54:40,099 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:54:40,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:54:40,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:54:40,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:54:40,115 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:54:40,116 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:54:40,116 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:54:40,116 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:54:40,116 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:54:40,116 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:54:40,116 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:54:40,116 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:54:40,116 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:54:40,117 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:54:40,117 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:54:40,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:54:40,117 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:54:40,117 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:54:40,117 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:54:40,117 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:54:40,117 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:54:40,117 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:54:40,117 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:54:40,117 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:54:40,118 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:54:40,118 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:54:40,118 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:54:40,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:54:40,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:54:40,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:54:40,118 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:54:40,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:54:40,118 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:54:40,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:54:40,118 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:54:40,118 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:54:40,119 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:54:40,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:54:40,119 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 -> 3d929c4e9006747fc293836abf67036a0361374cf7a5424bbaba854150966272 [2025-02-08 01:54:40,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:54:40,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:54:40,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:54:40,293 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:54:40,293 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:54:40,294 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2025-02-08 01:54:41,422 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7ba372111/fd15d3928dea44fe90e9e69103d05da5/FLAG0c1958dbe [2025-02-08 01:54:41,860 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:54:41,860 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2025-02-08 01:54:41,892 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7ba372111/fd15d3928dea44fe90e9e69103d05da5/FLAG0c1958dbe [2025-02-08 01:54:42,003 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7ba372111/fd15d3928dea44fe90e9e69103d05da5 [2025-02-08 01:54:42,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:54:42,005 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:54:42,010 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:54:42,010 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:54:42,017 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:54:42,018 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:54:42" (1/1) ... [2025-02-08 01:54:42,019 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc07966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:42, skipping insertion in model container [2025-02-08 01:54:42,019 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:54:42" (1/1) ... [2025-02-08 01:54:42,086 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:54:42,250 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_capacity_harness.i[4501,4514] [2025-02-08 01:54:42,263 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_capacity_harness.i[4561,4574] [2025-02-08 01:54:42,775 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:42,776 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:42,776 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:42,776 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:42,777 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:42,791 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:42,791 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:42,792 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:42,793 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:43,126 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:43,127 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:43,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:54:43,175 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:54:43,190 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_capacity_harness.i[4501,4514] [2025-02-08 01:54:43,191 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_capacity_harness.i[4561,4574] [2025-02-08 01:54:43,257 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:43,257 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:43,258 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:43,258 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:43,258 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:43,262 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:43,262 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:43,263 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:43,263 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:43,302 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:43,302 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:43,306 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2025-02-08 01:54:43,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:54:43,454 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:54:43,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:43 WrapperNode [2025-02-08 01:54:43,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:54:43,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:54:43,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:54:43,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:54:43,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:43" (1/1) ... [2025-02-08 01:54:43,502 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:43" (1/1) ... [2025-02-08 01:54:43,542 INFO L138 Inliner]: procedures = 678, calls = 1548, calls flagged for inlining = 54, calls inlined = 10, statements flattened = 698 [2025-02-08 01:54:43,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:54:43,550 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:54:43,550 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:54:43,550 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:54:43,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:43" (1/1) ... [2025-02-08 01:54:43,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:43" (1/1) ... [2025-02-08 01:54:43,572 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:43" (1/1) ... [2025-02-08 01:54:43,645 INFO L175 MemorySlicer]: Split 338 memory accesses to 6 slices as follows [238, 2, 82, 3, 6, 7]. 70 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 10, 1, 0, 5]. The 252 writes are split as follows [232, 0, 17, 1, 2, 0]. [2025-02-08 01:54:43,645 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:43" (1/1) ... [2025-02-08 01:54:43,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:43" (1/1) ... [2025-02-08 01:54:43,664 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:43" (1/1) ... [2025-02-08 01:54:43,666 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:43" (1/1) ... [2025-02-08 01:54:43,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:43" (1/1) ... [2025-02-08 01:54:43,679 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:43" (1/1) ... [2025-02-08 01:54:43,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:54:43,685 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:54:43,685 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:54:43,685 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:54:43,690 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:43" (1/1) ... [2025-02-08 01:54:43,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:54:43,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:54:43,711 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:54:43,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:54:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-02-08 01:54:43,727 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-02-08 01:54:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:54:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-08 01:54:43,727 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-08 01:54:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-08 01:54:43,728 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-08 01:54:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:54:43,728 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:54:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:54:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:54:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:54:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:54:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:54:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:54:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:54:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:54:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:54:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:54:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:54:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:54:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:54:43,729 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:54:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:54:43,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:54:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:54:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:54:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-02-08 01:54:43,729 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-02-08 01:54:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:54:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:54:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:54:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:54:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:54:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:54:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:54:43,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:54:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:54:43,730 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:54:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-08 01:54:43,730 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-08 01:54:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-08 01:54:43,730 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-08 01:54:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:54:43,730 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:54:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:54:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:54:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:54:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:54:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:54:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:54:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-02-08 01:54:43,731 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-02-08 01:54:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:54:43,731 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:54:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:54:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:54:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:54:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:54:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:54:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:54:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:54:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:54:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:54:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:54:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:54:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:54:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:54:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:54:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:54:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:54:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:54:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:54:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:54:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:54:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:54:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:54:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:54:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2025-02-08 01:54:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2025-02-08 01:54:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:54:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:54:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:54:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:54:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:54:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:54:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:54:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:54:43,956 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:54:43,957 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:54:44,003 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-08 01:54:44,063 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-08 01:54:44,081 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-08 01:54:44,167 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7494: havoc aws_priority_queue_backpointers_valid_#t~ret686#1;havoc aws_priority_queue_backpointers_valid_#t~short687#1; [2025-02-08 01:54:44,217 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-02-08 01:54:44,220 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:54:49,232 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7538: havoc aws_priority_queue_capacity_#t~ret696#1; [2025-02-08 01:54:49,283 INFO L? ?]: Removed 135 outVars from TransFormulas that were not future-live. [2025-02-08 01:54:49,283 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:54:49,290 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:54:49,291 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:54:49,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:54:49 BoogieIcfgContainer [2025-02-08 01:54:49,291 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:54:49,292 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:54:49,293 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:54:49,296 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:54:49,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:54:42" (1/3) ... [2025-02-08 01:54:49,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309455c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:54:49, skipping insertion in model container [2025-02-08 01:54:49,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:43" (2/3) ... [2025-02-08 01:54:49,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309455c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:54:49, skipping insertion in model container [2025-02-08 01:54:49,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:54:49" (3/3) ... [2025-02-08 01:54:49,297 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_capacity_harness.i [2025-02-08 01:54:49,307 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:54:49,308 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_capacity_harness.i that has 18 procedures, 177 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-08 01:54:49,357 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:54:49,366 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;@7158ec2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:54:49,367 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:54:49,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 112 states have internal predecessors, (134), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2025-02-08 01:54:49,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-02-08 01:54:49,384 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:54:49,385 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] [2025-02-08 01:54:49,385 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:54:49,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:54:49,390 INFO L85 PathProgramCache]: Analyzing trace with hash -512546831, now seen corresponding path program 1 times [2025-02-08 01:54:49,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:54:49,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422378080] [2025-02-08 01:54:49,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:54:49,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:54:53,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-02-08 01:54:54,290 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-02-08 01:54:54,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:54:54,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:54:54,704 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-02-08 01:54:54,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:54:54,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422378080] [2025-02-08 01:54:54,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422378080] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:54:54,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124757718] [2025-02-08 01:54:54,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:54:54,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:54:54,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:54:54,709 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:54:54,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 01:54:58,683 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-02-08 01:54:59,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-02-08 01:54:59,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:54:59,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:54:59,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 4505 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:54:59,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:54:59,174 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-02-08 01:54:59,175 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:54:59,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124757718] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:54:59,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:54:59,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:54:59,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005025242] [2025-02-08 01:54:59,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:54:59,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:54:59,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:54:59,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:54:59,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:54:59,196 INFO L87 Difference]: Start difference. First operand has 177 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 112 states have internal predecessors, (134), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) 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, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-08 01:54:59,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:54:59,230 INFO L93 Difference]: Finished difference Result 333 states and 452 transitions. [2025-02-08 01:54:59,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:54:59,231 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, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 137 [2025-02-08 01:54:59,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:54:59,238 INFO L225 Difference]: With dead ends: 333 [2025-02-08 01:54:59,238 INFO L226 Difference]: Without dead ends: 168 [2025-02-08 01:54:59,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:54:59,244 INFO L435 NwaCegarLoop]: 226 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, 226 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 01:54:59,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:54:59,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2025-02-08 01:54:59,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2025-02-08 01:54:59,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 105 states have (on average 1.2) internal successors, (126), 106 states have internal predecessors, (126), 46 states have call successors, (46), 16 states have call predecessors, (46), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-02-08 01:54:59,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 217 transitions. [2025-02-08 01:54:59,287 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 217 transitions. Word has length 137 [2025-02-08 01:54:59,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:54:59,288 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 217 transitions. [2025-02-08 01:54:59,288 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, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-08 01:54:59,289 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 217 transitions. [2025-02-08 01:54:59,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-02-08 01:54:59,295 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:54:59,295 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] [2025-02-08 01:54:59,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 01:54:59,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-08 01:54:59,499 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:54:59,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:54:59,500 INFO L85 PathProgramCache]: Analyzing trace with hash 11051534, now seen corresponding path program 1 times [2025-02-08 01:54:59,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:54:59,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682304159] [2025-02-08 01:54:59,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:54:59,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:55:03,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-02-08 01:55:03,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-02-08 01:55:03,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:55:03,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:55:04,260 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2025-02-08 01:55:04,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:55:04,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682304159] [2025-02-08 01:55:04,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682304159] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:55:04,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:55:04,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:55:04,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018739160] [2025-02-08 01:55:04,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:55:04,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:55:04,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:55:04,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:55:04,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:55:04,263 INFO L87 Difference]: Start difference. First operand 168 states and 217 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-08 01:55:04,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:55:04,810 INFO L93 Difference]: Finished difference Result 285 states and 368 transitions. [2025-02-08 01:55:04,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:55:04,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 137 [2025-02-08 01:55:04,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:55:04,812 INFO L225 Difference]: With dead ends: 285 [2025-02-08 01:55:04,812 INFO L226 Difference]: Without dead ends: 168 [2025-02-08 01:55:04,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:55:04,814 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 11 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-08 01:55:04,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 766 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-08 01:55:04,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2025-02-08 01:55:04,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2025-02-08 01:55:04,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 105 states have (on average 1.1904761904761905) internal successors, (125), 106 states have internal predecessors, (125), 46 states have call successors, (46), 16 states have call predecessors, (46), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-02-08 01:55:04,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 216 transitions. [2025-02-08 01:55:04,823 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 216 transitions. Word has length 137 [2025-02-08 01:55:04,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:55:04,823 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 216 transitions. [2025-02-08 01:55:04,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-08 01:55:04,824 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 216 transitions. [2025-02-08 01:55:04,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2025-02-08 01:55:04,825 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:55:04,826 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] [2025-02-08 01:55:04,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:55:04,826 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:55:04,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:55:04,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1685003608, now seen corresponding path program 1 times [2025-02-08 01:55:04,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:55:04,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066045930] [2025-02-08 01:55:04,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:55:04,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:55:08,839 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-02-08 01:55:08,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-02-08 01:55:08,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:55:08,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:55:10,017 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2025-02-08 01:55:10,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:55:10,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066045930] [2025-02-08 01:55:10,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066045930] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:55:10,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595456316] [2025-02-08 01:55:10,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:55:10,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:55:10,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:55:10,022 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:55:10,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 01:55:14,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-02-08 01:55:14,619 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-02-08 01:55:14,619 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:55:14,619 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:55:14,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 4555 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 01:55:14,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:55:16,021 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2025-02-08 01:55:16,021 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:55:16,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595456316] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:55:16,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:55:16,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-02-08 01:55:16,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638675791] [2025-02-08 01:55:16,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:55:16,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:55:16,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:55:16,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:55:16,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-02-08 01:55:16,023 INFO L87 Difference]: Start difference. First operand 168 states and 216 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2025-02-08 01:55:17,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:55:17,563 INFO L93 Difference]: Finished difference Result 304 states and 397 transitions. [2025-02-08 01:55:17,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:55:17,563 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 145 [2025-02-08 01:55:17,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:55:17,574 INFO L225 Difference]: With dead ends: 304 [2025-02-08 01:55:17,574 INFO L226 Difference]: Without dead ends: 170 [2025-02-08 01:55:17,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-08 01:55:17,575 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 38 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-02-08 01:55:17,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 1186 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-02-08 01:55:17,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2025-02-08 01:55:17,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2025-02-08 01:55:17,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 106 states have (on average 1.1886792452830188) internal successors, (126), 108 states have internal predecessors, (126), 46 states have call successors, (46), 16 states have call predecessors, (46), 17 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2025-02-08 01:55:17,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 220 transitions. [2025-02-08 01:55:17,596 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 220 transitions. Word has length 145 [2025-02-08 01:55:17,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:55:17,597 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 220 transitions. [2025-02-08 01:55:17,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2025-02-08 01:55:17,598 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 220 transitions. [2025-02-08 01:55:17,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-02-08 01:55:17,600 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:55:17,600 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] [2025-02-08 01:55:17,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 01:55:17,801 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 [2025-02-08 01:55:17,801 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:55:17,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:55:17,802 INFO L85 PathProgramCache]: Analyzing trace with hash 352036857, now seen corresponding path program 1 times [2025-02-08 01:55:17,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:55:17,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045530631] [2025-02-08 01:55:17,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:55:17,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:55:21,302 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-02-08 01:55:21,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-02-08 01:55:21,408 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:55:21,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:55:22,725 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2025-02-08 01:55:22,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:55:22,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045530631] [2025-02-08 01:55:22,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045530631] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:55:22,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:55:22,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 01:55:22,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190189975] [2025-02-08 01:55:22,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:55:22,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:55:22,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:55:22,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:55:22,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:55:22,729 INFO L87 Difference]: Start difference. First operand 170 states and 220 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2025-02-08 01:55:23,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:55:23,784 INFO L93 Difference]: Finished difference Result 290 states and 375 transitions. [2025-02-08 01:55:23,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 01:55:23,787 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 159 [2025-02-08 01:55:23,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:55:23,790 INFO L225 Difference]: With dead ends: 290 [2025-02-08 01:55:23,791 INFO L226 Difference]: Without dead ends: 170 [2025-02-08 01:55:23,791 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:55:23,792 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 29 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-08 01:55:23,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 910 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-08 01:55:23,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2025-02-08 01:55:23,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2025-02-08 01:55:23,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 106 states have (on average 1.179245283018868) internal successors, (125), 108 states have internal predecessors, (125), 46 states have call successors, (46), 16 states have call predecessors, (46), 17 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2025-02-08 01:55:23,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 219 transitions. [2025-02-08 01:55:23,808 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 219 transitions. Word has length 159 [2025-02-08 01:55:23,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:55:23,808 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 219 transitions. [2025-02-08 01:55:23,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2025-02-08 01:55:23,809 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 219 transitions. [2025-02-08 01:55:23,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2025-02-08 01:55:23,810 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:55:23,810 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] [2025-02-08 01:55:23,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 01:55:23,810 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:55:23,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:55:23,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1150947586, now seen corresponding path program 1 times [2025-02-08 01:55:23,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:55:23,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234644082] [2025-02-08 01:55:23,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:55:23,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:55:27,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-02-08 01:55:27,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-02-08 01:55:27,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:55:27,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:55:29,000 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2025-02-08 01:55:29,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:55:29,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234644082] [2025-02-08 01:55:29,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234644082] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:55:29,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442288033] [2025-02-08 01:55:29,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:55:29,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:55:29,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:55:29,003 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:55:29,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 01:55:33,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-02-08 01:55:33,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-02-08 01:55:33,692 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:55:33,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:55:33,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 4751 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 01:55:33,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:55:34,084 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2025-02-08 01:55:34,084 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:55:34,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442288033] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:55:34,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:55:34,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2025-02-08 01:55:34,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273859767] [2025-02-08 01:55:34,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:55:34,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:55:34,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:55:34,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:55:34,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-08 01:55:34,089 INFO L87 Difference]: Start difference. First operand 170 states and 219 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2025-02-08 01:55:34,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:55:34,249 INFO L93 Difference]: Finished difference Result 290 states and 375 transitions. [2025-02-08 01:55:34,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:55:34,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 175 [2025-02-08 01:55:34,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:55:34,253 INFO L225 Difference]: With dead ends: 290 [2025-02-08 01:55:34,253 INFO L226 Difference]: Without dead ends: 173 [2025-02-08 01:55:34,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-08 01:55:34,254 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 1 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 01:55:34,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 628 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 01:55:34,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-02-08 01:55:34,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 172. [2025-02-08 01:55:34,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 108 states have (on average 1.1759259259259258) internal successors, (127), 110 states have internal predecessors, (127), 46 states have call successors, (46), 16 states have call predecessors, (46), 17 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2025-02-08 01:55:34,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 221 transitions. [2025-02-08 01:55:34,269 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 221 transitions. Word has length 175 [2025-02-08 01:55:34,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:55:34,270 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 221 transitions. [2025-02-08 01:55:34,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2025-02-08 01:55:34,271 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 221 transitions. [2025-02-08 01:55:34,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2025-02-08 01:55:34,272 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:55:34,273 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] [2025-02-08 01:55:34,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 01:55:34,476 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 [2025-02-08 01:55:34,476 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:55:34,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:55:34,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1781406211, now seen corresponding path program 1 times [2025-02-08 01:55:34,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:55:34,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982753566] [2025-02-08 01:55:34,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:55:34,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:55:38,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-02-08 01:55:38,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-02-08 01:55:38,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:55:38,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:55:39,912 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2025-02-08 01:55:39,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:55:39,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982753566] [2025-02-08 01:55:39,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982753566] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:55:39,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314084521] [2025-02-08 01:55:39,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:55:39,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:55:39,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:55:39,914 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) [2025-02-08 01:55:39,916 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 [2025-02-08 01:55:44,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-02-08 01:55:44,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-02-08 01:55:44,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:55:44,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:55:44,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 4746 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 01:55:44,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:55:46,896 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-02-08 01:55:46,897 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:55:46,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314084521] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:55:46,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:55:46,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2025-02-08 01:55:46,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514087838] [2025-02-08 01:55:46,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:55:46,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 01:55:46,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:55:46,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 01:55:46,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2025-02-08 01:55:46,898 INFO L87 Difference]: Start difference. First operand 172 states and 221 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2025-02-08 01:55:49,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:55:49,105 INFO L93 Difference]: Finished difference Result 309 states and 398 transitions. [2025-02-08 01:55:49,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 01:55:49,106 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 175 [2025-02-08 01:55:49,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:55:49,108 INFO L225 Difference]: With dead ends: 309 [2025-02-08 01:55:49,108 INFO L226 Difference]: Without dead ends: 172 [2025-02-08 01:55:49,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2025-02-08 01:55:49,109 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 60 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-02-08 01:55:49,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 1218 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-02-08 01:55:49,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2025-02-08 01:55:49,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2025-02-08 01:55:49,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 108 states have (on average 1.1759259259259258) internal successors, (127), 110 states have internal predecessors, (127), 46 states have call successors, (46), 16 states have call predecessors, (46), 17 states have return successors, (47), 45 states have call predecessors, (47), 45 states have call successors, (47) [2025-02-08 01:55:49,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 220 transitions. [2025-02-08 01:55:49,123 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 220 transitions. Word has length 175 [2025-02-08 01:55:49,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:55:49,124 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 220 transitions. [2025-02-08 01:55:49,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2025-02-08 01:55:49,124 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 220 transitions. [2025-02-08 01:55:49,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2025-02-08 01:55:49,127 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:55:49,127 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:55:49,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-08 01:55:49,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-02-08 01:55:49,328 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:55:49,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:55:49,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1180706878, now seen corresponding path program 2 times [2025-02-08 01:55:49,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:55:49,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638178305] [2025-02-08 01:55:49,328 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:55:49,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:55:52,872 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 189 statements into 2 equivalence classes. [2025-02-08 01:55:53,245 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 189 of 189 statements. [2025-02-08 01:55:53,245 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 01:55:53,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:55:54,302 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2025-02-08 01:55:54,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:55:54,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638178305] [2025-02-08 01:55:54,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638178305] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:55:54,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:55:54,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:55:54,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049845076] [2025-02-08 01:55:54,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:55:54,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:55:54,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:55:54,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:55:54,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:55:54,305 INFO L87 Difference]: Start difference. First operand 172 states and 220 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2025-02-08 01:55:55,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:55:55,418 INFO L93 Difference]: Finished difference Result 269 states and 341 transitions. [2025-02-08 01:55:55,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:55:55,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 189 [2025-02-08 01:55:55,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:55:55,424 INFO L225 Difference]: With dead ends: 269 [2025-02-08 01:55:55,424 INFO L226 Difference]: Without dead ends: 170 [2025-02-08 01:55:55,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:55:55,428 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 17 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-08 01:55:55,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 918 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-08 01:55:55,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2025-02-08 01:55:55,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2025-02-08 01:55:55,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 107 states have (on average 1.1682242990654206) internal successors, (125), 108 states have internal predecessors, (125), 46 states have call successors, (46), 16 states have call predecessors, (46), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-02-08 01:55:55,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 216 transitions. [2025-02-08 01:55:55,448 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 216 transitions. Word has length 189 [2025-02-08 01:55:55,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:55:55,453 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 216 transitions. [2025-02-08 01:55:55,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2025-02-08 01:55:55,453 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 216 transitions. [2025-02-08 01:55:55,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2025-02-08 01:55:55,458 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:55:55,459 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2025-02-08 01:55:55,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 01:55:55,459 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:55:55,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:55:55,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1412230878, now seen corresponding path program 1 times [2025-02-08 01:55:55,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:55:55,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279360213] [2025-02-08 01:55:55,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:55:55,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:55:59,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 217 statements into 1 equivalence classes. [2025-02-08 01:56:01,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 217 of 217 statements. [2025-02-08 01:56:01,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:56:01,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat